E263 · Source-scoped pinout variants

USB 3.0 front-panel 19-pin internal connector engineering reference

Intel support documentation groups motherboard-header positions 1–19 into power, SuperSpeed receive/transmit, ground, USB differential and over-current functions.

Open field note Source trail

Source checked · no independent review claimed · Fabrication approved: no

USB 3.0 front-panel 19-pin logical assignment original orientation schematic — Original pinout diagram; read the exact variant and view below. Not to scale.

Contact count

19

motherboard front-panel USB 3.0 internal header

Mating boundary

Shape is not the verdict.

19-populated-position USB 3.0 motherboard header ↔ compatible front-panel internal cable plug

Orientation

How to read this profile

Logical motherboard-header numbering follows Intel’s table; V44 does not infer a physical left/right face orientation from that table.

Source-scoped identification facts

Each value retains its exact example, role and measurement axis. Facts from different parts must not be combined into an invented component.

Documented examples; not a mating drawing or compatibility approval
Nominal contacts	19S283Source-backed nominal position/contact count: 19.
Contact rows	2 (B550-A PRO:JUSB3)S757Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. B550-A PRO:JUSB3. Documented role: PCB header. IntelThinMiniITXRev1.2p.26claims2.54mmpitch forUSB3.0while mechanicalS828drawing remains unviewed after direct403. This conflicting number is not adopted.; No pitch measured from MSI schematic or drawing pixels. No printedJUSB3label claimed as visible board silkscreen.
Connector role	header; PCB header (B550-A PRO:JUSB3)S283 · S292 · S757Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. motherboard front-panel USB 3.0 internal header B550-A PRO:JUSB3. Documented role: PCB header. IntelThinMiniITXRev1.2p.26claims2.54mmpitch forUSB3.0while mechanicalS828drawing remains unviewed after direct403. This conflicting number is not adopted.; No pitch measured from MSI schematic or drawing pixels. No printedJUSB3label claimed as visible board silkscreen.
Mounting	board (Claim C263B)S292Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V44 logical assignment for the documented Intel header context; no physical face orientation or universal motherboard pin geometry is inferred.
Keying / polarization	20position outline with pin20 absent;19loadedpins in published JUSB3drawing. (B550-A PRO:JUSB3)S757Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. B550-A PRO:JUSB3. Documented role: PCB header. IntelThinMiniITXRev1.2p.26claims2.54mmpitch forUSB3.0while mechanicalS828drawing remains unviewed after direct403. This conflicting number is not adopted.; No pitch measured from MSI schematic or drawing pixels. No printedJUSB3label claimed as visible board silkscreen.
Manufacturer	MSI (B550-A PRO:JUSB3)S757Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. B550-A PRO:JUSB3. Documented role: PCB header. IntelThinMiniITXRev1.2p.26claims2.54mmpitch forUSB3.0while mechanicalS828drawing remains unviewed after direct403. This conflicting number is not adopted.; No pitch measured from MSI schematic or drawing pixels. No printedJUSB3label claimed as visible board silkscreen.
Series	B550-A PRO (B550-A PRO:JUSB3)S757Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. B550-A PRO:JUSB3. Documented role: PCB header. IntelThinMiniITXRev1.2p.26claims2.54mmpitch forUSB3.0while mechanicalS828drawing remains unviewed after direct403. This conflicting number is not adopted.; No pitch measured from MSI schematic or drawing pixels. No printedJUSB3label claimed as visible board silkscreen.
Exact part / implementation	B550-A PRO:JUSB3 (B550-A PRO:JUSB3)S757Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. B550-A PRO:JUSB3. Documented role: PCB header. IntelThinMiniITXRev1.2p.26claims2.54mmpitch forUSB3.0while mechanicalS828drawing remains unviewed after direct403. This conflicting number is not adopted.; No pitch measured from MSI schematic or drawing pixels. No printedJUSB3label claimed as visible board silkscreen.
View convention	Board-side diagram;row1runs1to10lefttoright,row2runs20to11lefttoright. View is the published MSI drawing,not cable wire-side. (B550-A PRO:JUSB3)S757Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. B550-A PRO:JUSB3. Documented role: PCB header. IntelThinMiniITXRev1.2p.26claims2.54mmpitch forUSB3.0while mechanicalS828drawing remains unviewed after direct403. This conflicting number is not adopted.; No pitch measured from MSI schematic or drawing pixels. No printedJUSB3label claimed as visible board silkscreen.

Not recorded: Positions / cavity span, Populated contacts, Contact pitch, Dimensions / axis, Contact gender / arrangement, Coupling / latch, Shell / form, Recorded markings. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.

Recorded variant and source limits

Intel’s table groups differential-pair members but does not give V44 a safe basis to assign plus/minus polarity or a physical face-view locator.
Motherboard implementation, USB mode, cable construction and front-panel device capability still require exact product documentation.
USB3 ICC A - motherboard header (Table 2-1): Figure 2-1 numbering (see connector view_convention).
USB3 ICC B - front-panel daughter-card connector (Table 2-2): Contact numbers only; Table 2-3 states the cable joins motherboard pin n to daughter-card pin 20-n.
Intel USB3 ICC A (motherboard header): Intel Figure 2-1 numbering.
Intel USB3 ICC B (front-panel daughter-card header): Intel Figure 2-1 numbering; Table 2-3 maps motherboard pin n to daughter-card pin 20-n.

Report a correction to these facts →

Pins & wiring

Pinout

Choose the exact wiring. Pin numbers follow its stated view; a schematic does not establish physical positions. Check your exact device before wiring.

Dark pinout view

What the status labels mean

Confirmed: Recorded research passes agree within this variant; this is not independent human review or hardware validation.
Single source: Only one underlying document, or one pass, supports this assignment.
Device-specific: Supported for the named equipment or wiring only. Check your device’s manual.
Unverified: Missing or conflicting evidence. Do not wire from this row.
Not connected: The source explicitly says NC, no contact or no pin for this wiring.

Wiring variantUSB3 ICC A - motherboard header (Table 2-1)

USB3 ICC A - motherboard header (Table 2-1)

View and evidence limits

Figure 2-1 numbering (see connector view_convention).

P263 USB 3.0 19-pin header — **Agree** on 18 of 19 pins in both variants (motherboard and front-panel card) — **Pin 10:** Intel's table labels it "ID" in the signal column but describes over-current protection. Pass A recorded "ID" as verified; pass B marked it unverified because of the conflict. Publish as "ID (Intel's own table also describes it as over-current protection)", not as a settled function.
Signal names use the A-side (host) naming; SSRX/SSTX direction perspective is not stated in Table 2-1.
The specification covers 19 pins; Figure 2-1 shows an empty bottom-row position under pin 1 and a key on the upper edge, but assigns no number to the empty position and gives no key dimensions in the inspected pages.
The figure does not state whether it is a top (mating) view or a solder-side view.
No motherboard manual was used; vendor headers may label pin 10 differently.

Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.

USB3 ICC A - motherboard header (Table 2-1) — source-scoped contact map
Pin	Signal	What it does	Status
1	Vbus	USB bus power; voltage and current depend on the device.	Single source Sources
2	IntA_P1_SSRX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
3	IntA_P1_SSRX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
4	GND	Ground reference and return.	Single source Sources
5	IntA_P1_SSTX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
6	IntA_P1_SSTX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
7	GND	Ground reference and return.	Single source Sources
8	IntA_P1_D-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
9	IntA_P1_D+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
10	Not confirmed	No settled assignment. Do not wire from this row.	Unverified Sources
11	IntA_P2_D+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
12	IntA_P2_D-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
13	GND	Ground reference and return.	Single source Sources
14	IntA_P2_SSTX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
15	IntA_P2_SSTX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
16	GND	Ground reference and return.	Single source Sources
17	IntA_P2_SSRX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
18	IntA_P2_SSRX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
19	Vbus	USB bus power; voltage and current depend on the device.	Single source Sources

Sources (1)

S828 · Intel Corporation · USB 3.0 Internal Connector and Cable Specification
Revision 1.0, August 20, 2010 · Section 2.1, Table 2-1 'USB3 ICC A Pin Assignment and Description' (motherboard header); Section 2.1, Figure 2-1 'USB3 ICC pin numbering' (pins 1-10 top row, 19-11 bottom row, key, over-current pin 10)

USB3 ICC B - front-panel daughter-card connector (Table 2-2)

View and evidence limits

Contact numbers only; Table 2-3 states the cable joins motherboard pin n to daughter-card pin 20-n.

P263 USB 3.0 19-pin header — **Agree** on 18 of 19 pins in both variants (motherboard and front-panel card) — **Pin 10:** Intel's table labels it "ID" in the signal column but describes over-current protection. Pass A recorded "ID" as verified; pass B marked it unverified because of the conflict. Publish as "ID (Intel's own table also describes it as over-current protection)", not as a settled function.
Table 2-2 keeps the A-side signal names (IntA_...), so pin 2 on the B side carries IntA_P2_SSRX-.
The specification covers 19 pins; Figure 2-1 shows an empty bottom-row position under pin 1 and a key on the upper edge, but assigns no number to the empty position and gives no key dimensions in the inspected pages.
The figure does not state whether it is a top (mating) view or a solder-side view.
No motherboard manual was used; vendor headers may label pin 10 differently.

Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.

USB3 ICC B - front-panel daughter-card connector (Table 2-2) — source-scoped contact map
Pin	Signal	What it does	Status
1	Vbus	USB bus power; voltage and current depend on the device.	Single source Sources
2	IntA_P2_SSRX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
3	IntA_P2_SSRX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
4	GND	Ground reference and return.	Single source Sources
5	IntA_P2_SSTX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
6	IntA_P2_SSTX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
7	GND	Ground reference and return.	Single source Sources
8	IntA_P2_D-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
9	IntA_P2_D+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
10	Not confirmed	No settled assignment. Do not wire from this row.	Unverified Sources
11	IntA_P1_D+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
12	IntA_P1_D-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
13	GND	Ground reference and return.	Single source Sources
14	IntA_P1_SSTX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
15	IntA_P1_SSTX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
16	GND	Ground reference and return.	Single source Sources
17	IntA_P1_SSRX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
18	IntA_P1_SSRX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
19	Vbus	USB bus power; voltage and current depend on the device.	Single source Sources

Sources (1)

S828 · Intel Corporation · USB 3.0 Internal Connector and Cable Specification
Revision 1.0, August 20, 2010 · Section 2.1, Table 2-2 'USB3 ICC B Pin Assignment and Description' (daughter-card connector), continued on p.10; Section 2.1, Table 2-3 'Pin connection diagram and table' (motherboard pin n wired to daughter-card pin 20-n)

Intel USB3 ICC A (motherboard header)

View and evidence limits

Intel Figure 2-1 numbering.

P263 USB 3.0 19-pin header — **Agree** on 18 of 19 pins in both variants (motherboard and front-panel card) — **Pin 10:** Intel's table labels it "ID" in the signal column but describes over-current protection. Pass A recorded "ID" as verified; pass B marked it unverified because of the conflict. Publish as "ID (Intel's own table also describes it as over-current protection)", not as a settled function.
Signal name 'ID' conflicts with the description 'Over Current Protection' in both Table 2-1 and Table 2-2.
The spec names 19 pins; the location of the unpopulated twentieth position is not labelled in Figure 2-1 as retrieved.
A second, manufacturer motherboard manual was sought (GIGABYTE F_U32) but no official download could be retrieved (gigabyte.com returned HTTP 403); only third-party mirrors were found and were not used.

Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.

Intel USB3 ICC A (motherboard header) — source-scoped contact map
Pin	Signal	What it does	Status
1	Vbus	USB bus power; voltage and current depend on the device.	Single source Sources
2	IntA_P1_SSRX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
3	IntA_P1_SSRX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
4	GND	Ground reference and return.	Single source Sources
5	IntA_P1_SSTX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
6	IntA_P1_SSTX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
7	GND	Ground reference and return.	Single source Sources
8	IntA_P1_D-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
9	IntA_P1_D+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
10	Not confirmed	No settled assignment. Do not wire from this row.	Unverified Sources
11	IntA_P2_D+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
12	IntA_P2_D-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
13	GND	Ground reference and return.	Single source Sources
14	IntA_P2_SSTX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
15	IntA_P2_SSTX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
16	GND	Ground reference and return.	Single source Sources
17	IntA_P2_SSRX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
18	IntA_P2_SSRX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
19	Vbus	USB bus power; voltage and current depend on the device.	Single source Sources

Sources (1)

S828 · Intel Corporation · USB 3.0 Internal Connector and Cable Specification
Revision 1.0, August 20, 2010 · Section 2.1, Table 2-1 'USB3 ICC A Pin Assignment and Description', p. 9; Figure 2-1 'USB3 ICC pin numbering', p. 8; Table 2-3 'Pin connection diagram and table', p. 10

Intel USB3 ICC B (front-panel daughter-card header)

View and evidence limits

Intel Figure 2-1 numbering; Table 2-3 maps motherboard pin n to daughter-card pin 20-n.

P263 USB 3.0 19-pin header — **Agree** on 18 of 19 pins in both variants (motherboard and front-panel card) — **Pin 10:** Intel's table labels it "ID" in the signal column but describes over-current protection. Pass A recorded "ID" as verified; pass B marked it unverified because of the conflict. Publish as "ID (Intel's own table also describes it as over-current protection)", not as a settled function.
Signal name 'ID' conflicts with the description 'Over Current Protection' in both Table 2-1 and Table 2-2.
The spec names 19 pins; the location of the unpopulated twentieth position is not labelled in Figure 2-1 as retrieved.
A second, manufacturer motherboard manual was sought (GIGABYTE F_U32) but no official download could be retrieved (gigabyte.com returned HTTP 403); only third-party mirrors were found and were not used.

Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.

Intel USB3 ICC B (front-panel daughter-card header) — source-scoped contact map
Pin	Signal	What it does	Status
1	Vbus	USB bus power; voltage and current depend on the device.	Single source Sources
2	IntA_P2_SSRX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
3	IntA_P2_SSRX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
4	GND	Ground reference and return.	Single source Sources
5	IntA_P2_SSTX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
6	IntA_P2_SSTX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
7	GND	Ground reference and return.	Single source Sources
8	IntA_P2_D-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
9	IntA_P2_D+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
10	Not confirmed	No settled assignment. Do not wire from this row.	Unverified Sources
11	IntA_P1_D+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
12	IntA_P1_D-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
13	GND	Ground reference and return.	Single source Sources
14	IntA_P1_SSTX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
15	IntA_P1_SSTX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
16	GND	Ground reference and return.	Single source Sources
17	IntA_P1_SSRX+	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
18	IntA_P1_SSRX-	Signal conductor. Pair, polarity and direction follow this named wiring.	Single source Sources
19	Vbus	USB bus power; voltage and current depend on the device.	Single source Sources

Sources (1)

S828 · Intel Corporation · USB 3.0 Internal Connector and Cable Specification
Revision 1.0, August 20, 2010 · Section 2.1, Table 2-2 'USB3 ICC B Pin Assignment and Description', pp. 9-10; Table 2-3 'Pin connection diagram and table', p. 10

Unknowns stay unknown.

Intel’s table groups differential-pair members but does not give V44 a safe basis to assign plus/minus polarity or a physical face-view locator.
Motherboard implementation, USB mode, cable construction and front-panel device capability still require exact product documentation.

Your next step

Use the detail without guessing past its limits.

Read the connector field note Recognition clues and practical checks.Work through a connection Keep exact equipment and cable requirements separate.

Source trail

Claims and sources

C263Asource checked

Intel documents a front-panel USB 3.0 motherboard connector with populated pin positions numbered 1 through 19.

Intel · Front Panel USB 3.0 Connector Pin-Out Signal Names ↗
Front-panel USB 3.0 connector table · Identification/reference scope only. V43 does not convert this source into a universal pinout, fabrication drawing, electrical approval, protocol guarantee or end-to-end compatibility verdict.

C263Bsource checked

Intel lists grouped signal roles for populated front-panel USB 3.0 motherboard-header positions 1 through 19, including power, SuperSpeed receive/transmit pairs, grounds, USB 2.0 differential pairs and over-current protection.

Intel · Front Panel USB 3.0 Connector Pin-Out Signal Names ↗
Resolution table: motherboard-header pins 1–19 · The article does not establish a physical face-view orientation or a universal motherboard implementation beyond the documented header context.

C809Lsource checked

USB3 ICC A - motherboard header (Table 2-1): original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Intel Corporation · USB 3.0 Internal Connector and Cable Specification ↗
Section 2.1, Figure 2-1 'USB3 ICC pin numbering' (pins 1-10 top row, 19-11 bottom row, key, over-current pin 10); Section 2.1, Table 2-1 'USB3 ICC A Pin Assignment and Description' (motherboard header); Section 2.1, Table 2-1 'USB3 ICC A Pin Assignment and Description', p. 9; Figure 2-1 'USB3 ICC pin numbering', p. 8; Section 2.1, Table 2-2 'USB3 ICC B Pin Assignment and Description' (daughter-card connector), continued on p.10; Section 2.1, Table 2-2 'USB3 ICC B Pin Assignment and Description', pp. 9-10; Section 2.1, Table 2-3 'Pin connection diagram and table' (motherboard pin n wired to daughter-card pin 20-n); Table 2-3 'Pin connection diagram and table', p. 10 · Source scope and unresolved evidence are preserved in the engineering variant.

C809Msource checked

USB3 ICC B - front-panel daughter-card connector (Table 2-2): original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

C809Nsource checked

Intel USB3 ICC A (motherboard header): original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

C809Osource checked

Intel USB3 ICC B (front-panel daughter-card header): original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

3 source records support this profile. No independent engineering review or hardware validation is claimed.

Evidence behind this page

Scope first. Source second. Approval separate.

3 linked sources · 6 scoped claims · 0 sources with inspection/access flags.

Page scope: Original V44 logical-assignment schematic; not to scale and not a physical face-view or manufacturing drawing.

Assessment 2026-10-22 · earliest scheduled source review 2027-01-04. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 3 source scopes, access limits and dates

S283 · Front Panel USB 3.0 Connector Pin-Out Signal Names

Intel · Manufacturer / product-owner domain · inspected 2026-10-06 · due 2027-01-04

Within inspection window

Scoped support: Documents motherboard-header pin numbers 1 through 19 for an Intel front-panel USB 3.0 connector; V43 uses only the populated-contact identity.

Not established / limitations: Identification/reference scope only. V43 does not convert this source into a universal pinout, fabrication drawing, electrical approval, protocol guarantee or end-to-end compatibility verdict.

Locator: Front-panel USB 3.0 connector table

S292 · Front Panel USB 3.0 Connector Pin-Out Signal Names

Intel · Manufacturer / product-owner domain · inspected 2026-10-06 · due 2027-01-04

Within inspection window

Scoped support: Primary vendor support article listing grouped signal roles for populated motherboard-header positions 1 through 19 of a front-panel USB 3.0 connector.

Not established / limitations: The article does not establish a physical face-view orientation or a universal motherboard implementation beyond the documented header context.

Locator: Resolution table: motherboard-header pins 1–19

S828 · USB 3.0 Internal Connector and Cable Specification

Intel Corporation · Manufacturer / product-owner domain · inspected 2026-10-20 · due 2027-01-18

Within inspection window

Scoped support: Exact named pinout variant only; not capability or compatibility approval.

Not established / limitations: Source scope and unresolved evidence are preserved in the engineering variant.

Locator: Section 2.1, Figure 2-1 'USB3 ICC pin numbering' (pins 1-10 top row, 19-11 bottom row, key, over-current pin 10); Section 2.1, Table 2-1 'USB3 ICC A Pin Assignment and Description' (motherboard header); Section 2.1, Table 2-1 'USB3 ICC A Pin Assignment and Description', p. 9; Figure 2-1 'USB3 ICC pin numbering', p. 8; Section 2.1, Table 2-2 'USB3 ICC B Pin Assignment and Description' (daughter-card connector), continued on p.10; Section 2.1, Table 2-2 'USB3 ICC B Pin Assignment and Description', pp. 9-10; Section 2.1, Table 2-3 'Pin connection diagram and table' (motherboard pin n wired to daughter-card pin 20-n); Table 2-3 'Pin connection diagram and table', p. 10

Trace 6 claims to their source records

C263A · P263

Intel documents a front-panel USB 3.0 motherboard connector with populated pin positions numbered 1 through 19.

Claim scope: V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof.

Source links: S283 · Evidence trail → (private workspace)

C263B · P263

Claim scope: V44 logical assignment for the documented Intel header context; no physical face orientation or universal motherboard pin geometry is inferred.

Source links: S292 · Evidence trail → (private workspace)

C809L · P263

USB3 ICC A - motherboard header (Table 2-1): original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Claim scope: Pinout variant only; see comparison and per-contact status. Not fabrication approval.

Source links: S828 · Evidence trail → (private workspace)

C809M · P263

USB3 ICC B - front-panel daughter-card connector (Table 2-2): original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Claim scope: Pinout variant only; see comparison and per-contact status. Not fabrication approval.

Source links: S828 · Evidence trail → (private workspace)

C809N · P263

Intel USB3 ICC A (motherboard header): original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Claim scope: Pinout variant only; see comparison and per-contact status. Not fabrication approval.

Source links: S828 · Evidence trail → (private workspace)

C809O · P263

Intel USB3 ICC B (front-panel daughter-card header): original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Claim scope: Pinout variant only; see comparison and per-contact status. Not fabrication approval.

Source links: S828 · Evidence trail → (private workspace)

Prepare this page for review →Read the evidence method →

Recorded evidence only. An inspection date, publisher label, source link or generated packet is not independent technical review, hardware testing, fabrication approval or a compatibility verdict.