P029 / Storage / Connector
SATA data cables use a seven-contact connector distinct from the separate power connection.
Also called SATA data SATA 7 pin Serial ATA
A data connector is not a power connector.
Look for the narrow, keyed data connection. Read the device service guidance before opening equipment; the atlas provides recognition, not a repair procedure.
Claim inspection dates: 2026-10-01, 2026-10-08, 2026-10-11 · Independent review pending
Three-quarter view Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.
Mating face Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.
Fitted in place Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.
Recognition drawing Original schematic, not to scale. Drawing review pending.
Field answer / P029 · Source-checked, human review pending
First answerSATA data cables use a seven-contact connector distinct from the separate power connection.
Next observation: Trace the host data path and the power feed independently, then read the exact controller, enclosure and drive requirements.
The seven-contact SATA data interface is not the separate SATA power connection. A named USB-to-SATA product or motherboard storage limitation is not a blanket promise that other enclosures, drives or ports will work.
These are the existing, individually scoped observations—not fresh source inspections, a universal pinout, approved geometry or a device-specific compatibility verdict.
C029A / canonical evidence anchor — SATA data cables use a seven-contact connector distinct from the separate power connection.
Consumer identification / documented standard or product class only · source checked; independent sign-off pending.
C029C / canonical evidence anchor — The PRIME B550-PLUS AC-HES manual states that populating M.2_2 disables the SATA6G_56 ports. Its condition is not limited in that note to installing a SATA-mode M.2 SSD.
E18712 printed vii, exact board, M.2_2 and SATA6G_56 labels; not a rule for other boards or other slots. · source checked; independent sign-off pending.
C029D / canonical evidence anchor — StarTech USB3S2SAT3CB supports 2.5-inch SATA SSD/HDD use and explicitly excludes 3.5-inch hard drives.
Named USB-to-SATA adapter. Do not generalize this product limitation to every powered SATA dock or infer SAS support. · source checked; independent sign-off pending.
Shape, plug/socket view, contact roles and exact model capability must be checked separately. Review source authority and publication status ↓
Image inspection / P029
1 registered view for this reference. Different part examples are not automatically mates; all remain not to scale and independently unapproved.
(private workspace)P029 / Inherited recognition study
SATA 7-pin data connector
Drive-facing female cable-plug opening concept; qualitative L-shaped key · Cable plug / cable end
Not to scale. Technical and rights review pending.
Inspect view & provenance (private workspace)Application notes / Storage / P029
Read the drive label and the complete adapter model. A SATA data connector is not the whole drive connection; the USB3S2SAT3CB example also has a documented drive-size limit.
Identify first
Separate the data interface from power and the drive form factor.
Still unresolved
An unknown drive’s interface, power requirement, health and file-system access remain unresolved.
Explicit source exclusion · named example only
No for this adapter: its datasheet excludes 3.5-inch drives.
Boundary. Do not turn a product-specific exclusion into a rule about every SATA dock.
Next check. Find an adapter explicitly supporting the exact drive and its power needs.
S492 · C029D (private workspace)
Not established · named example only
Unknown from these sources: the named SATA adapter does not establish a SAS-capable path.
Boundary. Missing support is not relabelled as a tested failure.
Next check. Obtain explicit controller/adapter support for the exact SAS disk.
S201 · S492 · C196A (private workspace) · C029D (private workspace)
C029A (private workspace) — SATA data cables use a seven-contact connector distinct from the separate power connection.
Consumer identification / documented standard or product class only
C029D (private workspace) — StarTech USB3S2SAT3CB supports 2.5-inch SATA SSD/HDD use and explicitly excludes 3.5-inch hard drives.
Named USB-to-SATA adapter. Do not generalize this product limitation to every powered SATA dock or infer SAS support.
Source interpretation is not independent engineering review, hardware testing, wiring advice or a public-release approval.
The documented SATA 7-contact cable/header belongs to the serial data route from controller to drive. A separately sourced supply cable powers the drive through its distinct wider connector or a product-qualified combination. A plugged-in data cable alone is not evidence that the drive is energized, detected or bootable.
Confusing SATA data and power, or assuming a passive cable changes an NVMe/M.2 device into SATA.
Full technical reading, sources and related identities →Claim-specific evidence remains in the canonical record. Concept diagrams do not show any safe wiring or mechanical mating geometry.
Flagship atlas STORAGE / CONNECTIONS
SATA data and power are different connectors. If a SATA drive disappears after installing an M.2 card, check the motherboard’s shared-resource rules before replacing a cable.
A SATA data connector has seven contacts and is not the drive’s power connector. Evidence: C029A
The SATA 15-position power form is distinct; its correct PSU or system wiring is a separate requirement. Evidence: C194A
The ASUS PRIME B550-PLUS AC-HES manual states M.2_2 use disables its SATA6G_56 ports. Evidence: C029C
That disabling rule belongs to the named ASUS board, not to every motherboard with an M.2 slot. Evidence: C029C
A dark/missing drive after an SSD upgrade is not proof that the 7-contact SATA data cable is defective.
This is an original editorial decision study tied to existing source-checked claims. The following source inspections have not been renewed by this new page presentation, and none is independent engineering or model-by-model qualification.
Unresolved: Actual device fit, required physical tolerances, pinouts, negotiations, electrical safety and hardware interoperability still require the identified manufacturer's documentation and any necessary independent review.
Flagship reference
Start with the answer. Follow the real distinction, then the source-scoped next check. All evidence dates and publication blockers remain unchanged.
V102Q08 Practical reference
Short answer Not necessarily. One ASUS PRIME B550-PLUS AC-HES motherboard manual explicitly states that using its M.2_2 slot disables SATA6G_56 ports. That is a named-board resource-sharing rule, not a universal M.2 behavior.
| What you are checking | What the cited evidence establishes |
|---|---|
| Seven-contact SATA cable | Data connection, separate from drive power |
| ASUS PRIME B550-PLUS AC-HES M.2_2 | Manufacturer documents a SATA-port disabling condition |
| Other boards and slots | Need their own port-sharing map; this ASUS rule cannot be copied |
Still unresolved: The rule does not diagnose a drive, prove a failed cable, or establish all motherboards’ M.2/SATA sharing.
Existing evidence claims: C029A · C029C · C030F · C030G. These are editorial field answers over inherited source records, not newly approved specifications.
Neither the source inspection dates nor the evidence dataset has been refreshed. No physical tests, exact-device compatibility approval, pinout or fabrication geometry is implied.
Visual atlas / P029 / 2026
What to look for
Narrow seven-position data family
Positions are named, not drawn as electrical contacts; sizes and key tolerances are unmeasured.
Both are separately keyed connectors. Confirm drive, cable and power-supply implementation before assembly.
No fabrication dimensions, conductor routing, guaranteed fit or device approval. For electrical, power and optical interfaces, follow the original equipment instructions.
Uses previously recorded V112 manufacturer claim/source inspections; October 2026 supplementary public-source spot checks are documented separately, not treated as a refreshed approval.
Original Port & Cable interpretive vector, no third-party photo, copied CAD, logo or vendor drawing. Third-party product photos, logos and source drawings are not redistributed. No independent technical or rights certification is claimed.
Original claim identifiers: C029A (private workspace) · C029C (private workspace). Legacy evidence dates and rights assessments remain as recorded.
The useful distinction
SATA data cables use a seven-contact connector distinct from the separate power connection. [C029A]
The PRIME B550-PLUS AC-HES manual states that populating M.2_2 disables the SATA6G_56 ports. Its condition is not limited in that note to installing a SATA-mode M.2 SSD. [C029C]
StarTech USB3S2SAT3CB supports 2.5-inch SATA SSD/HDD use and explicitly excludes 3.5-inch hard drives. [C029D]
PC internals · a documented check
Check the storage-port sharing rule as well as the separate data and power paths. On the specific ASUS PRIME B550-PLUS AC-HES, populating M.2_2 disables SATA6G_56. That example is not a rule for every motherboard. C029A · C029C · C194A
| Check | Documented distinction | Boundary |
|---|---|---|
| Data path | The SATA data connector has seven contacts. C029A | It does not replace the separate drive-power connection. |
| Power path | The drive-side SATA power form has fifteen positions. C194A · C194B | A data-only lead is not a power feed. |
| Named board example | PRIME B550-PLUS AC-HES: populated M.2_2 disables SATA6G_56. C029C | The manual’s note is not limited to SATA-mode M.2 drives; do not narrow it silently. |
| A USB adapter instead? | StarTech USB3S2SAT3CB is scoped to 2.5-inch SATA drives and excludes 3.5-inch HDDs. C029D | A SATA-shaped adapter is not a general drive-power solution. |
Keep this limit: Do not move cables while powered as a troubleshooting shortcut. Follow the equipment’s service instructions. C030E
Separate the narrow SATA data connection from device power and host resource limits.
| Nominal contacts | 7S032 · S193Serial ATA data connector reference; nominal engineering count, not automatically positions, population or a device wiring map. Serial ATA data connector reference |
|---|---|
| Positions / cavity span | 7 (Claim C029B)S193Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Named product example only; contact count plus example pitch, excluding full SATA pin assignment and mating tolerances |
| Populated contacts | 7 (0678005021)S193Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example 0678005021: Seven-circuit Serial ATA PCB header. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. No physical wiring layout is reconstructed from product attributes; manufacturer labels online information limited. |
| Connector role | Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations. |
| Contact rows | 1 (0678005021)S193Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example 0678005021: Seven-circuit Serial ATA PCB header. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. No physical wiring layout is reconstructed from product attributes; manufacturer labels online information limited. |
|---|---|
| Contact pitch | 1.27 mm Example product pitch (Recorded example component); 1.27 mm Source-described pitch / centerline (Claim C029B)S193Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. example_component; Serial ATA data connector reference Named product example only; contact count plus example pitch, excluding full SATA pin assignment and mating tolerances |
| Dimensions / axis | Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations. |
| Coupling / latch | Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations. |
| Keying / polarization | manufacturer reports keyed and polarized to mating part (0678005021)S193Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example 0678005021: Seven-circuit Serial ATA PCB header. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. No physical wiring layout is reconstructed from product attributes; manufacturer labels online information limited. |
| View convention | Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations. |
| Contact gender / arrangement | Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations. |
| Mounting | vertical surface-mount PCB connector (0678005021)S193Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example 0678005021: Seven-circuit Serial ATA PCB header. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. No physical wiring layout is reconstructed from product attributes; manufacturer labels online information limited. |
| Shell / form | Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations. |
| Manufacturer | Molex (0678005021)S193Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example 0678005021: Seven-circuit Serial ATA PCB header. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. No physical wiring layout is reconstructed from product attributes; manufacturer labels online information limited. |
| Series | Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations. |
| Exact part / implementation | 0678005021 (0678005021)S193Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example 0678005021: Seven-circuit Serial ATA PCB header. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. No physical wiring layout is reconstructed from product attributes; manufacturer labels online information limited. |
| Recorded markings | Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations. |
Keep this limit: The cited ASUS board’s M.2 population condition disables particular SATA ports; do not generalize it to every board. S429
Check the drive’s data and power requirements and the exact host’s shared-port notes.
Existing source inspection and AI review remain distinct from independent technical review. A matching form does not establish a safe connection.
Bounded facts, visible unknowns
| Function covered | SATA data connector [C029A] |
|---|---|
| Contacts | 7; no pin assignment provided [C029A] |
| Exact-board resource sharing | AC-HES example: populating M.2_2 disables SATA6G_56, not every SATA connector. [C029C] |
| Mechanical dimensions | No independently reviewed mechanical drawing in this release; do not use this page for fabrication. |
| Engineering pinout | Source-checked engineering profile available; independent review pending. Open engineering profile → |
| Verified device list | Not included. Check exact device and accessory documentation. |
This record is an identification starting point. It does not provide measured mating tolerances, electrical approval, or a list of verified device models. Use the original device and accessory documentation to resolve the remaining requirements.
Before you connect
Pins & wiring
Choose the exact wiring. Pin numbers follow its stated view; a schematic does not establish physical positions. Check your exact device before wiring.
Read the exact motherboard’s resource-sharing note before troubleshooting a cable. The AC-HES example disables SATA6G_56 when M.2_2 is populated; that condition must not be generalized to all motherboards.
Your next step
The source trail
AI-assisted inspection is not independent engineering review. Source scope and access limitations are disclosed below. Procedural checklists are editorial requirements, not hardware measurements.
SATA data cables use a seven-contact connector distinct from the separate power connection.
StarTech.com · SATA18 data cable ↗S032: full source recordInspect review dependencies → (private workspace)The PRIME B550-PLUS AC-HES manual states that populating M.2_2 disables the SATA6G_56 ports. Its condition is not limited in that note to installing a SATA-mode M.2 SSD.
ASUS · PRIME B550-PLUS AC-HES User’s Manual ↗S429: full source recordInspect review dependencies → (private workspace)StarTech USB3S2SAT3CB supports 2.5-inch SATA SSD/HDD use and explicitly excludes 3.5-inch hard drives.
StarTech.com · USB3S2SAT3CB USB to SATA adapter datasheet ↗S492: full source recordInspect review dependencies → (private workspace)Follow the connection
M.2 is a form-factor family; NVMe describes a different layer.
Open field noteCheck the slot specification, not just the notch.
Open field noteUse shape to narrow the candidates, then use documentation to establish function.
Open field noteCommon questions
Compare look-alikes: Internal SATA data versus eSATA · SATA, Slimline SATA and Micro SATA
Candidate selection does not confirm the identity or capabilities of your physical item.
Use this reference
Storage & media / Unconfirmed candidate
Keep the depicted interface role separate, then consult the device and cable assembly documentation.
P029 reference · P194 reference · Inspect named view (private workspace)
No wiring assignment or power connection is inferred from this illustration.
