FIELD GUIDESource-led reference

P291 / Storage / Connector

SFF-TA-1002 1C 56-contact connector

The SFF-TA-1002 1C connector variation is documented with 56 contacts and up to 18 differential data pairs.

Also called SFF-TA-1002 1C EDSFF 1C 1C 56-contact 1C connector

The 1C mechanical/contact form does not by itself establish an EDSFF device size, protocol generation, lane use or system compatibility.

Look for

Confirm the SFF-TA-1002 1C variant and 56-contact identity from the system or component documentation before inferring an EDSFF application.

Claim inspection dates: 2026-10-06 · Independent review pending

The useful distinction

Recognize it. Then verify it.

The SFF-TA-1002 1C connector variation is documented with 56 contacts and up to 18 differential data pairs. [C291A]

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 contacts56S332Source-backed nominal position/contact count for identification: 56. Not a pinout or manufacturing drawing.
Contact rows2S912Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Rev1.6a 1C straight fixed receptacle; not right-angle/straddle variants. Documented role: socket. Standard drawing limits, not a measured specimen or exact manufacturer part.; A1 indicator shape is not transcribed as literal lettering. Manufacturer logo/series/part markings remain unknown.; Preserve existing application pinout records; mechanical drawing does not establish electrical usage.
Contact pitch0.6 mm longitudinal adjacent mating contact/pad centersS912Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Rev1.6a 1C straight fixed receptacle; not right-angle/straddle variants. Documented role: socket. Standard drawing limits, not a measured specimen or exact manufacturer part.; A1 indicator shape is not transcribed as literal lettering. Manufacturer logo/series/part markings remain unknown.; Preserve existing application pinout records; mechanical drawing does not establish electrical usage.
Dimensions / axis24.03 mm maximum overall longitudinal span; 6.15 mm maximum transverse body depth; 9.25 mm maximum height from SMT lead plane to housing topS912 · S912Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Rev1.6a 1C straight fixed receptacle; not right-angle/straddle variants. Documented role: socket. Standard drawing limits, not a measured specimen or exact manufacturer part.; A1 indicator shape is not transcribed as literal lettering. Manufacturer logo/series/part markings remain unknown.; Preserve existing application pinout records; mechanical drawing does not establish electrical usage.
Connector rolecard-edge; socketS332 · S356 · S912Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. SFF-TA-1002 card-edge connector variation Rev1.6a 1C straight fixed receptacle; not right-angle/straddle variants. Documented role: socket. Standard drawing limits, not a measured specimen or exact manufacturer part.; A1 indicator shape is not transcribed as literal lettering. Manufacturer logo/series/part markings remain unknown.; Preserve existing application pinout records; mechanical drawing does not establish electrical usage.
Recorded markingsPosition A1 identification mark required by drawingS912Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Rev1.6a 1C straight fixed receptacle; not right-angle/straddle variants. Documented role: socket. Standard drawing limits, not a measured specimen or exact manufacturer part.; A1 indicator shape is not transcribed as literal lettering. Manufacturer logo/series/part markings remain unknown.; Preserve existing application pinout records; mechanical drawing does not establish electrical usage.
View conventionMating-face view: B row above A row; position1 at right in the published straight-receptacle drawing.S912Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Rev1.6a 1C straight fixed receptacle; not right-angle/straddle variants. Documented role: socket. Standard drawing limits, not a measured specimen or exact manufacturer part.; A1 indicator shape is not transcribed as literal lettering. Manufacturer logo/series/part markings remain unknown.; Preserve existing application pinout records; mechanical drawing does not establish electrical usage.

Not recorded: Positions / cavity span, Populated contacts, Contact gender / arrangement, Mounting, Coupling / latch, Keying / polarization, Shell / form, Manufacturer, Series, Exact part / implementation. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.

Recorded variant and source limits
  • EDSFF, OCP, Gen-Z and other implementation contexts can use different logical assignments over related connector variations.
  • Connector variation and pair capacity do not establish active lane count, protocol generation, power delivery, sideband wiring, host support or fabrication dimensions.
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Bounded facts, visible unknowns

Specifications and limits

SFF-TA-1002 1C 56-contact connector facts and limitations
Documented identificationSNIA REF-TA-1012 identifies the SFF-TA-1002 1C connector variation as a 56-contact connector with up to 18 differential pairs of data signals. [C291A]
Mechanical dimensionsNo independently reviewed mechanical drawing in V50; do not use this page for fabrication, fit testing or tolerance work.
Engineering pinoutSource-checked engineering profile available; independent review pending. Open engineering profile →
Verified device listNot included. Check exact device and accessory documentation.
A boundary, not an omission to guess around.

Use only the source-backed family, role or position count for identification. Resolve electrical ratings, protocol generation, lane wiring, signal assignment, cable construction and exact device support from the relevant equipment and component documentation.

Before you connect

What to check

  1. Identify the exact connector family and variant from the equipment or component documentation.
  2. Keep physical form, contact count, protocol, electrical rating and device support as separate facts.
  3. Do not force, rewire, adapt or install from this recognition record; resolve the remaining requirements first.
Trace a supported connection class →

What is not established

This field note does not approve a connection, adapter, cable assembly, rewiring scheme, energized-work procedure or fabricated part. It intentionally omits unsupported pin assignments and mechanical tolerances.

Your next step

Move from the form to the requirement.

The source trail

Evidence for this page

AI-assisted inspection is not independent engineering review. Source scope and access limitations are disclosed below. Procedural checklists are editorial requirements, not hardware measurements.

Back to first citation ↑
C291ASource checked · pending review

SNIA REF-TA-1012 identifies the SFF-TA-1002 1C connector variation as a 56-contact connector with up to 18 differential pairs of data signals.

SNIA · SNIA REF-TA-1012 SFF-TA-1002 connector variations — 1C ↗

Locator: Section 3.1 overview, 1C connector variation
Access: public pdf text. Source-backed identification does not establish universal wiring, protocol generation, device compatibility, safe installation or fabrication approval.

S332: full source recordInspect review dependencies → (private workspace)

Claim scope: V50 identification fact only; no wiring, protocol compatibility, installation or fabrication approval is inferred.. Next review due 2027-01-04.

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Discovery Quality III

Questions this record helps answer

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Add to discovery trayRecord an unsaved candidate (private workspace)

Compare look-alikes: SFF-TA-1002 1C versus 2C connectors

Candidate selection does not confirm the identity or capabilities of your physical item.

Evidence behind this page

Scope first. Source second. Approval separate.

1 linked sources · 1 scoped claims · 0 sources with inspection/access flags.

Page scope: catalogue_expansion_v50

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 1 source scopes, access limits and dates

S332 · SNIA REF-TA-1012 SFF-TA-1002 connector variations — 1C

SNIA · Standards-organization domain · inspected 2026-10-06 · due 2027-01-04

Within inspection window

Scoped support: Draft REF-TA-1012 Rev 0.0.2 identification reference for the SFF-TA-1002 1C connector variation; used only for the stated contact-count/form fact.

Not established / limitations: Source-backed identification does not establish universal wiring, protocol generation, device compatibility, safe installation or fabrication approval.

Locator: Section 3.1 overview, 1C connector variation

Trace 1 claims to their source records

C291A · P291

SNIA REF-TA-1012 identifies the SFF-TA-1002 1C connector variation as a 56-contact connector with up to 18 differential pairs of data signals.

Claim scope: V50 identification fact only; no wiring, protocol compatibility, installation or fabrication approval is inferred.

Source links: S332 · Evidence trail → (private workspace)

Prepare this page for review → (private workspace)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.