FIELD GUIDESource-led reference

Side by side

OCuLink versus SlimSAS

Which compact cabled storage/PCIe connector family is documented by the host and cable?

Computer-generated illustration, not a photograph.
P240 · ConnectorOCuLink SFF-8611 / SFF-8612 connector family
Computer-generated illustration, not a photograph.
P197 · ConnectorSlimSAS connector family

How they differ

  • OCuLink SFF-8611 / SFF-8612 connector family Verify the OCuLink/SFF designation on both ends and distinguish it from SlimSAS and Mini-SAS families before selecting a cable.
  • SlimSAS connector family Record the exact SFF designation and lane count from the host, cable and device documentation.

Then askWhich compact cabled storage/PCIe connector family is documented by the host and cable?

At a glance

Source-scoped form facts; counts, variants and unknowns are distinct
FieldOCuLink SFF-8611 / SFF-8612 connector familySlimSAS connector family
TypeConnectorConnector
FamilyStorageStorage
Shaperectangularrectangular
Nominal contactsNot recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Positions / cavity spanNot recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Contact rows2S242Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: Molex Nano-Pitch I/O system. Dimensions are family-page configuration example with no exactpart suffix; root should retain that scope and not imply every4/8lane variant has this size.; 12mm mated connector+cable assembly height excluded from standalone geometry. Latch option is not proof of universal mating polarization.Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Connector roleNot recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Key distinctionOCuLink identity does not establish PCIe generation, lane count, bifurcation support or device compatibility.The family name does not identify one universal contact count or lane configuration.

Full evidence ledger and sources ↓

Illustrations are computer-generated with prior AI visual review; independent technical and rights review pending. A comparison is not a compatibility verdict.

This comparison stays within one evidence layer.

All selected records are Connector records. Similar layer does not mean compatible, interchangeable or safe to mate.

Families represented: Storage

The reference ledger

Read the same question across.

2 selected records · 13 fields
No score. No compatibility verdict.

On a narrow screen, scroll the table sideways or open the field-by-field reading view below. Illustrations are not a size comparison.

Comparison of selected field notes; source links accompany each documented specification
What you are comparing
OCuLink SFF-8611 / SFF-8612 connector family — original, not-to-scale identification schematic; drawing review pending
P240 / ConnectorOCuLink SFF-8611 / SFF-8612 connector family

Identification schematic · not to scale · drawing review pending

SlimSAS connector family — original, not-to-scale identification schematic; drawing review pending
P197 / ConnectorSlimSAS connector family

Identification schematic · not to scale · drawing review pending

LayerConnectorConnector
Key distinctionOCuLink identity does not establish PCIe generation, lane count, bifurcation support or device compatibility.The family name does not identify one universal contact count or lane configuration.
Nominal contactsNot recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Positions / cavity spanNot recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Populated contactsNot recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Contact rows2S242Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: Molex Nano-Pitch I/O system. Dimensions are family-page configuration example with no exactpart suffix; root should retain that scope and not imply every4/8lane variant has this size.; 12mm mated connector+cable assembly height excluded from standalone geometry. Latch option is not proof of universal mating polarization.Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Contact pitch0.5 mm X-direction interstitial contact-grid step, not uniform spacing within a row (Named Molex NanoPitch 173162/171982/171983 families)S989 · S990 · S991Current primary-source scoped values; named examples remain separate and unknowns are not inferred from illustrations. Named Molex NanoPitch series 173162/171982/171983 only, not every OCuLink part. The 0.50 mm X-direction interstitial contact grid is separate from spacing within a row and from PCB tails.0.6 mm published SlimSAS connector pitchS905Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: 207368 (4X straight-to-straight100ohm SAS3.0/4.0 cable assembly). Documented role: cable plug. Series-level scope; no complete assembly suffix or assumed dimensions. Old2019.04document read at official current URL; capability wording is variant-specific.
Dimensions / axis5 mm published system connector height; 23 mm published system connector width; 9 mm published system connector depthS242Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: Molex Nano-Pitch I/O system. Dimensions are family-page configuration example with no exactpart suffix; root should retain that scope and not imply every4/8lane variant has this size.; 12mm mated connector+cable assembly height excluded from standalone geometry. Latch option is not proof of universal mating polarization.Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Connector roleNot recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Coupling / latchCable-side passive or active latching optionsS242Not recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations. Named series only, not every family part: Molex Nano-Pitch I/O system. Dimensions are family-page configuration example with no exactpart suffix; root should retain that scope and not imply every4/8lane variant has this size.; 12mm mated connector+cable assembly height excluded from standalone geometry. Latch option is not proof of universal mating polarization.Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Keying / polarizationNot recordedPassive/active latch options describe retention, not an actual polarization feature. A mating key remains unestablished.Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Documented identificationOCuLink connector-family context for PCIe cabled interconnect applications.C240ASlimSAS family identification only; exact variant required.C197A
EvidenceC240A,C240W →
Independent review pending
C197A,C197B →
Independent review pending
Read field by field — no sideways scrolling

The same selected records, fields, values and source links as the table. Missing fields remain non-equivalent; no values are merged.

Layer

SlimSAS connector familyP197 / Connector
Connector

Key distinction

OCuLink SFF-8611 / SFF-8612 connector familyP240 / Connector
OCuLink identity does not establish PCIe generation, lane count, bifurcation support or device compatibility.
SlimSAS connector familyP197 / Connector
The family name does not identify one universal contact count or lane configuration.

Nominal contacts

OCuLink SFF-8611 / SFF-8612 connector familyP240 / Connector
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
SlimSAS connector familyP197 / Connector
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Positions / cavity span

OCuLink SFF-8611 / SFF-8612 connector familyP240 / Connector
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
SlimSAS connector familyP197 / Connector
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Populated contacts

OCuLink SFF-8611 / SFF-8612 connector familyP240 / Connector
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
SlimSAS connector familyP197 / Connector
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Contact rows

OCuLink SFF-8611 / SFF-8612 connector familyP240 / Connector
2S242Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: Molex Nano-Pitch I/O system. Dimensions are family-page configuration example with no exactpart suffix; root should retain that scope and not imply every4/8lane variant has this size.; 12mm mated connector+cable assembly height excluded from standalone geometry. Latch option is not proof of universal mating polarization.
SlimSAS connector familyP197 / Connector
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Contact pitch

OCuLink SFF-8611 / SFF-8612 connector familyP240 / Connector
0.5 mm X-direction interstitial contact-grid step, not uniform spacing within a row (Named Molex NanoPitch 173162/171982/171983 families)S989 · S990 · S991Current primary-source scoped values; named examples remain separate and unknowns are not inferred from illustrations. Named Molex NanoPitch series 173162/171982/171983 only, not every OCuLink part. The 0.50 mm X-direction interstitial contact grid is separate from spacing within a row and from PCB tails.
SlimSAS connector familyP197 / Connector
0.6 mm published SlimSAS connector pitchS905Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: 207368 (4X straight-to-straight100ohm SAS3.0/4.0 cable assembly). Documented role: cable plug. Series-level scope; no complete assembly suffix or assumed dimensions. Old2019.04document read at official current URL; capability wording is variant-specific.

Dimensions / axis

OCuLink SFF-8611 / SFF-8612 connector familyP240 / Connector
5 mm published system connector height; 23 mm published system connector width; 9 mm published system connector depthS242Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: Molex Nano-Pitch I/O system. Dimensions are family-page configuration example with no exactpart suffix; root should retain that scope and not imply every4/8lane variant has this size.; 12mm mated connector+cable assembly height excluded from standalone geometry. Latch option is not proof of universal mating polarization.
SlimSAS connector familyP197 / Connector
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Connector role

OCuLink SFF-8611 / SFF-8612 connector familyP240 / Connector
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
SlimSAS connector familyP197 / Connector
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Coupling / latch

OCuLink SFF-8611 / SFF-8612 connector familyP240 / Connector
Cable-side passive or active latching optionsS242Not recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations. Named series only, not every family part: Molex Nano-Pitch I/O system. Dimensions are family-page configuration example with no exactpart suffix; root should retain that scope and not imply every4/8lane variant has this size.; 12mm mated connector+cable assembly height excluded from standalone geometry. Latch option is not proof of universal mating polarization.
SlimSAS connector familyP197 / Connector
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Keying / polarization

OCuLink SFF-8611 / SFF-8612 connector familyP240 / Connector
Not recordedPassive/active latch options describe retention, not an actual polarization feature. A mating key remains unestablished.
SlimSAS connector familyP197 / Connector
Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Documented identification

OCuLink SFF-8611 / SFF-8612 connector familyP240 / Connector
OCuLink connector-family context for PCIe cabled interconnect applications.C240A
SlimSAS connector familyP197 / Connector
SlimSAS family identification only; exact variant required.C197A

Evidence

OCuLink SFF-8611 / SFF-8612 connector familyP240 / Connector
C240A,C240W →
Independent review pending
SlimSAS connector familyP197 / Connector
C197A,C197B →
Independent review pending

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Evidence behind this page

Scope first. Source second. Approval separate.

6 linked sources · 4 scoped claims · 0 sources with inspection/access flags.

Page scope: Evidence behind the compared records; the editorial comparison still needs separate review.

Assessment 2026-10-22 · earliest scheduled source review 2027-01-03. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 6 source scopes, access limits and dates

S200 · Serial ATA and SAS connector system

Molex · Manufacturer / product-owner domain · inspected 2026-10-05 · due 2027-01-03

Within inspection window

Scoped support: Identifies Serial ATA signal/power, combo, Micro SATA, Slimline SATA, SAS and SlimSAS connector families.

Not established / limitations: Identification/reference scope only. V36 does not convert this source into a universal pinout, fabrication drawing, electrical approval or end-to-end compatibility verdict.

Locator: Product-family overview

S242 · Nano-Pitch I/O connector system

Molex · Manufacturer / product-owner domain · inspected 2026-10-05 · due 2027-01-03

Within inspection window

Scoped support: Identifies Molex Nano-Pitch I/O as supporting PCIe OCuLink applications; V39 uses the source only to establish the OCuLink connector-family context.

Not established / limitations: Identification/reference scope only. V39 does not convert this source into a universal pinout, fabrication drawing, electrical approval, protocol guarantee or end-to-end compatibility verdict.

Locator: OCuLink / NPIO overview

S905 · SlimSAS cable assemblies 987652-0234

Molex · Manufacturer / product-owner domain · inspected 2026-10-22 · due 2027-01-20

Within inspection window

Scoped support: Current primary-document research for P197. Each normalized fact retains its exact part/family, role and document scope.

Not established / limitations: No independent technical review, hardware validation, specimen measurement or general interoperability approval. Exact scopes and unresolved fields remain controlling.

Locator: p.1 features; p.2 specifications and Ordering Information

S989 · Molex AS-173162-0001 NanoPitch I/O application specification

Molex · Manufacturer / product-owner domain · inspected 2026-10-22 · due 2027-01-20

Within inspection window

Scoped support: Named NanoPitch families only, not everyOCuLink component.

Not established / limitations: Grid projection is retained literally. It is not asserted as adjacent spacing within either contact row, row-to-row spacing or PCB tail pitch; exact geometry and pinout depend on part.

Locator: Complete21-page PDF retrieved; section2.1p4 explicitly0.5 mm contact spacing oriented as X-direction interstitial grid, named173162/171982/171983 families. p3scope andp5/6 distinguish PCB attachment and mating-specific drawings. Relevant sections read; no source pixels.

S990 · Molex PS-173162-0001 NanoPitch I/O product specification

Molex · Manufacturer / product-owner domain · inspected 2026-10-22 · due 2027-01-20

Within inspection window

Scoped support: Named family and mechanical standard context only.

Not established / limitations: Source says pin assignments vary by cable assembly and require exact sales drawing. No common pinout or end-to-end capability asserted.

Locator: Complete24-page PDF retrieved; p5scope0.50mmcenterline, connector173162/171982/171983 and plug/cable100436/100203/100153/200226/200227; p6industrydocsOCuLink 1.0,SFF-8611,SFF-8612. Relevant text read, no source pixels.

S991 · Molex SD-100153-1000 NPIO right-angle to straight cable drawing

Molex · Manufacturer / product-owner domain · inspected 2026-10-22 · due 2027-01-20

Within inspection window

Scoped support: Specific1001531000 cable-family standard binding only; no common wiring imported.

Not established / limitations: Exact named source and role only; no universal geometry, wiring, electrical compatibility or fabrication approval.

Locator: Complete3-page PDF retrieved; p1note2plug mates173162receptacles; exact1001531000 row statesSFF-8611mechanical andPCIExpressOCuLink 1.0electrical specification. Exception rows0994-0998 retained separately. No source pixels inspected.

Trace 4 claims to their source records

C197A · P197

Molex lists SlimSAS as a distinct storage connector family alongside Serial ATA and SAS products.

Claim scope: V36 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction or end-to-end compatibility proof.

Source links: S200 · Evidence trail → (private workspace)

C197B · P197

Exact source example P197: construction: 4X and8X straight/right-angle cable-assembly variants; exact series must control impedance/protocol.. current max a: 0.5. voltage max vdc: 30. durability min cycles: 250. Series-level scope; no complete assembly suffix or assumed dimensions. Old2019.04document read at official current URL; capability wording is variant-specific. No physical compatibility, pin map or hardware validation is established.

Claim scope: Exact named component/family technical construction reference from the full current primary document; geometry, ratings and implementation limits do not transfer to other variants.

Source links: S905 · Evidence trail → (private workspace)

C240A · P240

Molex identifies its Nano-Pitch I/O family as supporting PCIe OCuLink applications, establishing the OCuLink connector-family context.

Claim scope: V39 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof.

Source links: S242 · Evidence trail → (private workspace)

C240W · P240

Molex defines a 0.50 mm X-direction interstitial contact grid for its named NanoPitch families. Separate product and cable documents identify 173162 receptacles and the 1001531000 SFF-8611/OCuLink cable context. The grid is separate from spacing within a contact row.

Claim scope: Named Molex NanoPitch series 173162/171982/171983 only, not every OCuLink part. The 0.50 mm X-direction interstitial contact grid is separate from spacing within a row and from PCB tails.

Source links: S989 · S990 · S991 · 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.