The useful distinction
Which end belongs at the controller, and which at the drives?
Identify the exact cable and the role at each end. Two assemblies can have the same end counts while documenting different uses. A board connector is a separate component. C236E · C236F · C236C
Cable or component: documented role and remaining check| Check | Documented distinction | What this does not establish |
|---|
| Controller to drives | Documented distinctionSAS8087S450 documents SFF-8087 to four SATA drive connections. C236E | What this does not establishThis identifies the named assembly, not arbitrary reverse use or SAS-drive support. |
|---|
| Backplane to controller | Documented distinctionSAS8087S4R50 describes a Mini-SAS backplane-to-controller/motherboard application. C236F | What this does not establishIts drive-oriented feature bullet conflicts with that role. Resolve the exact assembly before choosing it. |
|---|
| Board versus cable part | Documented distinctionG40MR36B22BCEU is a right-angle board component; its cage and electrical terminations are distinct. C236C · C236D | What this does not establishDo not order a board receptacle as a cable end or infer a footprint from the cable name. |
|---|
Before choosing the cable or component
- Write down controller, backplane and drive model names and their documented connector roles.
- Match the complete cable part number and its host/backplane/drive mapping; resolve conflicting vendor wording.
- Verify protocol, separate drive power and equipment instructions without guessing a pinout.
Original source statements and citation return points
SFF-8087 is an internal Mini-SAS connector form within the documented Mini-SAS interconnect family. [C236A]
Amphenol product G40MR36B22BCEU identifies a 36-contact Mini-SAS internal connector compliant with SFF-8087. [C236B]
Amphenol describes G40MR36B22BCEU as an internal right-angle board connector with a stainless right-key shell; its product description specifies a DIP cage and cap. [C236C]
The G40MR C2 family drawing table distinguishes SMT connector contacts from DIP cage mounting and separately lists keying options. [C236D]
StarTech specifies SAS8087S450 with one 36-pin SFF-8087 end and four 7-pin SATA ends for connecting up to four SATA drives to a SAS controller or backplane. [C236E]
The SAS8087S4R50 description and Applications identify a reverse cable from a Mini-SAS backplane to a SAS/SATA controller or motherboard. [C236F]
Molex 75783-0140 specifies two rows and 0.80 mm mating-interface pitch. The application specification identifies 75783 as internal iPass, and the manufacturer SFF-8087 cable drawing names 75783 as its right-angle mating family. [C236W]
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.
Not recorded: Positions / cavity span, Populated contacts, Dimensions / axis, Contact gender / arrangement, Coupling / latch, Shell / form, Recorded markings, View convention. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.
Recorded variant and source limits
- Position/contact count and any example-component pitch do not establish a universal pinout, cable construction or protocol capability.
- No fabrication dimensions or face-view pin locator is published unless explicitly stated.
Report a correction to these facts →Bounded facts, visible unknowns
Specifications and limits
A boundary, not an omission to guess around.Use the source-backed form or position count only for identification. Resolve ratings, protocol, direction, wiring, cable construction and exact device support from the relevant equipment and component documentation.
What is not established
This field note does not approve a connection, adapter, cable assembly, rewiring scheme or fabricated part. It intentionally omits unsupported pin assignments and mechanical tolerances.
G40MR: a board connector with a separate cage.
The product page identifies a stainless right-key variant. The family drawing distinguishes SMT contact termination from DIP cage mounting. It does not establish the exact full-suffix keyed face well enough for a new illustration in this release; that visual gap stays open.
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 ↑C236ASource checked · pending review
TE Connectivity identifies SFF-8087 within its internal Mini-SAS connector family.
TE Connectivity · Mini-SAS connectors ↗Locator: Mini-SAS overview
Access: public page. 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.
S240: full source recordInspect review dependencies → (private workspace)Claim scope: V39 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof.. Next review due 2027-01-03.
Back to first citation ↑C236BSource checked · pending review
Amphenol product G40MR36B22BCEU identifies a 36-contact Mini-SAS internal connector compliant with SFF-8087.
Amphenol Communications Solutions · Mini-SAS SFF-8087 example connector ↗Locator: Part specification detail
Access: public page. Engineering-reference scope only. V40 does not turn this source into fabrication approval, electrical safety approval, protocol guarantee, safe substitution or end-to-end compatibility proof.
S257: full source recordInspect review dependencies → (private workspace)Claim scope: V40 engineering-reference fact only; independent human review remains pending. This claim does not approve fabrication, rewiring, substitution, electrical safety, protocol support or end-to-end compatibility.. Next review due 2027-01-03.
Back to first citation ↑C236CSource checked · pending review
Amphenol describes G40MR36B22BCEU as an internal right-angle board connector with a stainless right-key shell; its product description specifies a DIP cage and cap.
Amphenol Communications Solutions · Mini-SAS SFF-8087 example connector ↗Locator: Part specification detail
Access: public page. Engineering-reference scope only. V40 does not turn this source into fabrication approval, electrical safety approval, protocol guarantee, safe substitution or end-to-end compatibility proof.
S257: full source recordInspect review dependencies → (private workspace)Claim scope: Exact product-page role and variant descriptors. Not a cable-end connector, a generic Mini-SAS substitution or an independently inspected keyed face.. Next review due 2027-01-12.
Back to first citation ↑C236DSource checked · pending review
The G40MR C2 family drawing table distinguishes SMT connector contacts from DIP cage mounting and separately lists keying options.
Amphenol Communications Solutions · G40MR family Mini-SAS board receptacle and cage drawing — C2 ↗Locator: Sheets 1 and 2 of 9: DIP cage family, key-option ordering code and mounting table. Sheet 3 compared as SMT-cage contrast. Revision C2 dated 2015-04-09.
Access: public pdf text. Exact G40MR36B22BCEU appears on the product page; full suffix and keyed mating-face geometry are not independently established by the generic family views. No new Mini-SAS illustration, mating dimensions, pin assignment, current-revision or replacement approval.
S638: full source recordInspect review dependencies → (private workspace)Claim scope: Sheets 1–2 of the 2015-04-09 family drawing. The DIP cage does not make every electrical contact a through-hole pin. Exact full-suffix face geometry and current revision remain unverified.. Next review due 2027-01-12.
Back to first citation ↑C236ESource checked · pending review
StarTech specifies SAS8087S450 with one 36-pin SFF-8087 end and four 7-pin SATA ends for connecting up to four SATA drives to a SAS controller or backplane.
StarTech.com · SAS8087S450 Mini-SAS to SATA cable — manufacturer datasheet ↗Locator: Pages 1–3 inspected as page images; product ID, description, Applications and Connector(s).
Access: public pdf text. No issue date established. No wiring map, SAS-drive support, throughput guarantee or end-to-end approval. The unusual Number of Conductors field is not adopted. Product dimensions are not mating dimensions.
S639: full source recordInspect review dependencies → (private workspace)Claim scope: Named cable role only. Not a universal breakout wiring map, SAS-drive approval or SATA power connection.. Next review due 2027-01-12.
Back to first citation ↑C236FSource checked · pending review
The SAS8087S4R50 description and Applications identify a reverse cable from a Mini-SAS backplane to a SAS/SATA controller or motherboard.
StarTech.com · SAS8087S4R50 reverse Mini-SAS cable — manufacturer datasheet ↗Locator: Pages 1–3 inspected as page images; product ID, description, Applications and Connector(s).
Access: public pdf text. The page-1 cost-effective feature bullet describes SATA drives and conflicts with the description/Applications role. The conflict is retained; no universal mapping or substitution approved. No issue date or exact pinout established.
S640: full source recordInspect review dependencies → (private workspace)Claim scope: Named intended application only. A conflicting feature bullet describes drives; that discrepancy is unresolved and not promoted into a compatibility verdict.. Next review due 2027-01-12.
Back to first citation ↑C236WSource checked · pending review
Molex 75783-0140 specifies two rows and 0.80 mm mating-interface pitch. The application specification identifies 75783 as internal iPass, and the manufacturer SFF-8087 cable drawing names 75783 as its right-angle mating family.
Molex · Molex 75783-0140 internal iPass receptacle physical specifications ↗Locator: PhysicalSpecifications exact75783-0140:36 circuits,Female,Number of Rows2,RightAngle,Pitch Mating Interface0.80 mm and separatePitch Termination Interface0.80 mm. Full official part specification read.
Access: public page. Current live page has Limited Information Available notice. No exact drawing pixels, tolerances, pin assignments or nominal geometry of allSFF-8087parts asserted.
S986: full source recordMolex · Molex AS-75783-001 internal iPass with shell application specification ↗Locator: Complete7-page PDF retrieved through official web; section1.0scope and2.1p2 explicitly75783/75784 internal cabling, referencesSD-75783R/A andSD-75784vertical. Text inspected; direct byte acquisition timed out, no source pixels.
Access: public pdf text. Exact named source and role only; no universal geometry, wiring, electrical compatibility or fabrication approval.
S987: full source recordMolex · Molex SD-79576-200 internal MiniSAS36 circuit cable sales drawing ↗Locator: Complete4-page PDF retrieved; p1title internal MiniSAS36CKT, notes3mates75783R/A and75784vertical, note4SFF-8087 mechanical/electrical requirement. Relevant source text read, no drawing pixels acquired.
Access: public pdf text. Exact named source and role only; no universal geometry, wiring, electrical compatibility or fabrication approval.
S988: full source recordInspect review dependencies → (private workspace)Claim scope: Exact Molex 75783-0140 female right-angle 36-circuit board receptacle; internal iPass and SFF-8087 cable mating relationships separately documented.. Next review due 2027-01-20.
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