FIELD GUIDESource-led reference
Port & Cable

Comparison topic

Internal PC connector comparisons

High-value internal PC power, storage and front-panel connector comparisons.

19curated comparisons
27referenced records
Internal SATA data versus eSATAExternal data cabling does not establish the device power arrangement.SATA 7-pin data connector · eSATA 7-pin data connector8-pin CPU power versus 8-pin PCIe auxiliary powerWhat does the PSU cable and motherboard/GPU manual call this connector? Pin count alone is not enough.8-pin +12 V CPU power connector (EPS12V form) · PCIe 8-pin auxiliary power connectorLegacy PCIe auxiliary power versus 12VHPWRIs this the older 2x3/2x4 family or the separate 12+4-contact 12VHPWR form?PCIe 6-pin auxiliary power connector · PCIe 8-pin auxiliary power connector · 12VHPWR 16-contact auxiliary power connectorSATA, Slimline SATA and Micro SATAWhich physical SATA-family variant does the exact device specify?SATA 7-pin data connector · Slimline SATA connector · Micro SATA connectorMini-SAS internal SFF-8087 versus Mini-SAS HD SFF-8643Is the internal storage connector legacy Mini-SAS SFF-8087 or Mini-SAS HD SFF-8643? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.Mini-SAS internal SFF-8087 connector · Mini-SAS HD internal SFF-8643 connectorMini-SAS external SFF-8088 versus Mini-SAS HD SFF-8644Is the external storage connector SFF-8088 or the higher-density SFF-8644 form? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.Mini-SAS external SFF-8088 connector · Mini-SAS HD external SFF-8644 connectorOCuLink versus SlimSASWhich compact cabled storage/PCIe connector family is documented by the host and cable? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.OCuLink SFF-8611 / SFF-8612 connector family · SlimSAS connector familyPCIe 8-pin, 12VHPWR and 12V-2x6 auxiliary powerWhich exact GPU auxiliary-power connector family does the PSU and device documentation require? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.PCIe 8-pin auxiliary power connector · 12VHPWR 16-contact auxiliary power connector · 12V-2x6 16-circuit PCIe power connectorPCIe x16 card edge versus MCIO cabled interconnectIs the host interface a card-edge slot or an MCIO/SFF-TA-1016 cabled interconnect family? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.PCI Express x16 164-position card-edge connector · MCIO / SFF-TA-1016 connector familyUSB 3.0 19-pin versus USB Key-A 20-pin front-panel headersWhich motherboard front-panel USB header form does the board and case cable specify? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.USB 3.0 front-panel 19-pin internal connector · USB 3.1 front-panel Key-A 20-pin headerPCIe x1 versus x4 card-edge connectorsIs the slot/form the 36-position x1 or 64-position x4 mechanical variant? Mechanical width does not establish PCIe generation or active lanes.PCI Express x1 36-position card-edge connector · PCI Express x4 64-position card-edge connectorPCIe x8 versus x16 card-edge connectorsIs the card-edge form x8/98-position or x16/164-position? Mechanical form does not establish generation, lane wiring or platform support.PCI Express x8 98-position card-edge connector · PCI Express x16 164-position card-edge connectorMini PCI Express/mSATA versus M.2Is the host using the older 52-position Mini PCIe/mSATA connector family or an M.2 keyed card-edge form? Similar internal-card roles do not make them physically or electrically interchangeable.Mini PCI Express / mSATA 52-position socket · M.2 card edge interfaceSATA data vs SATA powerSATA data and SATA power are separate connectors with different roles and contact counts. Sharing the SATA name does not make them substitutes.SATA 7-pin data connector · SATA 15-pin power connectorMini-SAS HD vs SlimSASMini-SAS HD and SlimSAS are different internal high-density connector families. Match the named SFF form and system documentation, not the general SAS label.Mini-SAS HD internal SFF-8643 connector · SlimSAS connector familyMini-SAS HD vs OCuLinkMini-SAS HD and OCuLink are different connector families used in high-speed internal links. Physical resemblance is not evidence of mating or protocol compatibility.Mini-SAS HD internal SFF-8643 connector · OCuLink SFF-8611 / SFF-8612 connector familyM.2 card edge vs SATA data connectorM.2 is a keyed module interface, not another name for the seven-pin SATA data connector. An M.2 module may use SATA, but its exact host support and physical connection still differ.M.2 card edge interface · SATA 7-pin data connectorM.2 card edge vs PCIe x4 add-in-card edgeSeparate an M.2 module from a PCIe expansion-card edge. A named adapter can connect particular endpoints, but the physical shape does not establish drive protocol, host lanes or boot support.M.2 card edge interface · PCI Express x4 64-position card-edge connectorInternal USB 2.0 vs HD Audio front-panel headersIntel’s Thin Mini-ITX examples use different absent-key positions (9 versus 8); a different NUC audio implementation also has another pitch. Never force a 2×5 plug by silhouette.Internal USB 2.0 dual-port header — keyed 2×5, pin 9 · HD Audio front-panel header — keyed 2×5 (Intel example)

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Discovery is not a compatibility verdict.

These discovery surfaces route and reorganize facts already represented in the atlas. They do not add electrical ratings, universal pinouts, measured tolerances, exact-device support, wiring approval or an end-to-end compatibility result.