Compare MCIO, OCuLink, EDSFF, U.2, Slim SAS, Mini SAS, and PCIe cable assemblies for servers, NVMe storage, eGPU, and data center projects. Share connector A/B, PCIe generation, length, and quantity for a quote.
Use the interface and application together when selecting a PCIe cable assembly. Each path below leads to a relevant product family and quote-ready model.
MCIO x4, x8 and x16 cable assemblies for server, NVMe and high-density PCIe routing.
Explore MCIO cables and adapter cardsOCuLink 4i and 8i cable paths for eGPU docks, compact PCs, servers and NVMe expansion.
View OCuLink SFF-8611 cable modelPCIe 5.0 MCIO-to-EDSFF assemblies for E1.S, E1.L, E3.S and E3.L enterprise SSD projects.
View MCIO to EDSFF cable modelUse these paths when a standard model is close but the project needs a specific length, connector combination, routing direction or storage form factor.
Discuss MCIO x4, x8 or x16 assemblies with PCIe generation, cable length, shielding, lane count and quantity requirements.
Open MCIO supplier pagePrepare the connector path, lane count, PCIe generation, target length and mechanical routing details for a quote-ready request.
Open the MCIO RFQ guideReview EDSFF cable terminology and confirm E1.S, E1.L, E3.S or E3.L device requirements before requesting a quote.
Read the EDSFF cable guideSend connector A/B, PCIe generation, target length, quantity, country and application for B2B matching.
Request a custom quoteMatch the connector family to the system application before comparing individual models. The same PCIe generation can support very different cable paths.
| Buyer need | Interface terms to confirm | Recommended path |
|---|---|---|
| Server or storage backplane link | MCIO x4, x8 or x16; PCIe 5.0/6.0; length and routing | MCIO cable assemblies |
| E1.S or E3.S NVMe storage | MCIO-to-EDSFF, E1.S/E1.L/E3.S/E3.L, power and lane count | EDSFF cable solutions |
| eGPU, GPU dock or compact workstation | OCuLink SFF-8611 4i/8i, SFF-8612 adapter side, cable length | OCuLink cable guide |
| U.2 NVMe or RAID/HBA integration | SFF-8639, SFF-8654, Mini SAS, SATA power and controller layout | NVMe adapter cards |
PCIe 6.0 MCIO x8 male to female extension cable for high-bandwidth server, storage, workstation, and validation projects with up to 256 Gbps support.
SFF-8643 to SFF-8639 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects.
SAS 2.0 MiniSAS SFF-8087 to Mini SAS SFF-8087 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 6 Gbps support.
SAS 2.0 Mini SAS SFF-8087 to SATA engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 6 Gbps support.
PCIe 5.0 MCIO x4 to EDSFF- engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 32 GT/s support.
PCIe 5.0 MCIO x8 to MCIO x8 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 256 Gbps, 32 GT/s support.
PCIe 5.0 MCIO 4 to MCIO x4 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 128 Gbps, 32 GT/s support.
PCIe 6.0 MCIO x8 to MCIO 8 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 512 Gbps support.
PCIe 5.0 MCIO x16 to MCIO 16 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 512 Gbps, 32 GT/s support.
PCIe 5.0 MCIOx8 to Slim SAS SFF-8654 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 32 GT/s support.
PCIe 5.0 MCIO x4 to SFF-8639 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 256 Gbps, 128 Gbps support.
PCIe 5.0 MCIO x8 to EDSFF- engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 32 GT/s support.
PCIe 5.0 MCIO x8 to MCIO x4 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 256 Gbps, 32 GT/s support.
PCIe 5.0 MCIO x8 to OCuLink SFF-8611 4i engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 32 GT/s support.
PCIe 5.0 MCIO x8 to SFF-8639 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 32 GT/s support.
PCIe 4.0 MCIO x8 to SFF-8639 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 16 GT/s support.
PCIe 4.0 M.2 M-Key to OCuLink SFF-8612 / SFF-8611 4i engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 64 Gbps support.
PCIe 5.0 M.2 to SFF-8639 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 128 Gbps support.
PCIe 4.0 M.2 to SFF-8639 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 64 Gbps support.
PCIe 4.0 OCuLink SFF-8611 4i to OCuLink SFF-8611 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 16 GT/s support.
PCIe 4.0 OCuLink SFF-8611 8i to OCuLink SFF-8611 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 16 GT/s support.
PCIe 4.0 OCuLink SFF-8611 4i to OCuLink SFF-8611 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 16 GT/s support.
PCIe 4.0 OCuLink SFF-8611 4i to OCuLink SFF-8611 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 64 Gbps support.
PCIe 4.0 OCuLink SFF-8611 to Mini SAS SFF-8087 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 16 GT/s support.
PCIe 4.0 OCuLink SFF-8611 to SFF-8639 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 16 GT/s support.
PCIe 4.0 SFF-8654 to SFF-8639 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 16 GT/s support.
PCIe 4.0 Slim SAS SFF-8654 to SATA III engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 6 Gbps support.
PCIe 5.0 M.2 to EDSFF- engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 128 Gbps, 32 GT/s support.
PCIe 5.0 PCIex16 to PCIe x16 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 32 GT/s support.
PCIe 4.0 PCIe x16 to PCIe x1 engineered for stable high-speed connectivity in servers, storage systems, workstations, and integration projects with 16 GT/s support.
| Model | Product | Interface | Speed / Protocol | Compatibility |
|---|---|---|---|---|
| LLS-CB-1HA1UT-01 | LetLinkSo Mini SAS HD SFF-8643 to U.2 SFF-8639 NVMe SSD Cable with 15 Pin SATA Power | SFF-8643 | High-Speed Cable | servers, NVMe SSDs, RAID / HBA cards |
| LLS-CB-1MA1MA-01 | LetLinkSo MiniSAS SFF-8087 to SFF-8087 Cable | MiniSAS SFF-8087 | 6 Gbps | servers, RAID / HBA cards |
| LLS-CB-1MA4SA-01 | LetLinkSo Mini SAS to SATA Cable SFF-8087 to 4 SATA Cable for SSD RAID Controller PCIe HBA Card | Mini SAS SFF-8087 | 6 Gbps | RAID / HBA cards |
| LLS-CB-1MC1ED-01 | LetLinkSo PCIe 5.0 MCIO x4 to EDSFF 1C Cable for E1.S E1.L E3.S E3.L SSD with 15P Power | MCIO x4 | 32 GT/s | servers |
| LLS-CB-1MC1MC-01 | LetLinkSo PCIe Gen5 MCIO 8i Cable, MCIO x8 to MCIO x8 Cable | MCIO x8 | 256 Gbps, 32 GT/s | servers |
| LLS-CB-1MC1MC-02 | LetLinkSo PCIe 5.0 MCIO 4i to MCIO x4 Cable Straight Male SFF-TA-1016 38pin | MCIO 4 | 128 Gbps, 32 GT/s | servers |
| LLS-CB-1MC1MC-03 | LetLinkSo PCIe Gen6 MCIO x8 to MCIO 8i Cable | MCIO x8 | 512 Gbps | servers |
| LLS-CB-1MC1MC-04 | LetLinkSo PCIe 5.0 MCIO 124-Pin x16 Cable (Male to Male), Gen5 32GT/s High-Speed Interconnect for Server Motherboard & NVMe Expansion | MCIO x16 | 512 Gbps, 32 GT/s | servers, NVMe SSDs |
| LLS-CB-1MC1SS-02 | LetLinkSo PCIe 5.0 MCIOx8 74Pin to Slim SAS SFF-8654 8i Cable for Server Backplane | MCIOx8 | 32 GT/s | servers, RAID / HBA cards |
| LLS-CB-1MC1UT-01 | LetLinkSo PCIe 5.0 MCIO x4 to U.2 SFF-8639 Cable for NVMe SSD with 15Pin Power | MCIO x4 | 256 Gbps, 128 Gbps | servers, NVMe SSDs, network switches |
| LLS-CB-1MC2ED-01 | LetLinkSo PCIe 5.0 MCIO x8 to 2 EDSFF E1 E3 Cable for E1.S E1.L E3.S E3.L SSD with 15P Power | MCIO x8 | 32 GT/s | servers |
| LLS-CB-1MC2MC-01 | LetLinkSo PCIe 5.0 MCIO x8 to 2 MCIO x4 Cable, 8i to 4i Male Straight | MCIO x8 | 256 Gbps, 32 GT/s | servers |
| LLS-CB-1MC2OC-01 | LetLinkSo PCIe 5.0 MCIO x8 to Dual Oculink Cable, MCIO to Oculink SFF-8611 4i Cable | MCIO x8 | 32 GT/s | servers |
| LLS-CB-1MC2UT-01 | LetLinkSo PCIe 5.0 MCIO x8 to 2 x SFF-8639 Cable for U.2 NVMe SSD with 15Pin Power | MCIO x8 | 32 GT/s | NVMe SSDs |
| LLS-CB-1MC2UT-02 | LetLinkSo PCIe 4.0 MCIO x8 to 2 x SFF-8639 Cable for U.2 NVMe SSD with 15Pin Power | MCIO x8 | 16 GT/s | NVMe SSDs |
| LLS-CB-1MT1OC-02 | LetLinkSo M.2 to Oculink Adapter, M2 PCIe 4.0 to SFF-8612 SFF-8611 Extension Cable for eGPU, NVMe SSD | M.2 M-Key | 64 Gbps | mini PCs, eGPU docks, GPU docks, NVMe SSDs |
| LLS-CB-1MT1UT-01 | LetLinkSo PCIe 5.0 M.2 to U.2 Adapter, M.2 to SFF-8639 U.2 NVMe SSD Cable with 15Pin Power, Left / Right / Bottom Side / Top Side Exit | M.2 | 128 Gbps | servers, NVMe SSDs |
| LLS-CB-1MT1UT-02 | LetLinkSo PCIe 4.0 M.2 to U.2 Adapter, M.2 to SFF-8639 U.2 NVMe SSD Cable with 15Pin Power, Left / Right Exit | M.2 | 64 Gbps | servers, NVMe SSDs |
| LLS-CB-1OC1OC-01 | LetLinkSo Oculink Cable PCIe 4.0 SFF, 8611 4i Male / 8611 4i Long Male Extension Cable for Oculink eGPU onexGPU Mini PC SSD | OCuLink SFF-8611 4i | 16 GT/s | mini PCs, eGPU docks, GPU docks, NVMe SSDs, RAID / HBA cards |
| LLS-CB-1OC1OC-02 | LetLinkSo Oculink Cable PCIe 4.0 SFF-8611 to SFF-8611 8i Cable for Server | OCuLink SFF-8611 8i | 16 GT/s | servers, GPU docks, NVMe SSDs, RAID / HBA cards |
| LLS-CB-1OC1OC-04 | LetLinkSo Shielded Oculink Cable PCIe 4.0 SFF-8611 4i Male Extension Cable for Oculink eGPU onexGPU Mini PC SSD | OCuLink SFF-8611 4i | 16 GT/s | mini PCs, eGPU docks, GPU docks, NVMe SSDs, RAID / HBA cards |
| LLS-CB-1OC1OC-05 | LetLinkSo Oculink 4i Male to Female Cable | OCuLink SFF-8611 4i | 64 Gbps | servers, workstations, GPU docks, NVMe SSDs |
| LLS-CB-1OC2MA-01 | LetLinkSo PCIe 4.0 Oculink SFF-8611 8x to 2 Mini SAS SFF-8087 Cable | OCuLink SFF-8611 | 16 GT/s | servers, RAID / HBA cards |
| LLS-CB-1OC2UT-01 | LetLinkSo PCIe 4.0 Oculink SFF-8611 8x to 2 SFF-8639 U.2 NVMe SSD Cable with 15 Pin SATA Power | OCuLink SFF-8611 | 16 GT/s | servers, NVMe SSDs, RAID / HBA cards |
| LLS-CB-1SS1UT-01 | LetLinkSo PCIe 4.0 Slim SAS SFF-8654 4i to U.2 SFF-8639 NVMe SSD Cable Adapter with 15 Pin SATA Power | SFF-8654 | 16 GT/s | servers, NVMe SSDs, RAID / HBA cards |
| LLS-CB-1SS8SA-01 | LetLinkSo PCIe 4.0 Slim SAS to SATA Cable, SFF, 8654 to 8 SATA III Interface (R/A to / 8654 to 8 SATA III Interface (STR to STR) | Slim SAS SFF-8654 | 6 Gbps | RAID / HBA cards |
| LLS-CB-MTED-01 | LetLinkSo PCIe 5.0 M.2 to EDSFF E1 E3 Adapter for E1.S E1.L E3.S E3.L SSD with 15P SATA Power (Left Exit) | M.2 | 128 Gbps, 32 GT/s | servers, workstations, NVMe SSDs |
| LLS-CB-PCEXG5RA-01 | LetLinkSo PCIe 5.0 Riser Cable PCIex16 GPU Extension Cable for Vertical GPU mount, Black | PCIex16 | 32 GT/s | GPU docks |
| LLS-CB-PCEXRA-03 | LetLinkSo PCIe 4.0 Riser Cable, PCI-e x16 GPU Riser Extension Cable Right Angle Adapter, White / Black | PCIe x16 | 16 GT/s | GPU docks |
Confirm host and device connectors, MCIO x4, x8 or x16 lane count, PCIe 5.0 or 6.0 generation, target length, orientation, shielding and validation requirements before requesting a quote.
SFF-8611 is commonly used for the cabled OCuLink connection, while SFF-8612 is commonly seen on the board or adapter side. Confirm the complete connection path and lane count before selecting an assembly.
Yes. LetLinkSo lists MCIO to EDSFF options for E1.S, E1.L, E3.S and E3.L projects. Confirm the host MCIO lane count, device form factor, power requirement, length and quantity for a B2B quote.
Qualified projects can be reviewed for custom length, connector combination, routing direction, shielding and volume sourcing. Include the application, connector A/B, PCIe generation, length and quantity in the inquiry.