Browse OCuLink, MCIO, EDSFF, U.2 and M.2 PCIe adapter cards for NVMe storage, eGPU docks, servers and workstations, with host-slot and interface matching support for qualified B2B projects.
Choose an adapter card by mapping the host slot to the target connector and device. An OCuLink adapter card may connect PCIe or M.2 to SFF-8612 and then use an SFF-8611 cable; an MCIO adapter card may expose x8 links for U.2 NVMe; an EDSFF adapter may bridge E1.S or E3.S storage to U.2. Confirm the entire path before ordering.
| Application | Host side | Target interface | Relevant page |
|---|---|---|---|
| eGPU or GPU dock | PCIe x4, x8, x16 or M.2 M-Key | OCuLink SFF-8612 with SFF-8611 cable | OCuLink adapter cards |
| U.2 NVMe expansion | PCIe x8/x16 or MCIO | MCIO x8 or SFF-8639 U.2 | MCIO adapter solutions |
| EDSFF enterprise storage | MCIO, M.2 or PCIe | E1.S, E1.L, E3.S or E3.L | EDSFF adapter solutions |
| Multiple M.2 NVMe SSDs | PCIe x16 Gen4 or Gen5 | Four M.2 M-Key sockets | Request NVMe adapter guidance |
Match the host slot, connector family and target device before requesting a quote. These routes connect common search intent to relevant adapter card models.
PCIe and M.2 to OCuLink SFF-8612 / SFF-8611 cards for eGPU docks, NVMe and compact workstations.
Explore OCuLink adapter cardsPCIe 5.0 x16 to dual MCIO x8 adapter cards for four U.2 NVMe SSDs and server storage platforms.
View MCIO U.2 adapter modelPCIe 5.0 E1.S, E1.L, E3.S and E3.L to U.2 adapter options for enterprise NVMe integration.
View EDSFF adapter modelPCIe 5.0 M.2 NVMe SSD to PCIe x4 adapter card for desktop PCs, designed for M-Key M.2 drives.
PCIe 5.0 EDSFF- to SFF-8639 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 32 GT/s support.
PCIe 4.0 M.2 to M.2 M-key for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 64 Gbps, 16 GT/s support.
PCIe 4.0 M.2 to M.2 M-key for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 64 Gbps, 16 GT/s support.
PCIe 4.0 M.2 M-Key to OCuLink SFF-8612 / SFF-8611 4i for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 64 Gbps, 16 GT/s support.
PCIe 5.0 MCIO x8 to MCIO 8 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 256 Gbps, 128 Gbps support.
PCIe 4.0 OCuLink SFF-8612 to PCIe x4 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 64 Gbps, 16 GT/s support.
PCIe 4.0 OCuLink SFF-8612 to OCuLink SFF-8612 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 64 Gbps, 16 GT/s support.
PCIe 4.0 OCuLink SFF-8612 to PCIe x1 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 16 GT/s support.
PCIe 3.0 USB C to USB A for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 20 Gbps support.
PCIe 3.0 USB C to USB A for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms.
PCIe 5.0 MCIO x8 to MCIO 8 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 512 Gbps, 128 Gbps support.
PCIe 5.0 MCIO x8 to MCIO 8 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 512 Gbps, 128 Gbps support.
PCIe 5.0 MCIO x8 to MCIO 8 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 512 Gbps, 128 Gbps support.
PCIe 5.0 MCIO x8 to MCIO 8 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 512 Gbps, 128 Gbps support.
PCIe 4.0 OCuLink SFF-8612 to PCIe x8 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 128 Gbps, 16 GT/s support.
PCIe 3.0 USB C to SATA for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 10 Gbps support.
PCIe 5.0 SFF-8639 to U.2 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 32 GT/s support.
PCIe 5.0 MCIO x8 to MCIOX8 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 32 GT/s support.
PCIe 5.0 M.2 to M.2 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 512 Gbps, 128 Gbps support.
PCIe 4.0 M.2 to M.2 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 256 Gbps support.
PCIe 4.0 M.2 to M.2 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 256 Gbps support.
PCIe 4.0 M.2 to M.2 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 256 Gbps support.
PCIe 5.0 M.2 to M.2 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 512 Gbps, 128 Gbps support.
PCIe 4.0 OCuLink SFF-8612 to PCIe x16 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 256 Gbps, 16 GT/s support.
PCIe 5.0 U.2 to SFF-8639 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 128 Gbps, 32 GT/s support.
PCIe 4.0 U.2 to SFF-8639 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 64 Gbps, 16 GT/s support.
PCIe 5.0 MCIO 8 to MCIO x8 for expanding high-speed PCIe connectivity across NVMe storage, GPU, eGPU, and workstation platforms with 512 Gbps, 32 GT/s support.
| Model | Product | Interface | Speed / Protocol | Compatibility |
|---|---|---|---|---|
| LLS-CD-1ED1UT-01 | LetLinkSo PCIe 5.0 GEN-Z EDSFF to U.2 SFF-8639 Adapter Card NVMe SSD Converter for 28Pin E1.S E1.L E3.S E3.L, High-Speed Server Interconnect for Enterprise Data Center & IT Workstations | EDSFF- | 32 GT/s | servers, workstations, NVMe SSDs |
| LLS-CD-1MT1MT-01 | LetLinkSo PCIe 4.0 M.2 NVMe SSD Extension Cable NGFF M2 M-Key Adapter Card Extender (90° Right Angle) | M.2 | 64 Gbps, 16 GT/s | servers, NVMe SSDs |
| LLS-CD-1MT1MT-02 | LetLinkSo PCIe 4.0 M.2 NVMe SSD Extension Cable NGFF M2 M-Key Adapter Card Extender (Straight Out) | M.2 | 64 Gbps, 16 GT/s | servers, NVMe SSDs |
| LLS-CD-1MT1OC-01 | LetLinkSo PCIe 4.0 M.2 to Oculink SFF-8612 M-key SFF-8611 Adapter Card | M.2 M-Key | 64 Gbps, 16 GT/s | servers, eGPU docks, GPU docks, NVMe SSDs |
| LLS-CD-1PC1MC-01 | LetLinkSo PCIe 5.0 x8 to MCIO x8 Adapter Card for 2 U.2 NVMe SSD (Side Right Interface) | MCIO x8 | 256 Gbps, 128 Gbps | servers, NVMe SSDs |
| LLS-CD-1PC1OC-01 | LetLinkSo PCIe 4.0 x4 to Oculink SFF-8612 Internal SFF-8611 Adapter Card for NVMe SSD, GPU, eGPU | OCuLink SFF-8612 | 64 Gbps, 16 GT/s | servers, eGPU docks, GPU docks, NVMe SSDs |
| LLS-CD-1PC1OC-02 | LetLinkSo PCIe 4.0 x4 to Oculink External SFF-8612 Adapter Card for eGPU Dock Mimi Pc | OCuLink SFF-8612 | 64 Gbps, 16 GT/s | servers, eGPU docks, GPU docks, NVMe SSDs |
| LLS-CD-1PC1OC-03 | LetLinkSo PCIe 4.0 x1 to Oculink SFF-8612 Adapter SFF-8611 External Graphics Card for GPU Dock, eGPU, NVMe SSD | OCuLink SFF-8612 | 16 GT/s | servers, eGPU docks, GPU docks, NVMe SSDs |
| LLS-CD-1PC1UC-01 | LetLinkSo PCIe 3.0 x4 to USB Type-C Expansion Card | PCIe 3.0 x4 | 20 Gbps | mini PCs, NVMe SSDs |
| LLS-CD-1PC1UC1UA-01 | LetLinkSo PCIe to USB Type-C Expansion Card | PCIe 3.0 x4 | PCIe 3.0 | workstations |
| LLS-CD-1PC2MC-01 | LetLinkSo PCIe 5.0 x16 to 2 MCIO x8 Adapter Card for 4 U.2 NVMe SSD (Upward Interface) | MCIO x8 | 512 Gbps, 128 Gbps | servers, NVMe SSDs |
| LLS-CD-1PC2MC-02 | LetLinkSo PCIe 5.0 x16 to 2 MCIO x8 Adapter Card for 4 U.2 NVMe SSD (Side Top Interface) | MCIO x8 | 512 Gbps, 128 Gbps | servers, NVMe SSDs |
| LLS-CD-1PC2MC-03 | LetLinkSo PCIe 5.0 x16 to 2 MCIO x8 Adapter Card for 4 U.2 NVMe SSD (Side Right Interface) | MCIO x8 | 512 Gbps, 128 Gbps | servers, NVMe SSDs |
| LLS-CD-1PC2MC-04 | LetLinkSo PCIe 5.0 x16 to 2 MCIO x8 Adapter Card for 4 U.2 NVMe SSD (Side Top Black) | MCIO x8 | 512 Gbps, 128 Gbps | servers, NVMe SSDs |
| LLS-CD-1PC2OC-01 | LetLinkSo Gen4 PCIe to Oculink SFF-8612 Adapter SFF-8611 External Graphics Card for GPU Dock, eGPU, NVMe SSD (PCIe x8 to Oculink) | OCuLink SFF-8612 | 128 Gbps, 16 GT/s | servers, eGPU docks, GPU docks, NVMe SSDs |
| LLS-CD-1PC2UC-01 | LetLinkSo PCIe 3.0 x4 to USB Type-C Expansion Card | PCIe 3.0 x4 | 10 Gbps | servers, workstations |
| LLS-CD-1PC2UT-01 | LetLinkSo Gen5 PCIe to U.2 Adapter PCIe x8 to dual SFF-8639 NVMe SSD Card | SFF-8639 | 32 GT/s | servers, NVMe SSDs |
| LLS-CD-1PC2UT1MC-01 | LetLinkSo PCIe 5.0 x16 to Dual U.2 SFF-8639 NVMe SSD Adapter Card with MCIO x8 Slot | MCIO x8 | 32 GT/s | servers, NVMe SSDs |
| LLS-CD-1PC4MT-01 | LetLinkSo PCIe 5.0 M.2 SSD Expansion Card for 4 NVME M.2 SSD M Key 2280 2260 2242 | M.2 | 512 Gbps, 128 Gbps | NVMe SSDs |
| LLS-CD-1PC4MT-02 | LetLinkSo M.2 PCIe Adapter x16 Gen4 for 4 Ports M2 SSDs, PCIe M.2 Expansion Card for 4 M.2 2280 2260 2242 2230 NVMe SSDs M Key | M.2 | 256 Gbps | NVMe SSDs |
| LLS-CD-1PC4MT-03 | LetLinkSo M.2 PCIe Adapter x16 Gen4 for 4 Ports M2 SSDs, PCIe M.2 Expansion Card for 4 M.2 2280 2260 2242 2230 NVMe SSDs M Key with Advanced Cooling Ultra Quiet DC Brushless Fan | M.2 | 256 Gbps | NVMe SSDs |
| LLS-CD-1PC4MT-04 | LetLinkSo M.2 PCIe Adapter x16 Gen4 for 4 Ports M2 SSDs, PCIe M.2 Expansion Card for 4 M.2 2280 2260 2242 2230 NVMe SSDs M Key with Advanced Cooling Heat Sink | M.2 | 256 Gbps | NVMe SSDs |
| LLS-CD-1PC4MT-07 | LetLinkSo M.2 PCIe adapter x16 Gen5 for 4 Ports M2 SSDs, PCIe M.2 Expansion Card with Cooling Fan for 4 M.2 2280 2260 2242 NVMe SSDs M key | M.2 | 512 Gbps, 128 Gbps | NVMe SSDs |
| LLS-CD-1PC4OC-01 | LetLinkSo Gen4 PCIe to Oculink SFF-8612 Adapter SFF-8611 External Graphics Card for GPU Dock, eGPU, NVMe SSD (PCIe x16 to Oculink) | OCuLink SFF-8612 | 256 Gbps, 16 GT/s | servers, eGPU docks, GPU docks, NVMe SSDs |
| LLS-CD-1UT1MT-01 | LetLinkSo PCIe 5.0 U.2 to M.2 Adapter, SFF-8639 to M2 NVMe SSD Card | U.2 | 128 Gbps, 32 GT/s | servers, workstations, NVMe SSDs |
| LLS-CD-1UT1MT-02 | LetLinkSo PCIe 4.0 U.2 to M.2 Adapter, SFF-8639 to M2 NVMe SSD Card | U.2 | 64 Gbps, 16 GT/s | servers, workstations, NVMe SSDs |
| LLS-CD-2MC1PC | LetLinkSo Gen5 MCIO 8i to PCIe x16 Adapter, Dual MCIO x8 to PCIe Female Card with 6 Pin GPU Power Port for Flexible Slot Extension | MCIO 8 | 512 Gbps, 32 GT/s | servers, workstations, GPU docks, NVMe SSDs |
An OCuLink adapter card connects a PCIe slot or M.2 host interface to an OCuLink SFF-8611 or SFF-8612 path for eGPU docks, NVMe storage, servers and workstations.
Start with the host slot and target device, then match connector family, lane count, PCIe generation, orientation and power requirements. Use the full connection path rather than the interface name alone.
Some LetLinkSo PCIe adapter cards expose multiple MCIO, U.2 or M.2 paths. Confirm the host lane allocation, bifurcation support, connector layout and SSD count for the target platform.
Send the host slot, connector type, lane count, PCIe generation, target NVMe or eGPU device, internal or external orientation, quantity, country and any system drawing.