AJMRTC M.2 M-Key NVMe to OCuLink SFF-8611 4i / SFF-8612 External PCIe 4.0 X4 Extension Cable, Gen4 High Speed Adapter Cord M2OC1C, 40CM for eGPU and U.2 SSD

AJMRTC M2OC1C extension cable is a high-performance PCIe 4.0 X4 adapter that turns an M.2 M-Key NVMe slot into an external OCuLink interface. It supports both SFF-8611 4i and SFF-8612 connectors, delivering full Gen4 bandwidth up to 64Gbps. The 40-centimeter shielded cable minimizes crosstalk and signal attenuation, suitable for building external GPU docks or connecting U.2 / U.3 high-speed SSDs on mini PCs, notebooks and compact motherboards without native OCuLink ports. It requires a PCIe X4 M.2 slot; SATA-only or PCIe X2 M.2 slots are not supported. No extra driver is needed. eGPU dock, SSD and other peripheral devices are not included.

Specifications

1. Brand: AJMRTC
2. Model: M2OC1C
3. Standard: PCIe 4.0 X4 (Gen4), backward compatible with PCIe 3.0
4. Input Interface: M.2 NGFF M-Key
5. Output Interface: OCuLink SFF-8611 4i / SFF-8612
6. Bandwidth: Up to 64Gbps
7. Cable Length: 40CM
8. Cable Structure: Fully shielded high-speed differential cable
9. Contact: Gold-plated
10. Supported Devices: eGPU dock, U.2 / U.3 NVMe SSD, high-speed storage devices
11. Compatible Host: Mini PC, laptop, ITX motherboard with PCIe X4 M-Key slot
12. Note: SATA M.2 and PCIe X2 M.2 slots are incompatible; peripherals not included