OCulink (SFF-8611/SFF-8612) to NVMe U.2 (SFF-8639) Adapter Cable

Description

PCIe to Oculink adapter to U.2 NVME 50cm cable

The maximum theoretical speed for a PCIe 3.0 x4 to OCuLink SFF-8612 adapter card is 32 Gbps (gigabits per second). This corresponds to a real-world maximum sequential throughput of approximately 3.9 GB/s to 4 GB/s (gigabytes per second).

Performance Specifications:

• Interface: OCuLink (SFF-8612) to PCIe 3.0 x4.
• Theoretical Bandwidth: 32 Gbps (PCIe 3.0 x4).
• Effective Data Rate: ~3,500 MB/s – 3,900 MB/s (approx. 4 GB/s).
• Protocol: NVMe 1.2 or higher (suitable for U.2/SF-8639 SSDs).

Key Considerations
Backward Compatibility: capable of PCIe 4.0, if your computer motherboard or M.2 slot only supports PCIe 3.0, the speed will be limited to the PCIe 3.0 x4 maximum of 32 Gbps.

Real-World Speed: While the maximum is ~3.9 GB/s, practical performance will depend on the maximum speed of the NVMe U.2 drive connected, typically reaching around 3,500 MB/s for PCIe 3.0 drives.

Use Case: This adapter is ideal for connecting high-speed NVMe U.2 drives to motherboards lacking a native U.2 port.

This setup is fully compatible with U.2 (SFF-8639) SSDs and acts as a direct, low-latency PCIe channel.