50cm PCIe4.0 OCuLink SFF-8611 Male to U.2/U.3 SFF-8639 Female NVMe Extension Cable with SATA 15Pin Power, PCI-Express X4 High-Speed Storage Cable for Motherboard NVMe SSD Backplane

This 50-centimeter OCuLink SFF-8611 to U.2 SFF-8639 storage extension cable is a professional high-speed PCIe NVMe interconnection wire specially designed for motherboards and OCuLink RAID adapter cards without native U.2 ports.

One end uses SFF-8611 4i male OCuLink connector to connect motherboard OCuLink header or OCuLink expansion card; the other end is SFF-8639 female port compatible with all standard U.2/U.3 2.5-inch NVMe solid state drives. The attached separate SATA 15Pin power cable solves insufficient power issues of high-performance NVMe SSDs during long-term read-write tasks, guaranteeing stable 24/7 round-the-clock data center operation.

Constructed with high-purity tinned copper twinax conductors and precision impedance matching PCB shielding, it eliminates electromagnetic interference and signal loss during short-distance internal transmission, avoiding thermal throttling and performance drop. The black braided cable jacket optimizes internal heat dissipation and reduces wiring clutter inside compact chassis.

Reinforced locking latches provide tight anti-loose contact to prevent intermittent connection failures caused by server rack vibration. No driver installation required, widely used for workstation NVMe cache expansion, motherboard U.2 backplane upgrade, small-form-factor server storage deployment and NVMe JBOD array connection projects.