OcuLink PCIe PCI-Express SFF-8611 4i to SFF-8654 Slimline SSD Data Active Cable 50cm This OCuLink cable can be used to connect internal devices, e.g. a backplane with SFF-8654 connector to a controller with OCuLink SFF-8611 connector. OCuLink SFF-8611 male to SFF-8654 male Lock to Mating Part: With Active Latch Data transfer rate up to 8Gbps Cable length: 50cm System requirements:A free OCuLink interface.