The Supermicro CBL-SAST-0956 enables OCuLink (x4) to PCIE SFF-8639 with power cable connections for storage. This cable is compliant with T10 and SFF standard and is verified with Supermicro servers, AOC cards, and storage. Each Supermicro cable is validated to ensure quality and performance. Manufacturer Supermicro Length 55cm Cable Type OCuLink Cable Connectors Host - OCuLink (SFF-8611) (x4) with 4 Pin Power Cable Connectors (Other Side) Target - U.2 PCIE x4 (SFF-8639) Length Under 1m Search Terms CBL-SAST-0956, OCuLink, 4 lanes, U.2, PCIe, SFF-8639 Warranty 3 year warranty Product Environmental Compliance RoHS and REACH compliant, details available upon request