1.Mini SAS SFF-8643 to U.2 SFF-8639 power cable, used to connect PCIe slot with SFF-8643 port and SSD with U.2 interface, it comes by upgrading the computer with U.2 NVMe SSD Provide high-performance data transmission 2. Mini SAS SFF 8643 to U.2 SFF 8639 cable upgrade storage, through U.2 PCIe 3.0, 4-channel connection can achieve NVMe SSD high-speed operation; NVMe cable with integrated SATA power supply connected to the computer power supply 3.3V 12V input power for NVMe SSD 3. Built-in hard disk line Mini sas HD SFF 8643 to 4 SFF 8639 with 15P power generation next-generation SAS storage interface, and provides a new Mini-SAS HD product portfolio 4.SFF-8643 is compatible with cards such as U.2 add-on card, M.2 to U.2-Mini-SAS add-on card, accessory super kit expansion card M.2 to Mini SAS HD 5. Meet the signal bandwidth requirements of 6Gb / s to 12Gb / s or the corresponding SAS 2.1 and proposed SAS 3.0 industry standard signal specifications Product name:power cable Interface type:flat head interface Process:injection molding Product weight:40g colour:black material:PVC + Copper size:500mm Package Contents: 1*Power Adapter Cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.