Features: External hard drive cable SFF8643 pair 4 SFF8639 with 15P power supply. This product meets signal bandwidth requirements of 6Gb/s to 12Gb/s or the corresponding SAS2.1 and proposed SAS3.0 industry standards signal specifications. The systems also provide a higher linears circuit board port density (port to port 11 millimeters) than previous interconnection systems (port to port linears port density of only 19.01 millimeters). The product fully complies with industry standards for SFF-8643 (internal applications) and SFF-8644 (external applications). Crafted from braided wire materials, this cable features design that minimizes signal interferences Specifications: Component:Braided Wire Length:0.5m/0.75m Package Includes: 1Pc Data Cable note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.