. Length: 0.5m and 0.75m 2. External hard disk cable Mini sas HD SFF 8643 to 4 SFF 8639 with 15P power supply 3. The product meets 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. 4. The system also offers greater linear board port density (port-to-port linear port density of only 19.01 mm) than previous SAS interconnect systems (port-to-port linear port density of only 19.01 mm) 5. Mini-SAS HD products fully comply with SFF-8643 (internal application) and SFF-8644 (external application) industry specifications. 6. Connector: SFF-8643 to SFF-8639 12G