Sans Digital external mini-SAS HD to mini-SAS HD (SFF-8644 to SFF-8644) cable attaches to external storage device that equip with mini-SAS HD connector. mini-SAS HD cables combine four 12Gb/s connection into one, totaling 48Gb/s bandwidth, or up to 4800MB/s. Faster than eSATA, USB 3.0, 10G Ethernet or Thunderbolt, mini-SAS product is ideal for any high speed data requirements. When connect with passive mini-SAS storage device, each of the four 12Gb/s line is operate individually, providing direct access to the connected hard drives or SSD. mini-SAS HD also work with SAS expander storage to provide 48Gb/s data transfer bandwidth in between hard drives and controllers.