The ds-135ssbk is a ams aluminum comet removable rack, for 3.5 Hard disk drive. Sata to sata direct connection, up to ata 150 mb/s. With magic handle. Availability color: beige and black.Features and speicifications: high performance up to ata 150 mb/s. Magic handle - auto in/out with dust protection cover. Sata to sata direct connection. Hot-swappable to work with the latest ide raid controllers. Mechanical / electronic key lock, for device power. Front ball bearing cooling fan. 15Pin sata and 4pin power connector. Aluminum alloy construction ( heat sink design ). Short body design to save weight and space. Support sata led activity. Dimension: 7.4(L) x 5.7(W) x 1.6(H) inches.