Features: SATA II 3.0Gb/s high speed transfer, which can transmit data fast. Supports any 3.5 SATA HDD. Easy to mount the mobile rack to the 5.25 drive bay. Tool-free design, no drivers or software required, supports hot swap, plug and play. Made of high quality metal material, which ensures stable and durable performance. Trayless design, pull/push bar designed for easy insertion and ejection of HDD. Shockproof function, internal anti-shock rubber foot stands design.