3.5” Serial ATA hard drive SATA II HDD-ROM mobile rack. Hot swap. Stylish Front Panel Design With Excellent Ventilation. 4 Sets of Anti-Vibration Rubber Foot Stand. SATA II 3.0GB/s high speed transfer. Fit 5.25 inch Standard Bay. Working O any Driver or Software. Tool Free Hard Disk Installation. Security Key Lock (and 2 Spare Keys Included). Fit 3.5” Serial ATA hard drive. Interface: Standard S-ATA. Operating Tem: 0 to 55