<ul><li>Supports four 3.5 SATA HDD</li><li>Built-in power supply and three 40mm fans</li><li>Compact and screw-less design for Easy HDD installation</li><li>Fully supports hot-swap function</li><li>Supports USB 3.0 Maximum 5Gbps transfer speed</li><li>Supports eSATA maximum 3Gbps transfer speed</li><li>Configurable RAID function (RAID 0, 1, 3, 5, 10, Combine, clear RAID)</li></ul><br><br>Supports four 3.5 SATA HDD. Built-in power supply and three 40mm fans. Compact and screw-less design for easy HDD installation. Fully supports hot-swap function. Supports USB 3.0 Maximum 5Gbps transfer speed. Supports eSATA maximum 3Gbps transfer speed. Configurable RAID function (RAID 0, 1, 3, 5, 10, Combine, clear RAID).

SilverStone Technology 4 Bay 1U Rackmount RAID Storage Unit with USB 3.0 and eSATA Interface (RS431U-V2)