iStarUSA BPX-124-SA 5.25 to 4 x 2.5 SATA 6 Gbps HDD SSD Hot-swap Rack Type: Hot-swap Rack Color: Black Specifications: Standard Drive Bays: Hotswap 2.5: 4 5.25 Drives: 1 Hotswap HDD Type: 2.5 SATA I/II/III Indicators: Solid blue:power on. Red blinking:HDD accessing Material of Front Bezel: Plastic Material of Main Chassis: Aluminum and Plastic Color of Front Bezel: Black Color of Main Chassis: Black Cooling Fan: 1 x 40mm Dimensions : 1.65 x 5.75 x 6.69