FS305-12G SST-FS305-12G Features: Fits five 3.5" SAS-12G/SATA-6Gbit/s drives in three 5.25" device bay Adjustable drive status LED and fan control system Trayless & screwless design Individual metal key lock for each drive for extra security All aluminum body with beautiful hairline brushed finish Independent drive status LED Built-in cooling fan for excellent heat dissipation Fully supports Hot-Swap function Specifications: Model No. SST-FS305B-12G Color Black Material Aluminum and front bezel with plastic clip button Form factor 5.25” drive bay x 3 Drive support 5 x 3.5” SAS/SATA HDD or SSD Transfer rate Up to 12 Gbit/s (dependent on drive speed) Host interface 7-Pin SATA connector x 5 or SAS primary channel connection Power connector SATA 15-Pin x 2 Drive tray security Triangle metal key lock design LED indicator Power ON : Blue Accessing : Purple blinking Number of key 2 Switch button Fan speed:High/Low HDD LED:ON/OFF Cooling fan 80mm fan x 1, 3000rpm Net weight 1.40kg Dimension 146mm (W) x 126mm (H) x 199mm (D) 5.75" (W) x 4.96" (H) x 7.83" (D)