The silver iStarUSA Trayless 3 x 5.25" to 5 x 3.5" 12 Gb/s HDD Hot-Swap Rack turns three 5.25" bays into five 3.5" bays. It supports transfer rates up to 12 Gb/s and is RAID capable. It also features an adjustable-speed 80mm cooling fan. LED display lights feature blue and purple status indicators for monitoring at a glance. Heat dissipation is enhanced by full aluminum construction, while SATA power connectors increase compatibility with most power supplies. The keyed metal locks help secure your hard drives and prevent unauthorized access.