3x5.25" to 5x3.5" SAS/SATA 6.0 Gb/s Trayless Hot-Swap Cage - Aluminum Frame, designed for heavy-duty purpose - Support SAS I/II, SATA I/II/III Hard Drives - Integrative shaping aluminum design for quickest heat sink - Data Transfer Rate up to 6.0 Gb/s - Aluminum front bezel with metal key lock mechanism for double safety - Removable fan cover for easy maintenance - Multi-functional LED Indication - Support Hot-Swap & RAID Configuration (need an additional RAID controller) - 3TB Hard Drives Compatible BPN-DE350SS is iStarUSA's third generation tray-less hot-swap hard drive cage. It features the latest transfer rate technology of 6.0 Gb/s (SATA I/II/III and SAS I/II), and is RAID capable. It also comes with adjustable fans speed and ultra-quiet cooling fans. The LED Display lights features the new blue light by popular demand. Heat dissipation is enhanced by the full aluminum construction and a 80mm fan. SATA power connector increases compatibility with most power supplies. The metal key locks help secure your hard drives and prevent unauthorized access. Converting three standard 5.25" drive bays into five usable hard drive slots, it is economically designed to maximize your investment.