BPN-DE230SS is iStarUSAs 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 70mm fan. SATA power connector increases compatibility with most power supplies. The metal key locks help secure your hard drives and prevent unauthorized access. Converting two standard 5.25" drive bays into three usable hard drive slots, it is economically designed to maximize your investment. Aluminum Frame, designed for heavy-duty purpose. Support SAS I/II, SATA I/II/III Hard Drives. Data Transfer Rate up to 6.0 Gb/s. Integrative shaping aluminum design for quickest heat sink. Aluminum front bezel with metal key lock mechanism for double safety. Removable fan cover for easy maintenance. Multi-functional LED Indication. Support Hot-Swap and RAID Configuration (need an additional RAID controller). Low-noise Design with Fan-speed Control. 3TB Hard Drives Compatible. RoHS Compliance Version: Yes. Standard Drive Bays: 5.25" Drives: 2. Hotswap: 3.5: 3. Hotswap HDD Type: 3.5" SAS I/II and SATA I/II/III. Indicators: Blue for Power on/ Purple for HDD Access. Security: Key Lock. Material of Front Bezel: Aluminum. Material of Handle: Aluminum. Material of Main Chassis: Aluminum. Color of Front Bezel: Black/ Blue/ Red/ Silver. Color of Main Chassis: Black. Cooling Fan: 1x70mm. Red Handle. Dimensions: 5.71" W x 3.35" H x 7.64" D - 145.0mm W x 85.1mm H x 194.1mm D.