As one of our most exciting releases to date, the ExpressCage MB324SP-B brings to you our highly consumer-friendly enclosure made for anyone that requires affordable storage density. Fit up to 4 x 2.5 SATA/SAS HDD/SSD (7mm-12.5mm) into a single 5.25 bay with the ability to hot swap for easy drive replacement and single channel SAS support (SAS host required). Tool-less drive installation makes installing your drive more simple than ever and optional bottom tray screw holes are provided for extra protection and added stability. With a strategically placed 40mm cooling fan placed behind the unit and all around ventilation, your drives will stay cooler than the Arctic. An adjustable fan speed jumper lets you choose between HIGH, LOW, or AUTO smart cooling so you can set it based on your preference. Power users and system builders alike will enjoy the space saving, tool-less and hot-swap features provided by the ExpressCage MB324SP-B.