Adaptec SCSI RAID 2120S Controller:The Adaptec 2120S supports a range of operating systems (Windows® XP/NT/2000, Linux, NetWare, and Caldera) and RAID configurations (0, 1, 10, 5, 50, and JBOD). The Ultra320 SCSI RAID card features a low-profile MD2 form factor, and accommodates an optionally available battery backup module (ABM-300) for 72-hour cache memory protection. For single-channel RAID control in high-density servers and workstations, bothconventional and rackmount, the Adaptec 2120S is an excellent choice.All Adaptec low-profile RAID controllers have a full-size bracket installed on the card. The kits contain a low-profile bracket for use in 1U systems.