IBM 2757 AS/400 iSeries PCI-X RAID Controller
Refurbished IBM 2757 PCI-X Ultra RAID Disk Controller. It supports up to 18 internal disk drives and two internal removable media devices (CD-ROM, DVD, or tape drive). It has effectively 757MB write cache and RAID-5 capability. At least 3 drives are required for a RAID set. IBM M.A.Q. (Maintenance)!