Adds Ultra320 disk expansion and speed to even your old Ultra only server. Ultra320 SCSI 4 position expansion cage PLUS a Single-channel, full featured, microprocessor-based, Ultra320 SCSI RAID card with external SCSI Cable. For pedestal or rack server. Compatible with even older servers with an available PCI slot. PCI-X, PCI-66 and PCI-33. Breaths state-of-the-art life back into your perfectly good older server! 4 Slots for up to 4 U320 Hot Swap Drives Ultra320 backplane and cables for top performance Single Channel U320 Controller Optimized Disk Utilization RAID Level Migration Online capacity expansion Background initialization (for immediate RAID availability) S.M.A.R.T. and SAF-TE support Hot-swap disk drive support for easy replacement Hot-spare disk support with automatic rebuild Supports bootable arrays Availability: Usually ships the next business day. RAIDU3201CHKit$809.00U320_Disk_Options: No_Drives_Inc.3-36gb10k(ADD_$940)3-36gb15k(ADD_$1300)3-73gb10k(ADD_$1400)3-73gb15k(ADD_$2000)3-146gb10k(ADD_$2600)