#5065 Storage/PCI Expansion Tower: Installed on AS/400e 6XX, SXX, and 7XX models (except 600 and S10) for adding disk units, PCI adapter cards, and up to two removable media units. #5065 supports Ultra2 SCSI disk units. #5065 includes a 1063 Mbps optical bus card, cables (including an optical cable) and the Storage/PCI Expansion Tower. The Storage/PCI Expansion Tower includes:

• 12 PCI IOA slots
• Space for 45 disk units
• Space for two removable media devices
• One battery backup
• Redundant swap power supplies
• PCI LAN/WAN/Workstation IOP (#2824)

The 12 PCI IOA slots are in groups of four slots. Each group of four slots is supported by a #2824 PCI/LAN/WAN/Workstation IOP. In each group of four slots, two slots are low speed PCI slots, one slot is a high-speed PCI slot and one slot is a high-speed PCI SCSI slot. One #2824 is included with the #5065; the second and third #2824s are optional. The 45-disk unit positions are in groups of 15. Each group of 15 disk units is:

• Controlled by a PCI RAID Disk Unit Controller (#2748).
• Further divided into three groups of five disk units, with each group of five disk units supported on a separate Ultra2 SCSI (LVD-SCSI) bus from a #2748.

A mounting kit for the first 15 disk units is included in the #5065. A mounting kit for the next 30 disk units is optional; order #5101, the 30-Disk Expansion Feature. #5065 can have up to three #2748 PCI RAID Disk Unit Controllers. They must be installed in the PCI SCSI card slots. #5065 also supports up to two removable media devices (internal tape or CD-ROM). These devices are supported by the base #2748. #2718 PCI Magnetic Media Controller and #2729 PCI Magnetic Media Controller may also be installed in the PCI SCSI card slots to support external tape devices. Prerequisites: Optical Link Processor (#2688) and Optical Bus Adapter (#2695), or #2688 and an open IOA slot on the base optical bus adapter for Models 640, 650, S30, S40, 730, and 740. Optical Link Processor (#2688) for Models 620, S20, and 720. OS/400 V4R4 with PTF MF22587, or cum PTF package C9229440, or later, is required. Maximums: 18 on Models 640, 650, S30, S40, 730, and 740. Four on Models 620, S20, and 720.