(#7102) PCI System Expansion Unit. This feature is the same as feature #7101, except for the 32MB base and feature IOP. #7102 provides greater flexibility in combinations of PCI cards supported. #7102 is supported on processor features #2290, #2291, #2292, #2385, #2386, #2388, #2407, #2408 and #2409 only. #7102 is not supported on processor feature #2289. #7102 supports up to six additional disk units with concurrent maintenance. The controller for these disk units resides in the base system. This feature supports up to nine PCI adapter cards (six PCI card slots and three high-speed PCI card slots) driven by two PCI controllers and one Integrated PC server. One PCI controller card, with 32MB of memory, and a 350 Watt power supply is included with #7102. Prerequisite: OS/400 V4R4, or later, is required. Maximum: One. When ordering UPS, 9910-P15 is required.