Proliant 5500 Processor Power Module 100 + system unit (Proliant 5500 Processor Power Module/Canada), with 20-Mbyte internal hard disk, 640 Kbytes of memory (includes 256-Kbyte memory chipset), Gold Key USA keyboard, choice of monochrome video monitor (12-inch screen, 80 or 132 columns, bit-mapped graphics capability), and technical character set ROMs. PC19R-AA Monochrome video monitor, white phosphor. Proliant 5500 Processor Power Module Monochrome video monitor, green phosphor. PC19R-AS Monochrome video monitor, amber phosphor. Proliant 5500 Processor Power Module Autodial modem. 300/1,200 bits per second full-duplex, asynchronous/synchronous dialup public switched tele- phone network. For USA and Canada only. Proliant 5500 Processor Power Module Serial switch. Connects two printers to one Rainbow. Proliant 5500 Processor Power Module Serial interface switch. Connects two communication lines to one Rainbow. Proliant 5500 Processor Power Module Mini exchange. Microprocessor port selection device.