• 71 MB MFM 5,25" base configuration expandable in 1- or 2-Mbyte increments of PMI ECC MOS memory up to 4 Mbytes (depending on configuration) • One serial-line standard for connection of console terminal • 22-bit Q-bus backplane • I/O distribution panel for easy I/O device connection • Choice of pedestal, tabletop, rackmount, floorstand, or cabinet-based (manufacturing-integrated) packaging. • Optional four-line or eight-line asynchronous multiplexer from 50 to 9600 baud (DZQ11 or DHV11) • Optional Ethernet capability (DEQNA) • 71 MB MFM 5,25", 71-Mbyte, or 31-Mbyte fixed-disk drive (71 MB MFM 5,25") • 800-Kbyte dual-diskette drive (RX50) • 95-Mbyte cartridge-tape drive (TK50) • 71 MB MFM 5,25" (26 fixed/26 removable) tabletop disk drive (RC25) • 456-Mbyte high-capacity fixed-disk drive for the cabinet package (RA81) • 205-Mbyte high-capacity removable-disk drive for the cabinet package (RA60) • 40-Mbyte industry-standard, 1,600-b/in streaming-tape drive (TSV05)