A slide-in replacement for a Nova/Eclipse. A 10.5 inch (267 mm) high chassis with a 5-position Nova/Eclipse backplane and card cage, 450 watt power supply, cooling and rack slides. Accommodates up to five DG-compatible 15" x 15" (381 x 381mm) boards, a PC motherboard, diskette drive and up to three visible half-height disk drive bays and one internal half-height drive bay.