1994 IBM model M (51G8572) with speaker Made by Lexmark 11-MAR-94

SKU: 5060590 Category:


part# 51G8572
serial# 5060590
date 11 MAR 94 (22 years old)
IBM logo black logo on white background
cable removable SDL, coiled cable, ps/2 connector (used cable, extra-long length)
key caps removable (two piece, key stem + key cap)
key switches clicky = buckling spring
Designed when “real” typing on a quality keyboard was a required skill to use a $4000 IBM personal computer. PC Mag link
(pre-dates the then new mouse-click and graphical user interface operating system later to be known as Microsoft Windows 3.1 and 95)
condition Keyboard pre-selected as good candidate and passed initial testing to confirm mechanical condition. Upper keyboard case disassembled and individual 101 keys have been removed and fully cleaned by hand. Inspection of interior plate. Any missing rivets drilled out and replaced with M2 precision screws to restore internal integrity. Interior plate vacuumed to remove foreign debris. Keyboard re-assembled and re-tested post-cleaning. Individual photography of rear label. Photo gallery of typical restoration workflow.
comments This keyboard is tested to work 100%. The keyboard assembly has been confirmed to be in functional, operational condition.
comments  51G8572 variant similar to 1391401 keyboard, with exception that this keyboard has 1) drainage channels, 2) internal speaker (unknown how to make functional), 3) key labelled Ctrl/Act, 3) includes extra-long SDL to ps/2 cable

51G8572-001 51G8572-002
51G8572-004 51G8572-005 51G8572-006 51G8572-007 51G8572-008

Additional information

Weight 8 lbs
Dimensions 24 × 12 × 3 in