This is a list of physical dimensions for various IBM and family keyboards. Measurements are included in millimetres and inches, measured to an approximate accuracy of +- 0.2mm accuracy. Any measurements without a source were measured by myself.
Model B 6580-type Displaywriter Type A Keyboard
538mm x 213mm x 101mm
(21.18" x 8.39" x 3.98")
486mm x 196mm x 34mm
(19.13" x 7.72" x 1.34")
The length measurement includes the riser feet handles. Excluding them, the keyboard is 456mm long.
Model F 5291 Terminal Keyboard
515mm x 230mm x 32mm
(20.28" x 9.06" x 1.26")
The length measurement includes the riser feet handles. Excluding them, the keyboard is 484mm long.
Model F 4704 Model 200 Alphameric Keyboard
357mm x 178mm x 29mm
(14.06" x 7.01" x 1.14")
Model F 4704 Model 300 Expanded Alphameric Keyboard
423mm x 178mm x 29mm
(16.65" x 7.01" x 1.14")
Model F 122-key Terminal Keyboard
558mm x 229mm x 64mm
(21.97" x 9.02" x 2.52")
Model M Enhanced Industrial Keyboard, Model M Enhanced Terminal Keyboard, Model M Enhanced PC Keyboard
487mm x 207mm x 47mm
(19.17" x 8.15" x 1.85")
Model M Type I 122-key Terminal Keyboard, Model M Type II 122-key Terminal Keyboard
558mm x 229mm x 64mm
(21.97" x 9.02" x 2.52")
Model M Space Saving Keyboard, Model M Industrial Space Saving Keyboard
406mm x 190mm x 58mm
(15.98" x 7.48" x 2.28")
Model M Type III 122-key Terminal Keyboard, Model M Type IV 122-key Terminal Emulator Keyboard
526mm x 212mm x 51mm
(20.71" x 8.35" x 2.01")
Model M1 Selectric Touch Keyboard, Model M2 Selectric Touch Keyboard, Model M2 Terminal Keyboard
451mm x 158mm x 38mm
(17.76" x 6.22" x 1.5")
91mm x 121mm x 38mm
(3.58" x 4.76" x 1.5")
Model M4 Space Saver Keyboard, Model M4-1 Space Saver TrackPoint II Keyboard
330mm x 60mm x 38mm
(12.99" x 2.36" x 1.5")
Model M4 Space Saver Numeric Keypad, Model M4-1 Space Saver Numeric Keypad
92mm x 60mm x 38mm
(3.62" x 2.36" x 1.5")
Model M13 TrackPoint II Keyboard, Model M13 TrackPoint II/FSR Industrial Keyboard
487mm x 207mm x 47mm
(19.17" x 8.15" x 1.85")
Model M 5576-C01 TrackPoint II Keyboard, Model M EnduraPro Keyboard, Model M SpaceSaver Keyboard
455mm x 180mm x 50mm
(17.91" x 7.09" x 1.97")
"Model M-e" PS/2 ANPOS Keyboard
437mm x 200mm x 24mm
(17.2" x 7.87" x 0.94")
The depth measurement includes a pointing device module. Excluding one, the depth is 167mm (6.57").
"Model M-e" MCANPOS Keyboard
340mm x 248mm x 24mm
(13.39" x 9.76" x 0.94")
The depth measurement includes a pointing device module. Excluding one, the depth is 215mm (8.46").
"Model M-e" 67-Key MPOS Keyboard
325mm x 167mm x 24mm
(12.8" x 6.57" x 0.94")
"Model M-e" 67-Key MPOS LCD Keyboard
435mm x 167mm x 24mm
(17.13" x 6.57" x 0.94")
New Model M Space Saving Full-Sized Keyboard
476mm x 188mm x 50mm
(18.74" x 7.4" x 1.97")
