Features by part number edit
| Part Number | Key Type | Detachable | Interface | Drainage Channels | Label Type/Position | Manufacturer | Dates of Manufacture | Copyright | Misc features | |
|---|---|---|---|---|---|---|---|---|---|---|
| Key Caps | Cable | |||||||||
| 1370478 | Buckling spring | Yes | Yes | PS/2 | No | Blue, left corner | IBM | 1993 | IBM Corp. 1984 | M-5, trackball. Left and right click, and L/R "drag" buttons. |
| 1390120 | Buckling spring | Yes | Yes | AT | No | Silver, right corner | IBM | 1986–1987 | IBM Corp. 1984 | |
| 1390131 | Buckling spring | Yes | Yes | AT | No | Silver, right corner | IBM | 1986–1987, 1993 | IBM Corp. 1984 | |
| 1390133 | Buckling spring | Yes | Yes | AT | No | Silver, right corner | IBM | ?-1986-1987 | IBM Corp. 1984 | German QWERTZ layout |
| 1391401 | Buckling spring | Yes | Yes | AT or PS/2 | No (yes 1993 and after) | Grey (Blue 1992 and after), left corner | IBM | 1984–1996 | IBM/Lexmark International Corp. 1984 | |
| 1391402 | Buckling spring | Yes | Yes | PS/2 | Yes ? | ? | IBM UK | ?–1993–? | IBM Corp. 1985 | French AZERTY layout |
| 1391403 | Buckling spring | Yes | Yes | AT or PS/2 | No | ? | IBM | 1986–? | IBM Corp. 1985 | German QWERTZ layout |
| 1391405 | Buckling spring | Yes | Yes | AT or PS/2 | No | ? | IBM | 1986–? | IBM Corp. 1985 | Spanish QWERTY layout |
| 1391406 | Buckling spring | Yes | Yes | AT or PS/2 | No | Grey, left corner | IBM | ≤1988–1996 | IBM United Kingdom | UK 102-key variant |
| 1391407 | Buckling spring | Yes | No | PS/2 (or AT?) | No ? | ? | IBM | ?–1996-? | IBM United Kingdom | Icelandic 102-key |
| 1391409 | Buckling spring | Yes | Yes | PS/2 | No | Gray, left corner | IBM | 11/06/1992 | IBM Corp. 1985 | Norwegian 102-key |
| 1391410 | Buckling spring | Yes | Yes | PS/2 (or AT?) | No | ? | IBM UK | ?–1992–? | IBM Corp. 1985 | Portuguese 102-key |
| 1391411 | Buckling spring | Yes | Yes | PS/2 (or AT?) | No | ? | IBM UK | ?-1988–1992–? | IBM Corp. 1985 | Swedish 102-key |
| 1391414 | Buckling spring | Yes | Yes | PS/2 (or AT?) | No | ? | IBM UK | ?–1996–? | IBM Corp. 1985 | Dutch AZERTY layout |
| 1391412 | Buckling spring | Yes | Yes | PS/2 (or AT?) | No | ? | IBM UK | ?-1990-? | IBM Corp. | Swiss French QWERTZ layout |
| 1391472 | Buckling spring | Yes | Yes | AT or PS/2 | No | ? | IBM | 1991 | IBM Corp. 1984 | Space saver; no numeric keypad or lights |
| 1391506 | Buckling spring | Yes | Yes | PS/2 | No | ? | IBM de Mexico | 1990 | IBM Corp. 1984 | |
| 1394064 | Buckling spring | Yes | Yes | PS/2 | No | ? | Lexmark | ?–1996–? | Lexmark International, Inc. 1984 | |
| 1395300 | Buckling spring | No | No | PS/2 | No | ? | IBM | 1990-1993 | IBM Corp. 1984 | Model M2; Shipped with IBM PS/1 |
| 1397599 | Buckling spring | Yes | Yes | PS/2 | Yes | Gray, left corner | IBM | ?–1993–? | IBM Corp. 1984 | |
| 42H1292, 92G7453, 92G7483 | Buckling spring | Yes | No | PS/2 | Yes | Blue, left corner | Lexmark | 1993–1999 | Lexmark International, Inc. 1984 | |
| 82G2383 | Buckling spring | Yes | Yes | PS/2 | Yes | Blue, left corner | Lexmark | 1993–1999 | Lexmark International, Inc. 1984 | |
| 51G8572 | Buckling spring | Yes | Yes | PS/2 | Yes | Blue, left corner | Lexmark, IBM UK | 1993-1996 | IBM Corp. 1984/Lexmark International, Inc. 1984 | Model M; shipped with IBM RS/6000; speaker on bottom of unit |
| 52G9700 | Buckling spring | No | No | PS/2 | Yes | Blue, left corner | Lexmark | 1993–1999 | Lexmark International, Inc. 1984 | |
| 71G4644 | Dome switches | No | No | PS/2 | Yes | Blue, left corner | Lexmark | Unknown | Lexmark International, Inc. 1984 | |
| 42H1292U | Buckling spring | Yes | No | PS/2 | Yes | ? | Unicomp | 1996–present | Unicomp, Inc. 1984 | Optional AT/DIN adapter |
| 82G3281 | Buckling spring | No | No | PS/2 | Yes | ? | Lexmark | 1994–1995 | Lexmark International, Inc. 1984 | White trackpoint, two connectors for keyboard and mouse |
| 13H6705 | Buckling spring | No | No | PS/2 | Yes | ? | Lexmark | 1995–1998 | Lexmark International, Inc. 1984 | Black trackpoint, two connectors for keyboard and mouse |
| 06H4173 | Buckling spring | No | No | PS/2 | Yes | ? | Unicomp | 1998–1999 | Unicomp, Inc. 1984 | Industrial PS/2 trackpoint, two connectors for keyboard and mouse |
Note: The manufacture dates are approximate.