Cherry G80-2550

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Cherry G80-2550
G80-2550HPD 001.jpg
Manufacturer Cherry
Features 122 keys, replacement for IBM 3270 terminal emulator
Layouts IBM 3270 layout
Keyswitches Cherry MX
Interface AT and PS/2
Years of production 1990s
Price ~10 EUR used

This keyboard is a clone of the IBM 3270 Emulator and connects to PCs using either the PS/2 or the AT protocol. With the IBM 3270 it shares the same style of labeling, for both the connecting PC and the mainframe computer it connects to. Keycaps are double-shot and pad-printed.


The black legends are mostly double-shot (except for the LED window keys). All blue legends are pad-printed and clear-coated. This keyboard is not programmable. It is possible to use it with either AT or PS/2. Also, this keyboard lacks any functionality of n-key rollover.

Although under the 4 removable blindcaps there are 4 key mounts and PCB traces, closing the contacts does not cause the controller to send any key codes. This might be due to controller programming (see also sister-model Cherry G80-2551).


G80-2550 HPD.
G80-2550 HPD.
G80-2550 HPD.
G80-2550 HPD.
G80-2550 HPD.
G80-2550 HPD.
The caps lock key shows a stylised lock (typical for Terminal layout or French layout on PCs) and a blue down arrow (typical for German layout on PCs).

Known variants

  • G80-2550 HPD (German IBM 3270 terminal emulator layout, black switches)

How to disassemble

For disassembling, see How to open Cherry G80-2100/25xx keyboards.

See also