74 keys regular POS keyboard
Key's lifetime > 10 million times
Keyboards are backed up by thick metal frame
Support DOS, Windows9X/2000/ME/NT/XP
Support to set electronic key per request
Interface: PS/2 / RS232
Working power: +5V/DC+/-5%
Working current: <300mA
Size: 395 x 160 x 40( mm)

Remarks:
It can be done to programmable KB per request ( 20 Pgrm keys per E2 PROM to save data to 100 years without battery)
Also it can be added Magstripe card reader