Hardware Keylogger is a medium external device, plugged into keyboard socket or buit-in. The function of the device is to record any key pressed each time thus creating in its internal Memory copy of the text entered by the keyboard. the text recorded in keylogger`s memory is entirely readable, since the keylogger puts together all Signs recorded in its memory and forms sentences out of them. Another fact worth mentioning is that the device is able to identify functional keys pressed by the user. device has its internal memory which is not dependent by any means on the computer`s work. Can store specified number of signs in the memory for anytime long. The number of signs is dependent on the size of memory used in the device. Example memory size = the number of pressed keys 512kb = 512000 pressed keys = 3 month period of intensive typing (when working eight hours per day).

Features:
Large 2Mb memory capacity, allows for 6 months of keystrokes to be recorded under normal use. 
Time and date stamping for legal use 
No new software to install or learn. 
Windows and Linux compatible 
Undetectable from security scanners 
The device can be unplugged for retrieval of keystrokes on another computer 
The keylogger does not use any system resources 
2Mb Memory capacity
The PS2 keylogger can save up to 6 months
Time and Date Stamping