Redukcia nie je problem. Problemom skôr bude že nevieš s istotou či tvoj modul dodržiava zapojenie PS/2.

6 PIN MINI-DIN FEMALE (PS/2 STYLE) at the computer.
Pin Name Dir Description
1 DATA Key Data
2 n/c - Not connected
3 GND - Ground
4 VCC - Power , +5 VDC
5 CLK Clock
6 n/c - Not connected