PRN Key Display Unit KDU w/ Fischer connector (Premium version)
 
PRN KDU is the best clone KDU on the market and it's packed with features：
Fischer connector - like on the real KDU
Compatible with genuine Harris KDU cable 
The new KDU cable has a magnetic ring, lettering on KDU connector, stainless steel KDU connector scew, safety cap for the Fischer connector. Basically all details that match a genuine KDU cable
Adjustable key mapping
Addition of a four-way control button
Wristband, with the same details as a genuine KDU wristband