QPAD MK-70 Review @ Vortez
 

Though the MK-70, in name, sits just below the MK-80, in reality it is closer to the MK-50 in features meaning that is does not have the integrated audio or USB ports like the MK-80/85, but unlike the MK-50, it has blue LED backlighting. As a package it does away with the extra key caps, key cap remover and wrist pad that is included with the MK-50, but as a consolation it is supplied with a USB>PS2 converter so you can access the full NKRO feature out the box.

http://www.vortez.net/review.php?id=985