4 Channels, 2 Output Plug-in                           (replaced by AKRX62-P)

6 Channels, 2 Output Plug-in

4 Channels, 2 Output Hard-wired                        (replaced by AKRX62-S)

6 Channels, 2 Output Hard-wired

4 Channels, 4 Output Hard-wired                       (replaced by AKRX64-S)

6 Channels, 4 Output Hard-wired

26 bit Wiegand, 4 Channels, 4 Output                       (replaced by AKRX64-W26)

26 bit Wiegand, 6 Channels, 4 Output