Extra data appended to the Y values when issuing `M92` & `M500` I am still trying to dial in my Anet A8.

The Marlin firmware takes too long to scroll through the axis settings when I change them, so I use Repetier Host instead issuing M92 followed by M500.

I noticed in the log window that X goes in as typed but that Y has a *75 after the value i input. Can anybody tell me why/what it is for? I suspect I know what it does just no idea why it is doing it.
*75 is the checksum value, (a method for verifying the integrity of the transmitted information).

RepRap wiki gcode : checksum

There is probably an option to not use/disable checksum generation in repetier/slicers, however this may only be advantageous for use with code run from the sdcard as it is extra processing (and probably less relevant when not being transmitted over serial connection. )