That's the thing MD support isn't responding to my email...
I have found an Amazon listing for the none backlight 2M and in the pictures it shows the POM capes there is also a listing for the LED version with PU caps for $40 more. The cost jump matches up with MD. MD has a $30 price diff between LED and none LED, I'm thinking a good part of this cost might be the PU caps ~$35 seems rather expensive for just adding LEDs in a factory run.
On the other hand, there is a Newegg listing for what as far as I can tell is a 2m with MX Blacks and no LED, according to the pics it has POM but according to the description it has PU caps.
P.S. It this sounds a little incoherent or disjointed, I just woke up and am in bed, brain no work so good yet.