I am using a MX2 (LK202-24-USB) I got in. And I'm trying to hook up some LED's. I Bought a single LED from radio shack, a 3.7 Volt (4.5 Volt Max) with a foward current of 20mA, 30mA Max.

Now, I know the low power GPO's are 5 Volts, I read that in this forum. So I Asked the RadioShack guy what ...