The Aperture M works like this,
- The USB 2.0 cable will work the SD Card reader section only.
- The USB 3.0 cable will work the USB 3.0 ports only.
The USB 2.0 cable will plug into the USB 2.0 headers on the motherboard. The USB 3.0 cable requires a USB 3.0 header on the motherboard in order to work. If you do not have one, you can use an adapter like this one, USB 3.0 to 2.0 cable. The speeds will not be the same, but you will have use out of the ports.