Step 1: Pry Open the Unit!
Once open you can see it has a short length of cable fitted with a standard USB header plug.
Fortunately the color coding for the power and data lines on this cable were standardised making the adaption to a USB cable easy! - this will become obvious later once you cut up the new "donar" cable.
Phillips head screw driver
Flat blade screwdriver
A "donar" USB cable with "A" type pug on one end
A small cable tie to secure the new USB cable
Step 2: Preparing the Board & Removing the Existing Wiring
Make note of the colours and which pins / area of the PCB where they are routed to before removing the original header pins and cable.
I used my cutters to help with the removal of the header pins, these could be left and you could solder the new cable directly to these but I went for a "direct" connection to the board option - see photo in next step..
Once you have chopped the headers off square to the board, gently heat up each solder pad on the PCB and gently tap the board on the bench to dislodge the excess pin.
Step 3: Preparing the New USB Cable
Strip and twist the strands of each individual connector colour together with your fingers.
Then using a soldering iron "tin" each conductor (5 in total) individually ready for insertion into the PCB
Red - (+5v)
White - (data -)
Green - (data +)
Black - (Ground)
Shield - (cable shield - connect to ground)
Step 4: Attaching the New USB Cable
Solder each wire in place onto the pads
The shield wire can be connected to the chassis or a spare ground pad on the PCB
Using a cable tie secure the cable to the chassis to prevent the cable and connections from being pulled from the Printed Circuit Board.
Step 5: Check Your Work and Re- Assemble
Check that your wiring follows the same "code" as the original header cable and that all screws and wiring are well secured.
when i plugged my unit into a PC running Windows 7 it took a bout 30-60 secs to install a driver and I was away!