I found a second usb cable that fits that was used for my external hdd caddy, impatience got the better of me and now my PC is hooked up via the UPS, done a fair bit of tidying up as well as was a mess of power cables even covered in some dust as well, right now its just the PC fed by the UPS and I also temporarily have some things disconnected since I have plugged in the UPS direct to the wall socket (as said by the manual), until I get my kettle to power socket convertor there will be nothing else fed by the UPS, but I see its very handy to see the amount of watts my pc is using.
Circa 60 watts when idle. Circa 100 watts low GPU load, circa 130-160 watts in a game. Seems my 600 watt PSU is a tad overkill. :p
I ran a self test, and when it switched to battery wow the UPS is noisy, a pretty loud buzzing noise, didnt sound healthy, but maybe thats normal?