My point is that it's not possible to tell until you try it.
TT's software will make the unit behave differently if it thinks the unit has been connected to a PC - it will ask if you want to "connect to computer" when you first switch on, and it will switch off after about 9 minutes if you don't interact with it in some way.
If I remember correctly, there needs to be a particular resistance across the data pins in the USB to tell the GO it is only connected to a charger. This would probably be in the charger itself, not the cable.
So the original cable you looked at is probably OK, but I was trying to make sure you ask first before you buy, so you have a good reason to be able to return anything if you DO have problems.
As for your new find, they seem to be mainly advertising the USB charger itself, (i.e. how small and neat it is). The cable they supply with it is not really mentioned and you can't even see the multipin connection to the GO properly.
The cable is probably much the same as the one you first looked at, but until you see it, who knows!