As Stalion says the flavour of cable will make no difference if your PC can only supply USB 1 speeds. If you have a USB 2 card fitted and want to use new peripherals which are set up to use 2.0, cable makers, such as Belkin, would have us believe that there "is" a difference in performance between a USB 1 and a USB 2 cable, and packs are marked accordingly.
Whether the cable itself actually makes much difference I don't know, but know plenty of AV & HiFi fans who would argue it does in their fields.
Personally, to maximise data flow between a 2.0 card and new kit, I would not risk the boat for a happ'orth of tar and would buy a 2.0 cable.
But I'm always a sucker for the latest thing and flash packaging !
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