Digital cables are key in various audio set-ups and in our experience you can buy better quality than a free bundled wire. We've rounded up the best options out there in the world of optical, coaxial and USB...
Best USB cable under £50
Supra USB
Supra USB 2.0
Our Rating 
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Tested at £29

If your system includes an external DAC, then in our opinion, a decent USB cable can make quite a difference. This Supra cable doesn't look particularly special, but it's an affordable, terrific performer.

MORE: Supra USB 2.0 review

Best optical cable under £50
QED Performance Graphite Optical
QED Performance Graphite Optical
Our Rating 
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Tested at £40

This Award-winning cable is fantastic value for money and better than a free bundled wire. If you're running a CD transport into a DAC, or perhaps an older games console into a home cinema amp, then we feel it brings more than enough sonic improvements to make it worth your while.

MORE: QED Performance Graphite Optical review / compare latest prices

Best coaxial cable under £50
QED Performance Coaxial
Our Rating 
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Tested at £30

Although coaxial connnections aren't quite as common as their optical equivalent, the beneifts a cable upgrade can bring still apply, and this QED offering is a great option for the money.

MORE: QED Performance Coaxial review / compare latest prices