1tb micro sd card for £12?!!!!

Gidster London, UKMember Posts: 224
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UK deal website Wowcher has a promotion for unbranded microsd cards at impossible prices. I know there are plenty of fakes on Amazon and eBay that format at a fraction of the size printed on them, but I'd expect the selected deals on Wowcher to be more controlled. 
These are the prices (plus £1.99 P&P)...
  • 32GB - £2.50
  • 64GB - £4.50
  • 128GB - £6
  • 256GB - £8.50
  • 512GB - £10
  • 1TB - £12.50
The cheapest branded 512GB I can find on Amazon is £88.12 (which is pretty damn good, maybe too good to be believed - but it is Samsung and 4.5stars). And the only 1TB is £454. Are these even supported by any devices? 
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