Where can I get a USB card reader (RFID) and cards

  Purple Sue 19:37 31 Dec 2016

I have borrowed a card reader from a friend, but cannot buy them anymore (click here - it worked so well, plug it in and when you tap a card (bought for it) it puts the number in a cell in excel (with macro's then the magic works). It is for a cycling event (really helps with signing people in and out) - does anyone know of anything similar, or where I can get them from?

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