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USB Kill Cashback

The USB Power Surge vulnerability is a common flaw in products with USB connections. When plugged into a device, the USB Killer rapidly charges its capacitors from the USB power lines. The USB Kill has been designed and tested to
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Get Cashback easily

  • Join for FREE with an email and password
  • Search for a store
  • Click the "Start Shopping" button or choose a coupon
  • Complete your purchase at the store's website
  • Cash back will be added to your Extrabux account!

How to get cash back:

  • Click a Coupon or click Start Shopping to earn 8% Cash Back at USB Kill.

  • Complete your purchase. If you use a coupon, your discount will be applied during checkout.

  • Your cash back will be added to your Extrabux account in 1-7 days.