Keepkey - A Simple Private Bitcoin Vault

KeepKey is a USB device that stores and secures your bitcoins. When you entrust KeepKey with your money, each and every bitcoin transaction you make must be reviewed and approved via it’s OLED display and confirmation button. It now becomes nearly impossible for virtual attackers like malware or viruses to steal your valuable bitcoins. [buy]

KeepKey works with the bitcoin wallet software on your computer by taking over the management of private key generation, private key storage, and transaction signing.

KeepKey generates your bitcoin private key using its hardware random number generator combined with randomness provided by your computer. Once your private key is generated, you are given the one-time opportunity to write down a backup of your KeepKey in the form of a twelve word recovery sentence.