Systematic Development Group has released an ultra-secure portable flash drive, fitting a full PIN entry keypad to the USB stick. The Lok-It Secure Flash Drive from  comes in two versions, the simpler of which allows five-key PINs to be entered to gain access, with a more sophisticated version featuring 10 keys.

Apart from both using 256-bit AES encryption to secure data, both drives remain encrypted until the correct PIN code is entered at the point it is inserted into computer, which can be Windows, Mac or Linux. Each drive supports two keys, one for the user and one for an admin. [read MacWorld]

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