Meet the Autothysis128t: a 128GB SSD Self-Encrypting Drive with 256-bit AES hardware encryption and 2 factor authentication that is computer independent. The drive fits inside your computer but you can also use it externally. What sets this self-encrypting drive apart from the others is its built-in GSM capability. That allows you to destroy your data on demand. You can perform remote fragmentation of the NAND flash storage within the device.
Data destruction can be triggered using a SMS kill message, the tap to destroy function in the token, low battery level, removal of the drive from a PC, and any tampering. Too many wrong pin code tries also lead to your data getting destroyed. The drive costs a ton, but you can get a GSM subscription for £29 a year.