For those with Fort Knox-level security needs, the Kingston Ironkey Keypad 200 is a solid bet, while the SanDisk Ultra USB Type-C is a budget-friendly companion for daily data shuffles.

Plenty of USB storage keys are on the market, but Ironkey is the first to use military level encryption. Sold in 1GB, 2GB, and 4GB sizes, the key features a processor called the Cryptochip ...