I am excited to report we just added the Rocsecure ROCBIT lines of secure encrypted hard drives by Rocstor.  Both mobile 2.5" and desktop 3.5" drives are available. 

From Rocstor:

"The Rocsecure Rocbit 3 external hard drives are industry's most versatile, Real-Time Hardware Encrypted storage solution available. Rocbit 3A, USB2.0 and FireWire 400 Combo drives offer security-sensitive users a wide range of NIST certified DES (Data Encryption Standard) and TDES (Triple DES) encrypted algorithms. Rocbit 3.5" drives are designed with DES/TDES 40/64/128 or 192-bit Real-Time Hardware data encryption security performance which effectively intercept, interpret, translate and relay IDE data commands to and from disk drives in "Real-Time". Rocbit 3 products are designed with patented Anti-Shock hard disk protection. Rocsecure drives offer the technologies you need to keep you data secure and safe.

Please visit our encrypted hard drive section for details and ordering.