Are you talking the the large (3.5") Western Digital Elements External Hard Drive? The 3.5" drives can't be powered off the USB port (if that's what you are ...
... hardware encryption" is the FahanTech Encrypted Hard Drive Enlcosure 2.5-Inch SATA to USB 3.0 External Hard Drive Enclosure with 256bit Hardware Encryption ...
Fantom Drives 500 GB Titanium II External USB 2 0 Hard Disk Drive. I just bought that same hard drive, model number is TFD500U16. And when I opened it, ...