The line between beefy external hard drives and sleek USB thumb drives is blurring, and nowhere is that more apparent than in Western Digital’s new My Passport Essential external hard drives. WD says that these new models--which come in 320GB ($99), 500GB ($149), and 640GB (pricing and availability not available) capacities--are 20 percent smaller than previous My Passport Essential portable drives. Measuring 0.6 by 3.0 by 4.3 inches and requiring no external power source, these drives are definitely shirt-pocket-friendly and ready to travel.
The drives come with built-in backup software, and they support up to 256-bit hardware encryption for locking down your data. Except for the 640GB version, the new My Passport Essential models are available now.














