mwave offers the Western Digital 320GB My Passport Essential Portable 2.5″ USB 2.0 External Hard Drive in Charcoal, model no. WDBAAB3200ACH-NESN, for $44.99 with free shipping. That’s $0.14/GB, $8 under our March mention, and the lowest total price we could find by $8. This external hard drive runs at 5400 rpm and has a 2MB cache.

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