With the itty-bitty solid state drives found in today's high-end computers, an external storage solution is almost a must-have for a mobile household. Western Digital's My Passport packs 2TB of storage space along with USB 3.0 for 5-Gbps transfer speeds, compatibility with Macs or PCs, and a bevy of useful WD software features, including disk encryption and password protection. Best of all is the price: Just $140 with free shipping rather than its usual $180 cost.

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