Best USB External Hard Drive Deals

Amazon offers the Seagate 8TB Expansion USB 3.0 External Hard Drive for $169.99 with free shipping. That's tied with our July mention as the lowest price we've seen. (It's the best deal now by $10.) It includes a 4-foot USB 3.0 cable.

Western Digital Store offers its refurbished Western Digital 3TB My Cloud NAS Server for $109.99. Coupon code "DNSEP17" drops the price to $99.99. With free shipping, that's the best deal we could find for a refurb now by $30 and the lowest price we've seen. (It's also $50 less than you'd pay for a new one.) It features Gigabit Ethernet, a USB 3.0 port, and WD SmartWare Pro backup software. Deal ends September 30.

Note: A 6-month Western Digital warranty applies.

Newegg offers the Seagate 4TB USB 3.0 Portable External Hard Drive for $104.99. Coupon code "EMCSRKRG3" cuts it to $94.99. With free shipping, that's $5 under our June mention and the best deal we've seen for this drive. (It's a low today by $13.) It features mobile backup via an app for both iOS and Android devices. Deal ends October 7.

Western Digital Store offers its refurbished Western Digital 3TB My Passport Ultra Portable USB 3.0 External Hard Drive in Wild Berry for $89.99. Coupon code "DNSEP17" cuts it to $74.99. With free shipping, that's $30 under the lowest price we could find for a new unit. Deal ends September 30.

Note: A 6-month Western Digital warranty applies.

Western Digital Store offers its Western Digital 6TB My Book USB 3.0 External Hard Drive for $159.99. Coupon code "DNSEP17" drops it to $149.99. With free shipping, that's the lowest total price we could find by $80. It features local and cloud backup and up to 5Gb/s data transfer speeds. Deal ends September 30.

Western Digital offers the Western Digital My Passport Ultra Metal Edition 1TB USB 3.0 External Hard Drive in Obsidian for $69.99. Coupon code "DNSEP17" drops it to $64.99. That's the lowest price we could find by $13, although we saw it for $20 less in July. It features 256-bit hardware encryption and up to a 5Gb/s transfer rate. Deal ends September 30.

Dell Small Business offers the Promise Technology 4TB Apollo PC Edition USB 3.0 Personal Cloud Drive in White bundled with a $40 Dell Gift Card for $239.99 with free shipping. (The gift card will arrive via email 10 to 20 days from ship date.) Assuming you'll use the gift card, that's tied with our February mention and the lowest price we could find now by $40. It features Gigabit Ethernet and a USB 3.0 port. Deal ends September 25.

Western Digital offers the refurbished Western Digital 2TB My Passport for Mac USB 3.0 Portable External Hard Drive for $64.99. Coupon code "DNSEP17" cuts it to $59.99. With $3.99 for shipping, that's $31 under the price of a new one, although we saw it for $12 less last month. It features optional 256-bit AES hardware encryption, USB 3.0, and is compatible with Apple Time Machine. Deal ends September 30.

Note: A 6-month Western Digital warranty applies