Western Digital offers its refurbished Western Digital 3TB My Passport Ultra USB 3.0 Portable External Hard Drive in Blue for $89.99. Coupon code "DNAUG17" drops that to $71.99. With free shipping, that's $8 under our mention of a new unit from a month ago and $58 less than you'd pay for a new one in any color today. It features 256-bit AES hardware encryption and WD Backup software. Deal ends August 31.

Note: A 6-month Western Digital warranty applies.