For its newsletter subscribers only, Newegg offers the Seagate Backup Plus 3TB USB 3.0 External Hard Drive for Mac or Windows, model no. STCB3000900, for $119.99. Coupon code "EMCWWVL26" cuts the price to $89.99. With free shipping, that's $0.03/GB, $6 under last month's mention, and the lowest total price we've seen. (It's a current low by $30.) It's compatible with Mac OS and Time Machine.

Although Newegg suggests the model no. is STCB3000901, Seagate confirms the model no. is STCB3000900.