As one of its daily deals, Best Buy offers the Seagate 2TB FreeAgent GoFlex Desk USB 3.0 External Hard Drive in Black, model no. STAC2000106, for $99.99 with free shipping. That's $0.05/GB, $5 under our September mention, and tied as the lowest total price we've seen. (It's a current price low by $10.) Sales tax is added where applicable. This drive features a GoFlex Desk USB 3.0 or 2.0 adapter and is backwards-compatible with USB 2.0. Deal ends today.