Ebay offers WD - easystore 20TB External USB 3.0 Hard Drive for $279.99 (reg. $449.99) with free shipping.

Product Description:

Back up important files securely with this black WD easystore desktop hard drive. The 20TB capacity provides ample space for archives and videos, while the USB 3.0 connectivity provides broad compatibility with most Windows and Mac devices. This WD easystore desktop hard drive features plug-and-play functionality for a quick, simple setup.