WDStore offers its Western Digital My Book Essential 1TB USB External Hard Drive, model no. WDBAAU0010HBK-NESN, for the in-cart price of $79.99. Coupon code "WDED69" drops it to $69.99 with free shipping ($0.07/GB). That's $10 under our July mention and tied as the lowest total price we've seen since 2011. (It's a current price low by $20.) It features a maximum data transfer rate of 480Mb/s.