UPDATE: Many users are reporting cancelled orders due to a pricing error
Amazon have now started emailing to advise of the cancellation and are giving $30 vouchers per order. You can check your coupons here. For the record my order of 3 was cancelled and I received the $30 gift voucher too. The drives would have been great but I'm also pretty happy with this compensation. Congratulations to anyone who gets their order delivered.
Insane price for the 10TB WD My Book external hard drive. Limit to 3 per customer, and remember to use cashback. I grabbed 3 for $389.52 + Free Delivery with Prime.
Auto backup with included WD Backup software and Time Machine compatibility
Password protection with hardware encryption
Trusted storage built with WD reliability
USB 3.0 port; USB 2.0 compatible
3-year manufacturer's limited warranty
Some people are seeing prices over $400 and the item being listed by a different seller. This could be due to a variety of reasons such as cookies, account preferences or perhaps they are not logged in. You can append ?smid=A4XRJ8S0WXSO0 to the URL or by using the "Other Sellers on Amazon" widget to choose Amazon US as the seller.