Newegg offers the Western Digital 4TB Serial ATA 6Gbps Internal Hard Drive, model no. WD40EFRX, for $175.99. Coupon code "EMCPEHA24" cuts it to $169.99. With free shipping, that's tied with our mention from two weeks ago as the lowest total price we've seen. (It's also a current low by $3.) Coupon expires May 30.