Newegg offers the Seagate Backup 6TB USB 3.0 External Hard Drive, model no. STDT6000100, for $179.99. Coupon code "EMCEJFT29" drops it to $159.99. With free shipping, that's tied with our December mention and the best price we've seen. (It's also a current low by $15.) It features mobile backup via an app for both iOS and Android devices. Deal ends May 15.