newegg offers the ADATA DashDrive Durable Series 500GB USB 3.0 Portable Hard Drive in Blue, model no. AHD710-500GU3-CBL, for $64.99. This $15 mail-in rebate drops it to $49.99. With free shipping, that's $0.10/GB, $10 below our February mention, and the lowest total price we've seen. (It's a current low for this drive in any color by $20.) This portable drive is waterproof and shock-resistant. Rebate ends May 31.