Newegg has the ADATA AHD710-500GU3 DashDrive Durable Series HD710 500GB USB 3.0 Water & Shock Proof Portable Hard Drive (Black
) for $90 - $10 off with coupon code ADATA66
[Exp 6/11] - $10 rebate
[Exp 6/17] = $70
with free shipping. Features military-grade waterproof and shockproof construction, and a wrap around USB cable.