Ocean Technology LLC via Amazon offers the Unitek USB 3.0 to SATA Dual Bay External Hard Drive Docking Station
, model no. Y-3026, for $39.99. Coupon code "F699E58B" drops it to $29.99
. Plus, Prime members bag free shipping
. (Non-members can spend $49 to bag free shipping; otherwise, it adds $8.97.) That's the lowest total price we could find by $10. It features two hot-swappable SATA bays that support SATA I, II, and III drives.