Newegg offers the Mediasonic USB 3.0 to Serial ATA Dual Docking Station for $34.99. Coupon code "EMCREBB32" drops it to $16.99. With free shipping, that's $33 off and the lowest price we could find, although we saw it for $2 less with a rebate in January. It supports up to 8TB per drive. Deal ends April 17.