Newegg offers the Vantec NexStar 2.5" / 3.5" Serial ATA to USB Hard Drive Dock, model no. NST-D100S2, for $19.99. Coupon code "EMCYTZT58998" cuts it to $14.99. With free shipping, that's the lowest total price we could find by $5. It supports 2.5" or 3.5" Serial ATA hard drives up to 3TB. Coupon expires April 17.