Ocean Technology via Amazon offers the Unitek USB 3.0 to Serial ATA Adapter for $9.99. Coupon code "RRFDMOGD" drops it to $7.99. Plus, Prime members bag free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $8.38.) That's the lowest total price we could find for a similar adapter by $2. It features transfer speeds up to 5Gb/s.