Ocean Technology via Amazon offers its Unitek USB 3.0 to SATA Dual-Bay Cloning External Hard Drive Docking Station in Black for $34.99. Coupon code "Z7V35JNQ" drops it to $24.49. Plus, Prime members bag free shipping. That's the lowest price we could find for any color by $10. It supports 2.5" and 3.5" drives up to 8TB and features data transfer rates up to 6Gb/s, offline cloning, LED indicators, 30-minute auto sleep function, and 3.9-foot cable.