Amazon offers the SIIG SuperSpeed USB 3.0 Switch 2-to-1 Adapter, model no. JU-SW0012-S1, for $35.24. Clip the $15 off coupon below the product price to drop it to $20.24. With free shipping, that's the lowest total price we could find by $16. It includes two cables and features data transfer rates up to 5Gb/s.