Meritline offers this 2-Port USB 3.0 PCI-Express Controller Card, model no. SD-PEX20047, for $17.99. Coupon code "MLC121ZN" drops it to $12.99. With free shipping, that's tied with our mention from three weeks ago and the lowest total price we could find by $7. It features two USB 3.0 ports, which are also backwards-compatible with previous USB standards. Coupon expires after 200 uses.