Syba 2-port SATA 6.0Gb/s PCIe Controller Card
»www.microcenter.com/product/3830 ··· ler_Card
I've got a few of these. You may need to add some tape to the connector to make it fit tight. There about as fast as you can get and use the ASMedia controller. Be aware that PCIe 2.0 1x can only run one port full speed at a time. You will have to avoid cheap to fix this limit.