Aleratec 4 Port SuperSpeed USB3.0 PCI Express Adapter 3 ext 1 int and SATA Power - USB 3.0 provides speeds up to 10x faster than that of USB 2.0 - Add four USB 3.0 ports to your computer; 3x External, 1x Internal Type A - Low Profile form factor with brackets for Slim and Full size systems - SATA power connection provides up to 900mA per port -Chip Set NEC UPD720201