I recently bought a T1 1TB USB 3 SSD disk from Samsung. It works nice and fast on my laptop's USB 3 ports but on my desktop with a Z68X-UD5-B3 motherboard I can't get the USB 3 ports to run at USB 3 speed. Current speed is around 30Mb which is way too low. I tried all sorts of bios settings (F10 is the latest bios) but it doesn't make a difference. I'm running Windows 10 64bits which has a build in driver for USB3. Are there any other things I could try?

I'm considering buying an USB 3 PCIe card. Any experience with that? Does that increase USB3 performance?