Before buying, check the motherboard of your computer, has a free PCIExpress harbor (not to be confused with a PCI port) and the ability to connect a socket "molex" Power to the USB card. Inserting the card in the slot is going well and power connection via molex connector. OK (the documentation is in English). The motherboard is an Asrock (temperamental) and the operating system is win 7 32 bits. We start the computer, the device is detected, it attempts to install the driver supplied on the CD to win 7. The driver will not install the device and therefore does not start. I was warned by my previous readings. I find the driver that goes on the Internet. After 1 hour of testing, I finally found ... the address for download: [...] (choose according to its operating system and start over by removing incompatible drivers before the operation) Note that the motherboard USB 2.0 works as well as USB 3.0 provided by this card. Speed comparison test between the 2 types of USB, hard disk download 10 pictures (75 MB total) from a first key connected usb 2 usb and then 3. Recorded speed: 4 MB / s USB 2 and 18 MB / s for USB 4.5 x 3 is faster for usb 3 - not bad with this configuration which dates from 2008. 3 stars to warn future buyers - the card works correctly and does its work. PS: do not forget to run the driver installation as administrator (right click on the file and run as administrator) After 3 days of use, nothing works ... not reinstall the driver, I'll pass the card in another computer, because my motherboard is very temperamental and diet is a low-end. I finally identified the problem, there is resource conflict between the PCIe card and network device motherboard. I start the installation by removing the PCIe card and installing the driver that is well (I install the driver before inserting the card into the PCIe x4 slot). I rebooted and I disable the network driver, I replace the PCIe card and I restarts, the driver is installed. I reactivates the network device and everything works again, until when? ... Answer: until the next reboot of the computer! Therefore incompatible with my product configuration ... I will try on another computer ... The card was placed on an Asus P5Q motherboard in a slot PCIe x 1, the material was recognized in Windows 7 64-bit driver installation from the CD provided worked perfectly. Conclusion: Attention is unstable on some configurations - the reason? Placed on a PCIe x4 slot (x1 best on a pcie), capricious motherboard (Asrock), low-end power, ... impossible to know.
