Generic 4 Port USB 3.0 PCIe Controller Card, Compatible with PCIe 2.0, USB 3.0, 5Gbps, XHCI 1.0, Molex 4pin Power, Part Number 2103-794782, For PC, Printer, Storage

The product is easy to install. No issue with the hardware. Win 11 detects automatically. You need molex to sata power cable converter to install. I had few spares with me. USB ports are study and well built. True 3.2 USB speed checked. In this price one must buy.

Really a good product . I'm using this for almost 6 months. No issues. Before 3.0 i could get only 20 mbps speed. Now my read and write speed is 100+ Mbps. Worth product

1. Does not perform much as described but in my PC at 2.0 port write speed is 12-14 MB/S, after installing 3.0 card write speed is almost 17-18 MBPS which is almost+50% but not as much as described 5gbps( or 600MBPS) NOT EVEN 100 MBPS. ( I USED WD SSD)2. HEATING PROBLEM - MY USB PEN DRIVE HEATED TO MUCH AND ALSO THIS 3.0 ADD ON CARD TOO.3. WORTHY ? - I DON'T THINK SO. BUT NO OTHER OPTION AVAILABLE IN THE MARKET at this price. MAX WRITE SPEED IS 20 MBPS, read speed UPTO 80 MBPS- WORKING BETTER THEN 2.0 USB PORT IN READ4. It does not allow my PC in sleep mode, even you must switch off POWER supply instantly after shutting down the PC either it will restart automatically,5. It does not support mobile usb tethering. Working Only one usb port at a time, if you are using one port then 3 other are useless.6. It's a different product shown above or in image shown by amazon or seller as it doesn't have 4 pin power supply,7. Overall please Go for other product this is the waste of money.

I have been using this adapter for 2-3 weeks and it kind of works. I had an old PC with USB 2 ports and after adding it in the Pcie port and installing the software in the disc, it recognises my USB 3 hard disks. But it only works with my 2TB HDD properly. If I use my 4TB HDD with it, it causes read errors and doesn't work properly. I'm not sure why it's happening and it would be helpful if the seller can help me regarding this. I haven't used with any pen drives so can't comment on that. I would only recommend this if you have no other option and you really want USB 3 ports.

It took me awhile to figure out how to get it connected and working (very basic hardware knowledge). After some online search got it figured out. Transfer speeds around 120-130 MBps. I'm happy with the purchase.

Easy to install and no need of driver in Windows 10. The VIA USB 3.0 eXHC hub is appearing automatically. Though the title says " ... Card Adapter Molex 4pin Power", this PCIe card is coming with SATA power connector.

Does not work with WIndows 11 . Drivers are provided , no drivers available online which match the product. Hardware information also not provided so that a suitable driver can be downloaded to make it work, System recognizes it , but does not work at all

When connecting a single drive (1 port in use, 3 ports empty), getting sustained 140 MB/s read and 55-60 MB/s write speeds on my USB 3 pen drive. This is same as what I get from my motherboard's native USB3 port using same pen drive, so this is all fine.When using two ports in parallel (two drives connected to 2 ports, 2 ports are free), getting sustained 140 MB/s read speed in each drive (total 140 + 140 = 280 MB/s across 2 drives).For write speeds, when writing parallely to two drives connected to two ports, for most of the time, the speeds will be the maximum of each drive. Rarely, it will be fall below the maximum.Haven't tested with 4 ports parallely being in use with USB3 drives, hoping that it will be same in that configuration also.Overall, satisfied with the product.