StarTech.com 4 Port USB 3.0 PCIe Card w/ 4 Dedicated 5Gbps Channels (USB 3.1 Gen 1) - UASP - SATA / LP4 Power - PCI Express Adapter Card (PEXUSB3S44V)

Finally a card that works! This is my 4th (!) USB-3 card, and the first one to work AS IT SHOULD. I installed it into a 9-year-old Dell Precision T5400 desktop. It works like a dream - very stable, doesn't cut off in mid-transmission nor throws any other surprises. It is all to do with the fact that this card (Model PEXUSB3S44V) is a 'quad bus' card - it has 4 separate chips (4x Renesas [NEC] uDP720201) and 4 separate large capacitors - one for each USB port. The cheaper cards have only one chip shared between 4 USB ports, and this causes trouble. In case of my Dell I had power issues all the time with other cards - disconnecting drives, cutting in mid transfer etc. This one just works fine and in spite of the limitations of my old motherboard I get speeds up to 320 MB/s through this card (between SSDs inside the desktop and fast external RAIDs via this USB3 card). Optional (but absolutely recommended!) power connection to the card can be done by either a SATA-style power connector or older type MOLEX-type. The card then delivers up to 900mA of 5V current per port - sufficient even for my power hungry 2TB WD Passport (USB3). Be warned though about USB2 devices - the card only gives them 500mA per port, and my old disks require more power (via a splitter cable) from another port (can be USB2). It is an expensive card, but for me worth every penny. [One more comment: if you have a Dell like mine, avoid USB3 cards based on VIA 800 (or VLI) chip - this machine is 'allergic' to them, but Renesas 720201 works fine.]

Bought this as I was having connection issues with my rift and it solved it. I had worked out my USB keyboard and mouse along with the rift was drawing too much power from my USB. This draws its own power from your PSU. It's pricey but it was going into an expensive pc and was advised by tecky friends to use this manufacturer. Only issue was the ports are vertical so when in the case I couldn't push the USB into the card fully. I had to cut out part of the case.

I spent hours trying to get this card to work, as the driver just would not install . I was about to give up and return it to Amazon when, on a whim, I decided to give it a quick try in another slot (PCIe x16, exactly the same as the slot it was already in), and the driver installed in a couple of seconds! The first slot was working ok, as I'd taken a dual port NIC out of it minutes beforehand, but the USB card just didn't like it.Contrary to other reports, the card also fits perfectly in the case openings - the trick is simply to leave the fixing screw slightly loose, fit USB plugs in the two outer ports to centralise the card, then tighten the fixing screw. Easy!

Great product, installed flawlessly but unfortunately I couldn’t access the usb ports in my Fractal meshify 2 case - it would be fine in any PCIe slot except the lowest one, but that was the only free slot I had available.I have returned it and ordered the 3+1 usb port from StarTech instead as the ports are arranged vertically.

I couldn't get this to work with either Linux or Windows, most likely due to driver compatibility issues.On Windows, the USB host device fails to initialize and returns a Code 10 error.On Linux the driver loads seemingly without problems, but the connected USB devices don't appear.If you specifically need a multi-bus USB adapter, e.g. for passing different ports to different virtual machines, get the Sonnet USB3-PRO-4PM-E. It may be more expensive, but unlike this card, the Sonnet just worked for me out of the box on both Windows and Linux.

Found out about this card and grabbed it for an event that required four camera feeds. This worked perfectly - I had four Elgato Facecams plugged in, one per port and each using a 5m long USB A->C Cable. No issues at all over the 12+ hours it was all set up for.Important to note, you will have to make sure that you've got a PCIe x4 slot (and that it's actually running at x4 speeds, check your motherboard manual!) and power it with the SATA (or if you've got no other choice, Molex) power cable. If your PC supports it then this will most likely solve any USB power/bandwidth related issues you're running into!

Card works ok. Haven't tested the speed but devices work normally in it in all OSes Win10, Mac, Linux with exception of USB mouse and keyboard on mac that are troublesome and best avoided. Main issues with the unit is the quality of the bracket. However the bracket where the screw goes in to fix it to the case required some grinding to get it to fit properly. The card drops down and you can't get the usb plugs in. The hole where the screw goes in does no go low enough in the bracket so I had to grind it with a Proxxon. I also had to bend the right angle of the bracket that presses against the case with pliers as it wasn't totally vertical and tended to let the unsecured end of the card droop down meaning half the ports were not usable. Now you can push the card as high up as it will go, have it sit horizontally, and screw it in tightly and the usb plugs just about go in. Rather poor given the price. If you are going to have vertical ports then the bracket needs to be bang on or it won't work. My case is a Fractal Design R6. I contacted Startech US support via live chat and they were totally useless asking me lots of obvious questions and not listening to what I was saying. I contacted the seller StarTech and they were very helpful and agreed to a discount on the item price paid which was very fair. I figured it wasn't worth returning as they'd all be like that. Hopefully they will improve the unit which is otherwise ok.

I have a Corsair 7000D airflow case. It has 4 USB 3.2 gen1 ports on the front header. But my Motherboard can only supply 2 of them. This card supplied the other 2 ports. It was recognized instantly, and windows found the driver by itself. It has 2 ports on the back of the card, but I won't need those. I am only using the internal header to connect to the front panel. It also has a Sata power connecter to supply power for the higher wattage charging standard of USB 3.0 (3.2 gen 1) It was inexpensive and works great.

I have a 13 year old Gateway computer with USB 2.0 ports, and I wanted to upgrade to the USB 3.0 service. I read enough info to make an attempt at installing this Star Tech unit, and I was thrilled that it worked immediately after the install. My Internet download speed increased from +/- '260 Mbps' up to +/- '460 Mbps' .. (with upload speed '12 Mbps' .. no change). I have checked my speed frequently, and it is consistently above at least '440 Mbps'. This is a great product at a great buy !

Works fine as expected. I opted for the model with the SATA power, just in case someone plugs in a high power device. This was the most ports I could find on any USB expansion card. StarTech makes great products. I've been in IT for 20+ years, and I think they make the best niche tech parts out there. They are so much better than the cheaper no name random alternatives on Amazon. StarTech is worth paying a little more. The best part is their support! The chat is great, and you can find downloads and manuals as you need them. That is really important when dealing with technology. I always default StarTech for hard to find and specialty adapters.

I tried 3 other less expensive PCIE to USB cards and they all had issues with drivers, throughput, or both!This card just works and really does deliver bandwidth!It also handles multiple hubs and high power devices perfectly!0 drop outs, 0 latency issues, instantly recognizes anything plugged in!It also has better build quality with the vertical ports - they aren't obstructed by different cases like some other cards I tried!I don't know why I bother with other brands - I always end up back with StarTech.It also has 2 standards for providing power instead of just 1 odd one (floppy power on one that I tried).I highly recommend this card!

In the Windows 10 computer, ready to go. With 2 Elgato and 1 Logitech streamcams no problem. Worked without extra voltage input, I did put an extra voltage in to give the motherboard less stress.Works well with OBS etc. No drivers needed.No problem with the ports, more then enough space to put in the USB cables. So I don’t know why some have a problem with that.Gets a little hot, don’t know how long it will last. If it breaks, I update here.