StarTech.com 1-Port USB 3.2 Gen 2x2 PCIe Card, USB-C 20Gbps PCI Express 3.0 x4 Adapter, Data Only, Windows/macOS/Linux, TAA

I have an Asus Z890 TUF WIFI motherboard and no matter what I attempted, I can't get any better than HDD transfer speeds from any rear USB port, including the Thunderbolt USBC port. I adjusted the BIOS, tried different cables and different NVME enclosures. The case front Thunderbolt USBC port works as expected.I thought about buying an ASUS ThunderboltEX 4 but would need to remove my case fans mounted on the bottom of my case and read about all reviewers who had difficulties to make it work. Then I stumbled across this StarTech 20Gbps card, which is Plug and Play. It worked after Win 11 booted and I installed the Intel NPU driver, where my PC with the Intel Driver app instructed me to do. Easy and simple! I wanted to get 40Gbps but this card is the same speed as my front case Thunderbolt port.

I used this to breathe some life into a very old X399 desktop system. I was looking to extend KVM + fast IO to the desktop over a mix of 3m and 4.5m cables, with the 4.5m being an OWC optical USB4 cable. For whatever reason the onboard 3.1 port on my X399 Designare only worked at USB 2 speeds when using the optical cable. Speeds were as expected with a 3m traditional copper cable but I couldn’t quite reach a convenient spot on the desk with 3m.I decided to gamble on this and it worked perfectly with the optical cable and Caldigit SOHO dock I’m using for desktop USB connectivity. Plug and play, zero intervention required on Windows 11.

I already have a USB C 3.2 Gen 2x2 20Gbps port on my motherboard (Aorus X570S Master), but I found out that the controller runs on a PCIe 3.0 x2 lane, which is not ideal. So I purchased this card thinking I will have two 20GBps port in total, and this being a PCIe 3.0 x4 controller, I'll get the full bandwidth.Installing the card was easy, it is tiny, and worked almost straightaway. I forgot that if I use the last PCIe slot, one of the M.2 slot will be disabled. So I had to move the M.2 SSD from the slot that shares the PCIe lane with the x4 slot to another M.2 slot. Restarted the PC, windows automatically installed the driver needed.Just as I thought, the card works faster than the built-in one, since it got the full x4 lane. It might work even better if I install it in the 2nd 16X slot, but I have a RAID controller installed there so couldn't do that.There was a nice 400MB/s bump, and the Acer Predator 4TB SSD installed in a Yottamaster 20GBps NVMe enclosure reached 2000MB/s on both read/write, which is sweet! Now I have 4 SSDs which can do my backups very very fast.A great card, works very well, and a no hassle installation. Just give it a slot where it can use PCIe 3.0 x4 lanes, and you are good to go. Also, a good 20GBps cable is recommended.

Performs perfectly ty

I recently installed the StarTech.com 1-Port USB 3.2 Gen 2x2 (20Gbps) PCIe Card in my system, and I’m very impressed with its performance. The installation was remarkably straightforward—essentially a drop-in process. I simply inserted the card into an available PCIe slot, and it was recognized immediately by my system without any issues.The transfer speeds are excellent, delivering the high-performance 20Gbps speeds promised. It's been a significant upgrade from my previous USB ports, especially when dealing with large file transfers and high-bandwidth peripherals.Overall, this PCIe card is a fantastic addition for anyone looking to boost their system's USB performance. The easy installation and impressive speed make it a great choice for both casual users and those needing top-tier performance. Highly recommended!

Bough device that had usb3.2 support but my computer only supported 3.1. This caused a problem with the PC bootup hanging sometimes. After adding the card, the problem went away.

Beware Dell's latest Precision 3460. I called in my issue with connecting external Gen 2x2 drives to the front USB-C port in August and they made me do everything under the sun, reinstall windows twice, and spend countless hours with tech support on the phone doing all kinds of useless things. They eventually sent a new motherboard and that did not work either. I got fed up and purchased this and it solved the problem. Dell is still giving me the runaround and making excuses. Great card and delivers on spec.

Finally, after four tries, I found a 20Gbps Pci card that has the speed and consistency that I needed. StarTech and fast nvme's gives me over 20Gbps of speed and it doesn't need an extra power source to keep that speed from bottlenecking. I bought two and I hope to buy three more.