FS-2C-U4-Pro

I just bought this a weak ago, and it has lived up to its ads on what it does. It has two independent usb 3.0 controllers, and both are connected to asmidia pci bridge(hint: it does get close to maximum bandwidth on both extenral ports.) This is an upgrade for me from an cheap 1x pcie febsmart 2 port black model I bought in 2019. That model is now unused, and it also was great. I am giving this product 5 stars, only downside is more then 3 times the price that pcie x1 low profile 2 port card was. So far febsmart products have yet to fail me, and this card due to dual controllers can handle two vga adapters at once. There is another model that has 4 controllers and 4 external ports and 2 usb 3.0 heaaders, but I am warry of that interference with my case due to several reviews saying it blocks the input of usb 3.0 cables due to zero clearence and whatnot. This product the 2 controller does not have that issue, and I installed the low profile bracket and as advertised it does not require power. In the future my plan is to buy a dock and connect to this. When I get it, I will edit this review and report of any problems. EDIT: It works! Wavlink dock usb 3.0 docking station. Using one of the 2 indipendentant controllers, this allows 4 montiors on my desktop with two coming from pc and two from dock.

I have two 5 bay USB storage devices attached to my computer. Each one has 5 12 tb drives and the other has 5 10 tb drives. The USB off of my mother board would only see 5 of the drives, and even then it would constantly lose connection. I then bought a cheaper USB card (around $20) and it also had similar problems. I read somewhere about this product and decided to try once more before giving up. This card worked perfectly. My Plex server has been running just fine on the storage devices for the past two weeks. It shows that sometimes it is worth paying more for something that just works. Very happy with the product. I am buying another one for my gaming PC with a Valve Index.

Bought this to get USB 3 on my old Supermicro X9SRL-F motherboard. dd'd Debian 10 netinstall iso to a USB flash drive and installed Debian to a USB to SATA SSD connected to this PCIe card and it worked right out of the box. Debian 10 install recognized the PCIe card and whats connected to it without any issues.

Used this for my UNRAID setup and it works with no fuss. Only issue was with IOMMU grouping (not a factor of this card) Especially useful for USB devices that act as a bus and don't display other devices until under load. Note: "NOT for Linux. NOT for MAC". This is nonsense meant to protect themselves. It should work for all mainstream linux distos with no headache. Tested on both RedHat and Ubuntu 16.04.

Notice: This product was received at no charge as part of the Amazon Vine program but this is an unbiased review. This expansion card has impressive specs with 4-Ports PCIE USB 3.0 at 5Gbps for Windows and Linux Desktop PCs, 2X Dedicated 5Gbps Channels 10Gbps Bandwidth, built in FebSmart Self-Powered Technology (FS-2C-U4-Pro). The card is a strange design with two of the USB ports being on the front and the other two being on the back side. I guess you have to run a connection cable to ports on the outside of the case to utilize the back side ports. They say it’s “plug and play” but in my case, not so much. It connects to your computer through the PCI slot. I installed the card in the one PCI slot I had available in my case. The pins only take up half of the slot. I downloaded the drivers from the company website, but no go. There’s not even any power in the USB outlets on the card. The indicator lights on the several flash drives I tried showed there was no connection and no power. I’ll admit I’m not a Windows PC power user. I know my way around to do some things, but finding a driver file in the registry and apply that to the card, and to find whether an expansion card is compatible with the slots in my computer is beyond what I can do. That said, I tried a few things, but none of them worked. I went to the Device Manager, but the computer was unable to locate the installed drivers. At this point, I’m not sure if it’s a non-compatible PCI slot, or if it’s because of the card, or because the computer is unable to apply the drivers to the card. It may be a good card or not. My recommendation is this card is best for someone who is savvy about installing cards in a PC computer. 3 stars for not being “plug and play”

Worked great out of the box, plug and play for my Linux box. Since the USB ports are turned I had to bend my spacer brackets on the case to gain full access to the cards USB ports.

computer did not recognize.