Review on 💻 Ableconn PU31-AC-2 USB 3.1 Gen 2 (10 Gbps) Type-C and Type-A PCIe x4 Host Adapter Card with ASMedia ASM3142 Chipset by Eric Sharp

Note: This rating has been upgraded from five stars to three stars as per the updates. The onboard USB 3.0 port on my Dell Precision workstation delivered low frame rates for a connected microscope camera. Internet searches have revealed other users with similar problems but with no workable solutions. My attempted solution was a USB 3.1 PCI-e card. I plugged it into the appropriate slot and connected the camera. I had to reboot the system to activate the driver and recognize the camera. After that, however, high frame rate, as specified in the camera data sheet. ***UPDATED May 22, 2019*** I noticed that during PC hibernation the device (ASMedia USB3.1 Extensible Host Controller) was missing when the PC later woke up. Required to restart the computer to get the USB3.1 device back. Further investigation by Device Manager revealed another device connected to ASMedia, the root hub. This device had power management options that were set to "Turn off this device to save battery" by default. Disabling this option allowed the USB3.1 device to survive PC sleep mode. ***UPDATED May 23, 2019*** Well, it wasn't that easy. After I thought everything was fine, the AsMedia USB 3.1 interface disappeared completely and didn't come back even after restarting the PC. After lots of experimentation with PCI bus utilities etc. I've come to the conclusion that the original "Renesas USB 3.0 eXtensible Host Controller" built into the workstation is somehow masking my new USB 3.1 PCI-e card. So I disabled the Renesas device (in Device Manager) and whoops! ASMedia USB 3.1 devices are back. They even survived a PC sleep/wake test cycle. So far so good, but I'll keep an eye on it. ***UPDATED May 24, 2019*** Unfortunately the PCI-e card disappeared again from Device Manager the day after the success documented above. . (Yesterday's workaround still applies.) Well, this forced me to stop using this card on my Dell workstation to control the microscope camera. I moved the USB 3.1 card to a Dell OptiPlex system (which only had USB 2.0 ports) where it works fine for general use. I am currently still looking for a solution to connect a microscope camera to Dell. Workplace. I'm currently looking for USB 3.x PCIe cards that are NOT dependent on the ASMedia chipset.