Syba 4 Port RJ45 Gigabit USB 3.0 Network Adapter NIC RTL8153 RealTek SY-HUB24047, Black

After a bit of tweaking to get the drivers to install, it is functioning as intended. I am using the SY-HUB24047 to stream 3 VLAN networks consisting of 32 HD IP cameras. The device is still undergoing testing. The workstation it is attached to is very old and under powered to add anymore than 8 active cameras at once. The workstation is a Intel CORE 2 Quad Q6600 @ 2.4 GHz. 8 GB RAM, a NVIDIA K2200 graphics card. The SY-HUB24047 is running thru a 2.0 USB port. A new and modern workstation (Intel i9 9900K 3.6 GHz unlocked) is being assembled at this time. I added 4 peel and stick rubber feet to give some air space under the hub.

+ Works right out of the box with Linux Ubuntu 22.04 + 4 separated network interfaces are detected + iperf3 shows 112 MB/s transfer speed for each port - Will get hot in operation - Missing AC/DC adapter

So right out of the box, none of the documentation is right. Also, it says it comes with a power supply, even has the picture of the power supply in the pictures of the product,and there was no power supply to be found. It does run on bus power,and it does show up on my PC as 4 separate ethernet ports which is cool but I'm guessing if I need full gigabit on all four ports I'm gonna need the power supply- which as I said was NOT included. AND, Amazon is NO help in rectifying this. It's either "return the whole thing" or just "forget about it". Sad part is I was testing these to deploy to our team of about 30 field technicians...we'll be moving on from here.

I purchased 3 of these for a ProxMox cluster, and with some tweaking around the terrible Realtek drivers, these things are SOLID. My only complaint is the heat they produce. The metal case is hot to the touch, enough that I can't keep my hand on it. Will probably need to rig up a heatsink on the top of some sort. Putting some aluminum 8mm heatsinks on the chips wasn't enough, as the board inside is actually upside down, so the heatsinks are face down. I'll get creative soon. I took half a star away for that. The other half a star is because one of them was missing some pins on the USB3 section of the connector, so would only work with a USB2 cable. I returned for a replacement, which works. All is well now on the cluster.

Just plugged in, doing nothing, this thing is cooking at 127°F. Can't even touch it when under load. Maximum throughput also is hampered, topping out at 2Gig across all four ports. By contrast, using some 4x dongles and a generic USB3 hub, max temp was 108°F and I was able to push 940MBit simultaneously across all links (tested via iperf3)

Seems to work as described. I'm sure it will come in handy. Mine didn't come with the 5V PSU that's supposed to be included.