QSW-2104-2S-A-US: 2.5GbE RJ45 & 10G SFP+ Plug & Play Network Switch

Perfect desktop switch to connect a workstation 10G and have a 10G backhaul to the rest of your network. Tried it with 10G single mode and multimode transceivers and DAC cables without a hitch. A pair of these let me upgrade my network to 10 and 2.5 G and everything is running great.

I've been using this low wattage switch for over a year and it just works. No issues at all with the SFP+ sockets.

If you have a 10 Gb/s backbone for your local network, this device works very well as a fiber converter with devices that are only 2.5 Gb/s or slower. Very quiet and it has not gotten hot. Been using it a couple of months and there have been no problems.

Pretty good so far. Plug and play, uses 4w on my powermeter (2x10gbps, 2x1gpbs), produces no noise because no fan and (the exterior) never got warm enough for me to think it was overheating, would stay below body temperature. Only had one issue: one of my computers (connect-x3) hung and the switch was power cycling forever while that computer was still hung and connected. This has only happened once and I don't know which started the issue, but the switch wouldn't stop resetting while the computer was in the broken state (which affected other machines). Resetting the computer fixed it and haven't replicated the issue. In a home environment this isn't an issue, but might consider this if you have remote computers you needed to manage.

This worked great to bridge my NAS and Router to my modem. Affordable and there’s a variety of styles. I have SPF so that’s what I chose but they have RJ45 Copper versions as well. If you don’t need to trunk/aggregate anything this is a stable solution. Has been up and running for over a month now.👍

Put this switch in place to bring 2.5gbps ports to my core switch without wasting 10gbps SFP+ ports on my more expensive switch. Works great. Haven't tried an LACP link with the 10gbps ports because I am pretty sure this switch doesn't support it. Not a huge problem... if I ever need it I'd buy a second of this switch and set up NIC teaming/failover on my client systems.

Update November 2023: Perfect uptime for 7 months in a row and counting! Original review in April 2023: I cannot comment on tech support or the old version of this switch that is no longer available for sale, which some people apparently said disconnected all the time because of loop errors or whatever. I'm writing about the "QSW-2104-2S (NEW)" version, which "simply works." No real configuration, it's just an unmanaged switch where you jam all your random stuff together and have the switch deal with it. I'm using both of the SFP+ 10G ports (desktop, NAS), and two of the combo 1/2.5G ports (connecting backup computer and my router and from there the modem and internet). No disconnections or heat problems or anything that I can tell after a couple of months. I'm happy with it.

Worked fine for about a year. Now it throws loop errors and constantly reboots. I have 2 of them daisy chained from a QNAP managed switch (managed one works fine). Devices that throw loop error are Samsung TVs, Dell dock with no laptop attached and 2 multi adapters i use as DeX dock for Samsung phones without phones attached. Whwn a loop is detected it constantly reboots and soes jot stop rebooting until those devices are disconnected. I bought other brand switches to replace these, NEVER buying QNAP unmanged again.

good value of money for 10Gb SPF+ network, connectivity is good, and speed is good.

Used a DAC to attach it to my UDM PRO and it worked immediately out of the box .

working perfect , took time for ship but ok

worked flawlessly and is quiet

Good. As Described!