Mikrotik CRS310-8G 2S in: L3 Smart Switch Géré 2.5G Ethernet (100/1000/2500) Connexion Ethernet, Support

This switch has a pretty steep learning curve but will reward your time and effort. It can do wire speed L3 once configured and even some limited local routing. It’s not a router though, more of a small aggregation switch. I use it to attach my 2.5gbps devices to a 10gb backbone that goes into a router/firewall setup. It is loud with stock fan in swOS but routerOS is much quieter. I replaced the fan with a noctua and now it’s virtually silent. This is a perfect router for people who are looking to step up their homelab setup from a basic one or two switch setup to something slightly faster/larger. I think it’s important to set an expectation for the capability of the device beyond a homelab setup as it is complex to configure and will require time to learn, some customers looking for a plug and play solution will want to look elsewhere. TLDR: GOATed device for small/medium homelab and people who like to learn/tinker. Crazy feature set for the price. Not as plug and play as other options.

These are nice switches, and are working very well for me. 10G fiber and 2.5G copper without breaking the bank. The RouterOS on them is quite full featured for such a device as well, with several options for how you want to manage it. I like being able to manage it over a webui, but also being able to manage and monitor it via a full featured ssh environment. They handle everything from 10G fiber down to 10Mbit half duplex with no fuss. The LEDs on these things are BRIGHT! The single fan can get loud, but under normal operation is tends to stay throttled down pretty well.

This switch is excellent. I had an issue where it wouldn't recognize my SFP+ RJ45 module in SwOS, but it worked as soon as I updated to the latest SwOS. I've seen various people say it doesn't perform well in RouterOS, and while that's fair, it's not a router. It's a switch. As a switch it can achieve advertised throughput on all interfaces. I've read things about the fan noise, I am running the stock fan, and with the latest SwOS update, I only hear the fan for a few seconds when I reboot the switch. For the money, this is the best 8 x 2.5Gbps Ethernet + 2 x SFP+ switch that I've been able to find. ServeTheHome agrees with my assessment. Great switch 10/10

The noise level complaints in the reviews have to come from people that are not allowing proper air flow. The fan on mine doesn't even turn on while this is sitting between a firewall and another switch on a network rack in a 68 degree Fahrenheit room, but yes, the fan is very loud and very annoying when it does turn on. I had to use netinstall to wipe and reconfigure my switch just to get it working, which means the instructions and password that came with the pamphlet are totally useless, they may as well say to get this working, install netinstall and wipe it first... Other then that no complaints. AND IT COMES WITH MOUNTING EQUIPMENT, I wasted some filament preemptively printing mounting brackets but it comes with a kit for a 19inch rack. 5 stars, thanks!

DO NOT BUY IT. I turned it on after purchasing it and it worked, the lights were flashing and the cooler was spinning. My mistake, I did not start using it immediately after purchase, but after a while, when a new cooler arrived as a replacement for noisy one, I opened it and one radiator was torn out with the micro controller the second one was in wrong place. This product is not returnable, so I got received a piece of metal for 200$.

First off, many reviews comment about the fan noise. And yes with the stock fan it is noisy. I bought a Noctua NF-A4x20 PWM, Premium Quiet Fan, 4-Pin (40x20mm, Brown) from here as a replacement. It was a plug and play replacement for the old fan. After that it is nearly silent. I don't hear it at all in operation because my PCs make more noise. This really is a great switch. I only use it as a switch and don't try to use it as a router. I use it with VLANs, which can be confusing to setup if coming from most consumer grade networking gear. I got it working but it took multiple hours to get it setup. And I say this as someone who has worked with computer and networking equipment for decades and my job is to write software. But still it was fun to get it figured out and working. Once it is working you can just set it and forget it.

This would be a 5 star unit, if it weren't for the fact that it has a fan and a terrible one, as far as noise is concerned. I was warned of that by various reviews on the web and ordered a quieter fan from Noctua ( Noctua NF-A4x20 PWM, Premium Quiet Fan, 4-Pin (40x20mm, Brown) ) to replace the stock fan. I also had to order some different screws (and nuts/washers) to mount the Noctua fan. Like all devices of the Mikrotik CRS series, this unit comes with both RouterOS and SwitchOS. (The CSS series' units only come with SwitchOS.) Mine shipped with SwitchOS 2.16, which had some problems with the SFP+ ports, so I requested a newer version from support, who within one day provided me with version 2.17RC2. That version worked without a problem. If the unit ships with SwitchOS 2.17 or later, that problem should be gone. While I would have liked to use SwitchOS (since it's a bit easier to navigate than RouterOS), the fan settings are minimal to nonexistent, so I switched to RouterOS, which allows for a setting of the default fan speed and a ramp-up temperature. As you can tell, there was quite a bit of trouble initially, but now it works quietly and flawlessly. However I still can't understand why Mikrotik just didn't spend 10$ more on a decent quiet fan and charge more for the unit. This would have made the product so much more appealing. So I'm deducting one star for that nuisance. So if you can do the fan swap yourself, then this is a 4-star unit. If you can't (or are not willing to) do that, then this might only be a 2 - 3 star unit and you shouldn't have it in your living or working area.

I was a bit worried after reading other reviews about purchasing this, but the specs are fantastic for my home lab as we migrate from an old Mikrotik RB2011iL-IN. The fan IS loud, and it's intentionally loud, and it also only runs audibly for ~30 seconds when it's first power-cycled (software reboot doesn't trigger it); the fan runs extremely fast to give a hard push to any dust which might be inside the router, it slowly ramps down in speed, and then it's done. -So long as you aren't over-restricting its environmental airflow or pushing it to its limit 24/7, you're never going to hear it until you have a power outage or otherwise power-cycle the device. I have it running in a rack in my bedroom, and it's essentially inaudible in normal operation. Old router was stuck on 6.X version of RouterOS, while this ships with 7.16 (or .14; I forget) and can be upgraded to latest version without issue. Note this substantially changes the GUI and also overhauls a lot on the backend, so in my case, I did have to manually redo a lot of my setup and it took a half-hour or so trying to understand the changes between RouterOS 6.X and 7.X. I use MikroTik exclusively for my most insular servers, everything I want very tight control over. It's a great brand from the baltics, very NATO-aligned, and the support team's great; the whole company sees their products as much more than electronic slop to shovel onto a boat. Note the default password's on a sticker on the "user manual" (which is, excepting the sticker, printed in such small font as to be a joke; but that's fine, you want the online documentation anyway).

De los equipos mikrotik que llevo comprado, este es lo cotrario a lo que me tiene acostumbrado la marca. Un switch chino tiene mejores acabados. No voy a entrar en las prestaciones que tiene, porque para mi no hay nada mejor por el precio. Pero es que se nota a la legua que quisieron ahorrar tanto que le pusieron lo mas malo que encontraron y de la peor manera. Extremadamente ruidoso su ventilador, y con unos disipadores ridiculos. Y su pintura y serigrafias se enborronan como tengas algo de sudor en las manos. Productos mucho más económicos de mikrotik, tienen mejor disipacion y acabados que esto.

Amazing switch. Works really well. Only annoying thing is the 18-57v input power. I would have preferred 12v or PoE but oh well.

Even as a Mikrotik advocate and fanboy I can honestly say that this is a good product. I'm using it as a Boundary router for the fibre connected Smarthome. It's not maxed out and we shift Terabytes of data around every week. Only complaint / comment is that there is a fan but it is noisy and sounds like it about to give up the ghost. But its important to get a Mikrotik with a fan especially if you use SFP+ ports. Dont be fooled the 10G ports run very hot. Mikrotik do a few passive 10G devices but I would not rate your chances. As usual RouterOS is great when it works and when it does not and you misconfigure something important like a firewall rule ... you did make a backup so you can reset and restore !! This product is a good way to get started with a 2.5G Router not just switch.

The management is very easy, there is a web interface and a ssh interface that looks a bit like Cisco IOS. It helps you select commands when you press TAB, for instance. You can modify configs for multiple ports at once using regex search terms. There is a safe mode you can enter with CTRL-X, which saves you from shutting yourself out of the router when you make a mistake. What's also nice is that the switch sends out MNDP (MikroTik Neighbor Discovery Protocol) packets on each port identifying that port to whatever is connected - similar to the Cisco Discovery Protocol This is high quality gear at a low price. I've been searching for a while, and I've seen nothing else at this price point that does 2x 10G SFP+, and 8x 2.5G, while also doing LACP/VLAN/QoS/etc. I've bought two, and I am probably going to hook both up to a 10G backbone switch, using the two SFP+s in LACP mode to get 20G aggregated. The case doesn't get hot, it doesn't even get warm. It comes with brackets to mount it in a 19" rack. Obviously that means a lot of wasted space since you can fit more than 2 of these side by side in a 19" frame, but handy nonetheless. EDIT: I contacted support and they pointed out that you can buy a special bracket to mount two of these side-by-side (RMK-2/10 rack mount kit, "rmk2_10"). The company is from Lithuania. You can get cheaper ones from China probably, but this gear is EU made, so warranty is assured and support is good.

Extrêmement satisfait de mon achat !