MikroTik CRS309-1G-8S+in

I'm redoing my homelab and saw this little gem. For the price, it's not bad. 8 SFP+ port, all 10G. Perfect for my servers and my computer. It also performs much better than some enterprise equipment. For the first time, I see my servers reaching 5GB, peak, transfer rate. It probably could do better in SwOS. Very low power. This is replacing my existing brocade switch and compliments my CSS326 switch. I did notice a 20% decrease on my UPS load. It does come with rack ears which is nice, but they are a bit flimsy. Now it's "dual boot." Currently running RouterOS. It's great piece of OS. Lots of options. But if you want a simple, easy to use GUI, switch it over to SwOS. Please update the OS once you do. I think there is a fix for DHCP. I switched it over to DHCP, pre update, and rebooted the switch. It didn't pick up an IP address. Switch still function and passing traffic, but I couldn't log into the switch. I had to order console cable and reset the config. It's a powerful piece of equipment and I see it fitting nicely in my environment. Plus, it's the best bang for bucks. You get a prosumer device at a consumer value.

I was adding 10g to my home network, yes I like playing with tech. I needed both fiber and copper. This switch gives the flexibility to have your cake and eat it. Just plug in the SFP+ interfaces you need. I needed three fiber and a couple of copper 10g connections. I get amazing speed with this switch. I use 10g on the computer and 10g (fiber) on my NAS and I get blazing speed. SFP interface are inexpensive and you don't have to use Mirkotik SFP interfaces. I did change the unit from RouterOS to SwitchOS, this is just an option in the web interface and makes the unit easier to use as a switch. UPDATE 01-13-2026 The hardware quality is still amazing with these switches, HOWEVER, be warned that the RouterOS has had a security update. New units ship with a new version of RouterOS that has Severe security. Simple changes, such as changing the switch from running RouterOS to SwitchOS now requires juggling three balls, while doing a tap dance, and singing the Catalina Magdalena Lupensteiner Wallabeiner song. But it's not quite that easy. You have to open a terminal window and do a command line mode change and power cycle the unit (or use the reset Switch, a soft restart will NOT work) within a short time limit, then make the change in the interface and apply, hoping you get it right. Any documentation shipped with the router about this? NO. Any warning in the Interface? NO, just a cryptic error message that the unit can't do the change. I had to look it up on the internet. So when you are first setting up the unit you have to be Next to it, You can't install it then set it up. Fun Times... I understand the need for security, but making a change like this and not including a small slip of paper or a sticker that says "WARNING the software on this unit now had Security changes and you'll have to enable the ability to make changes" would be nice. ALSO being plugged into the Management port on the Switch doesn't make a difference. So why is it called a Management port then? You can't manage the firmware any differently than any other port. Still love the unit though. I have purchased 3 of the 8 port and 3 of the 5 port units and I will continue to purchase more as needed.

Great switch for home 10Ggig core upgrade. DAC cables are the cheapest solution. Works with Cisco 10G SR SFP+ modules. If you can build 10G firewall it can be done on small PC with x710 NIC card (modules are vendor hardcoded to Intel most likely, DAC works) running VyOS router/firewall linux. Use AI to get help.

This switch seems to work with Unifi/pfSense, but configuration is not for the "light of heart". I worked more or less 3 full days to get this working (beginning the process of a return after day 2, canceling at day 3). Configuration is nowhere as easy as the Unifi equipment (but the Unifi equipment isn't always available!). Decent quality of switch and once you understand the different terminology used by MikroTik, configuring the switch as a "core" (i.e. connected in between a pfSense router and a Unifi 48 POE switch) will work.

Very good for what it does. Line rate switching and full rich feature set. Warning, if you plan to use Copper SFP (RJ45), be sure to get the Low Power (.8 watt) versions! The SFP can get very hot as there are no fans in the switch. The Fiber SFP run much cooler so they won't be a problem. DAC cables also run very cool. I was able to PoE power this switch over the 1G management copper port which saved a power outlet in the rack.

So far all is good. I have to fiddle with the unit to get it to respond the first time setting it up. I set this up thru my MAC Studio (10Gb) connection. What was a bit confusing is that everything I read and watched on YouTube about this unit is that when logging on the first time, the password is left blank (no password needed). Not true; right on the unit is a label with the the password and on the quick guide is also the password. Once you use this and connect, then change your password. After that easy setup. The unit is noiseless - except it does make a squealing sound when powered up. My MAC and Synology NAS are humming away at close to 10Gb. I am using SFP+ RJ45 modules but will probably change some to fiber. Will rack mount it tomorrow.

I bought this to replace the CRS310 because I have two separate fiber out, and this unit allows for a fiber trunk to my Netgate 6100. Overall, this unit is a great device, is durable and provides greater heat dissipation with the fanless heat-sink than the previous CRS310. For anyone who is unaware of how VLANs work, this is not a "plug and play" device. I would definitely recommend this unit if you're on the fence.

The order arrived quick and I received everything as expected. I am a big Fan of MikroTik. As an Network Engineer I work with a lot of brands HP, Cisco, Fortinet and the list goes on I thought for my own network I would try MikroTik and I was impressed. What you get for the price is unbeatable and their products are solid with a robust set a features. The switch runs quiet and is powered by POE and that doesn't diminish its performance. This switch is connecting a 3 PVE cluster and a bare bone TrueNAS server and I got a full 10 gig network through my house and lab. I will be adding a few more of their switches in the near future. I would stay with RouterOS because while their switchOS has a clean layout and is very simple not offering all of the features the other OS it doesn't offer https at least that I am aware as I write this so creds to login is sent in the clear as soon as they add that I would be game if I didn't need all the other features offered in RouterOS.

Come da oggetto, ho trovato l'apparecchio prestazionale e di buona fattura. Non ho a disposizione misurazioni effettive delle velocità di trasferimento dati, ma è silenzioso (il che non è poco) ed, al momento, affidabile

This is an older model in the mikrotik range. Yet it still offers spf+ in the mikrotik environment the fraction of the price. Mikrotik is not for the non experts but it offers so much options. I'm using it as a backend switch between a couple of test servers with multiple vlans etc.. It can be configured in the less compless switch os.

Australian power supply NOT provided

Una refrigeración excelente y mantiene las velocidades altas de manera sostenida. Se nota que es mikrotik

Just took few minutes to start using the switch. First switched to SwitchOS, then changed management IP to match my needs and that's all. Used Twinax DAC cables of different brands - All worked fine. On the server, had used ASUS XG-C100F.