I’m looking for a small version of the Model CRS328-24P-48+RM for testing configs for a customer. I don’t care about speed/sfp or dual boot. I only need switch OS. Would the CRS106-1C-5S work? I couldnt find a comparison guide.
Perhaps this?
Depends on how similar the testing switch should be to the “real” device:
CRS328-24P-4S+RM offers 24 PoE-out gigabit RJ45 ports and 4 SFP+ (10Gbps) cages (and RM means it comes in rack-mountable case). It can run either ROS or SwOS
CRS106-1C-5S offers 5 SFP (1Gbps) cages and one combo (RJ45/SFP) 1Gbps port. It can only run ROS.
CSS610-8G-2S+IN (suggested by @gabacho) offers 8 gigabit RJ45 ports (no PoE out) and 2 SFP+ (10Gbps) cages. It can only run SwOS.
CSS106-5G-1S (a.k.a. RB260GS) is another possibility - offering is similar to one of CRS106, but runs SwOS.
BTW, the middle letter in product name (CRS vs CSS) denotes which OS device runs: R means ROS and S means SwOS. Some ‘R’ devices (e.g. CRS324) can run SwOS but not all, none of ‘S’ devices can run ROS.
MT has quite decent product pages with basic features listed. Makes comparisons quite easy.
https://mikrotik.com/product/crs328_24p_4s_rm
https://mikrotik.com/product/CRS106-1C-5S
https://mikrotik.com/product/css610_8g_2s_in
https://mikrotik.com/product/RB260GS
Then there are differences in what (advanced) features are available … but to see which are those, one would have to inspect actual SwOS running on each device. If it was runninf ROS, then CRS3xx offer many advanced features compared to CRS1xx.