We have come across an issue with key encoders that require a forced setting of 10/Half to operate. The MS350 product does not have an option of half duplex. Setting the port to 10(auto) will not work either since it will not negotiate half duplex.
yes that is what the spec datasheet says. so you bought the wrong product. maybe you can buy a small (8 port?) switch and connect that for the half duplex clients
Is there a dongle you can buy that that will reduce the speed before it hits the switch?
I'm going to guess that it's a chipset limitation, it seems like a lot of effort to just disable that in software otherwise. So unfortunately I doubt it can be made available.
The MS250s support half duplex, I have a couple of large room type audio devices that run 10/half.
The switching capacity is the same between the MS250 and MS350: 176Gbps. However, the MS350 has double the stacking bandwidth.
https://meraki.cisco.com/products/switches/ms250-48#compare