Suggestions for managed desktop routers

Hi,

We are an IOT company that requires developers to have their own subnets for testing in. We are looking to get small managed desktop wifi routers that we can remotely manage to ensure updates are applied, wireless is properly secured, etc... We are a meraki shop so the meraki Z3 seemed like a perfect fit but 2.4G can't be disabled and its generally unusable in our environment. I thought that was basic functionality everyone had these days... Can anybody recommend something similar that they've had a good experience with?

Thanks