This is the wrong modelname "CCS328-24P-4S+" that the webinterface login greeter shows for the CRS328-24P-4S+RM (notice the mssing C>R and +RM)when running in SwOS 2.7 instead of routerOS.
According the Mikrotik support, its not a bug nor unplanned/unreleased model but intended naming scheme.
@Janis.B May 23, 2018 8:18 AM
> The "CSS" model naming in SwOS authentication window is intentional and does not
> differ between "CSS" and "CRS" models. Currently, CSS328-24P-4S+RM switch with
> only SwOS is not planned.