There are a number of predrilled screw holes on the base of the 4 and 8 port metal cases. These can be used to mount the device directly or in conjunction with the MK-070 and MK-059.
The MK-070 will allow mounting on to a DIN rail. The MK-059 provides additional wall mounting options.
The diagram below gives the positions of all the available screw holes. An M3 screw should be used for mounting.