The patented DEXTER cluster case we use to mount every component into has a built-in 8-port Gigabit Local Area Network (LAN) switch.
This network switch provides the network connection among the four workstations to form the cluster. A DEXTER personal cluster uses only 4 ports out of 8 of the LAN switch so you have the possibility to connect other computers like your laptop or an other DEXTER personal cluster to the first cluster.
The power supply of the 8-port LAN switch is the same as the power supply of the master node or its own power supply can be used as an alternative.