The Voyager Embedded Switch m-Series (VoyagerESm) contains the same Layer 3 switch designed by Klas but has fewer ports for reduced SWaP operations. It contains 4 Fast Ethernet ports, all of which are PoE enabled, a Gigabit Ethernet switch port, 2 USB 2.0 ports, console management port and a removable configuration storage for increased security, persona portability and simplified sparing.

The VoyagerESm supports critical Cisco VoIP switching features such as VLAN trunking and Cisco Discovery Protocol (CDP).

Ruggedization is a key feature of the VoyagerESm with a lightweight, fanless design and an extruded aluminum enclosure with dust caps for all ports.