This Cisco PWR-IE50W-AC-IEC AC Expansion Power Module is a fully managed serial switch that is rack mountable. With an interface of Ethernet (RJ-45), this module is perfect for enterprise networking, servers, and computers/tablets & networking. It has a form factor of 5.8" and comes in a unit quantity of 3. The brand of this module is Cisco and the model number is Cisco PWR-IE50W-AC-IEC. It is ideal for those looking for a reliable and high-performance power module. This module is perfect for use in switches and hubs and is a great addition to any network.