The SISPM1040-182D-LRT is a managed PoE switch suitable for connecting and powering devices in challenging environments. The two gigabit speed combo ports provide the ultimate flexibility by allowing copper or fiber SFP uplink ports. The two uplink ports can also be used in a redundant ring for maximum network reliability. The switch has a PoE power budget of 120 watts, provides up to 15.4 watts per port on all ports simultaneously, has redundant input power connections, and a fault alarm relay to ensure safe reliable operation in temperatures between -40 degreeC and +65 degreeCTransition Networks' hardened switches are certified to operate reliably in harsh environments such as those found on factory floors, outdoor enclosures or other challenging environments. Transition Networks Managed Hardened Fast Ethernet Switch is one of many Managed Switches available through Office Depot. Made by Transition Networks.