RUGGEDCOM RST2228P is a field modular, fully managed Layer 2 Ethernet switch with 4 x 1/10 GBit/s and 24 x 100/1000 MBit/s non-blocking ethernet ports. Support for up to six 4-port media modules with POE, RJ45, SFP or LC interfaces; Support for Power-over-Ethernet (IEEE 802.3at); -40...+85°C operating temperature (fanless); 128-bit encyption. . . 19" Rack, Panel Mount Kit HI VDC/VAC, Screw terminal No Power Supply none LED Panel mounted on the front RUGGEDCOM RMM2931-4 (Blank Module) RUGGEDCOM RMM2931-4 (Blank Module) RUGGEDCOM RMM2931-4 (Blank Module) RUGGEDCOM RMM2931-4 (Blank Module) RUGGEDCOM RMM2931-4 (Blank Module) RUGGEDCOM RMM2931-4 (Blank Module)