Hardware Specifications ER-4 Dimensions 229 x 136.5 x 31.1 mm (9.02 x 5.37 x 1.22 in) Weight 795 g (1.75 lb) Max. Power Consumption 13W Power Internal AC Power Adapter Power Input 110 - 240VAC Button Reset LEDs Data Ports SFP Data Port Speed/Link/Activity Link/Activity Networking Interfaces Management Networking (1) RJ45 Serial Port (4) Ethernet Ports (Default eth0) (3) 10/100/1000 RJ45 Ports (1) 1 Gbps SFP Port Processor 4-Core 1 GHz, MIPS64 System Memory 1 GB DDR3 RAM On-Board Flash Storage 4 GB eMMC, 8 MB SPI NOR Rack-Mountable Ye s Operating Temperature -10 to 50° C (14 to 122° F) Operating Humidity 10 - 90% Noncondensing Certifications CE, FCC, IC