Chapter 1 – Product Specifications 2IoT Gateway System SRG-4858P1.1 SpecificationsGeneralCPU ARM Cortex-A8 800 MHz RISC ProcessorMemory DDR3L 1GBStorage eMMC 8GBOS Support Debian 10 (Buster)RTC Supported YesSecurity −InterfaceEthernet Ports 2 x Auto-sensing 10/100/1000 Mbps ports (RJ45connector)USB Ports 1 x USB2.0 (Type A Connector)Serial Ports 10 x RS485 (Terminal Block)Expansion Ports 1 x Mini PCIe SlotSIM Slot 1 x Micro SIMSD Slot 1 x microSDDebug Port 1 x Mini USBFunction Port −Radio Frequency InterfaceWi-Fi −Bluetooth −