Main features of ETH 01 gateway:Using dual-core Xtensa 832-bit LX6 microcontroller. Integrated SPI flash memory 32 Mbit/SRAM 520 KBSupport TCP server, TCP client, UDP server, UDP client working modeSupports four data ports of serial port, wifl, Ethernet and Bluetooth to be combined in pairs, and data is transparently transmittedSupport to connect to the network via wired network or wifi to upgrade the firmwareSupport wifi to connect to the Internet or LAN through the router, establish tcp/udp connection, and access the users designated service Device.Support wired network accessSupport user secondary developmentIndustrial grade working temperature range: -40~+85Serial port baud rate: 80-5000000Network protocol: IPv 4, tcp/udpSoftware encryption: AES/RSA/ECC/SHAcolour: blackMaterial: plasticSize: about 55x26mmPackage Contents:1 x gateway moduleOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.