1. High speed SPI interface 80MHz; Supports up to 8 Socket
  2. USR-ES1 is the Ethernet module of a SPI interface, interface is TTL level of 3.3V, power supply voltage of +3.3V, please ensure that the current is not less than 200mA, voltage is continuous and stable +3.3V.
  3. Power supply mode:3.3V external power supply, current should be more than 200mA;
  4. High speed SPI interface 80MHz
  5. Hardware-TCPIP-protocol stack user built in, almost without understanding the complex network