1. Onboard for Pico interface, suitable for pico series motherboards 2. The onboard network serial port transparent transmission chip supports two serial ports and transparent transmission 3. On-board interface pins, jumper caps can be set to facilitate setting enable or custom connection pins 4. Comes with Ethernet media transport layer () and layer (PHY) 5. Support 10/100M, full-duplex/half-duplex adaptive Ethernet interface, compatible with 802.3 protocol 6. Support /MDIX line automatic conversion 7. Support DHCP to automatically obtain IP address, support DNS domain name access 8. You can set the chip working mode, port, IP and other network parameters through the computer software and serial port commands 9. Working mode supports 4 modes including CLIENT, SERVER and UDP CLIENT, UDP SERVER 10. The serial port supports full-duplex and half-duplex serial communication, and supports automatic switching of RS485 transceivers (requires an external RS485 interface chip) 11. Support and virtual serial port software 12. Support KEEPALIVE mechanism Working voltage: 3.3V-5V Working current: 140mA Working mode: /UDP Serial port rate: 300bps~921.6Kbps Serial port TTL level: compatible with 3.3V and 5V Product size: 74.54 x 21(mm) Working temperature: -40C~85C Storage environment: -55C~125C color:Blue Material:PCB+metal Package Contents: 1 x PICO network expansion board Only the above package content, other products are not included. Note: Light reflection 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.