UART(TTL) to USB2.0,RS485,RJ45/Ethernet(IEEE802.3) adapter CH340/MAX1348/CH9121

CH9121 compatible with IEEE 802.3. USB2.0 to UART(TTL). 2.54mm Pin-Holes and 4xPins UART TTL (Vcc, GND, RxD, TxD). UART (Pins), RJ-45 with LED. Support TTL 5v or 3.3v. Supporting 1 Start bit; 1~2 Stop bit; 5~8 Data bit; parity.

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