CH32V307V-EVT-R1 is a development board based on WCH CH32V307 RISC-V microcontroller with an Ethernet port, an USB Type-C port, and eight UART interfaces accessible through headers. CH32V307V-EVT-R1 board specifications: MCU - WCH CH32V307VCT6 32-bit RISC-V microcontroller 144 MHz as described above Networking - 10 Mbps Ethernet USB - 1x USB 2.0 Type-C port (480 Mbps), 1x USB 2.0 Type-C port (: 12 Mbps) Expansion MCU I or O expansion headers with 8x UART interfaces, and more for headers Debugging SDI and UART header to download and debug CH32V307 firmware USB-C port to connect to WCH-Link (selectable by jumper) - LEDs, Reset button, user button, Power Supply Switch to select USB or external 5V power supply 5V to 3.3V voltage regulator Colour:black Material:PC Due to different product batches, the appearance , which does not affect the use Package Contents: 1 x CH32V307 Evaluation 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.