There are several differences between the ESP32-C5 DEMO board we have launched and the official DEMO board from ESPRESSIF. 1.We use TI chip's LDO voltage reduction method to reduce the voltage from 5V to 3.3V, which can provide 1A current. The official method used is DCDC. 2. The official serial chip used is CH9102X, with a maximum speed of 4Mbps according to the official manual. We are using CH343P, with a maximum speed of 6Mbps according to the official manual and a smaller size. 3. The official board size is 53.6mm * 25.4mm, while our board size is 51.5mm * 30.5mm, which is slightly larger than the official board overall. 4. The official board uses a jumper cap for the ESP32-C5's 3.3V power supply to facilitate current testing. We use a fuse to prevent damage to the module in the event of a short circuit. The rest of the peripheral devices and IO pins are the same, and users can directly replace them for testing.