Download File Ch341a_v1.43_22012022.7z May 2026

The CH341A is a low-cost USB interface chip that supports various communication protocols, including , USB to Printer Port , and USB to I2C/SPI . It is most frequently used as a programmer for 24-series EEPROMs and 25-series SPI Flash memory. 2. Installation & Setup

: Run the driver installer (often labeled as CH341PAR.EXE or similar) to ensure your computer recognizes the programmer when plugged into a USB port. Download File CH341A_v1.43_22012022.7z

: Click Detect in the main window to identify the connected EFI or Flash chip. The CH341A is a low-cost USB interface chip

: Always read the current chip contents and save them as a backup before writing any new data. USB to Printer Port