CH341A programmer USB to UART converter IIC SPI I2C - parallel port converter Supports USB to printer parallel port and EPP or EME parallel port. Serial Port Support: Supports USB to UART, I2C, SPI interface. Output voltage: The output voltage and signal level can be selected from 3.3v or 5v. Working status indicator on board UART and SPI/I2C. Dimensions: 4.4x2.6cm / 1.73x1.02in https://elecena.pl/product/22632482/ch341a-usb-to-uart-iic-spi-ttl-isp-epp-parallel-converter 2023-02-24 https://elecena.pl/product/22632482/ch341a-usb-to-uart-iic-spi-ttl-isp-epp-parallel-converter 2024-12-17 https://elecena.pl/product/22632482/ch341a-usb-to-uart-iic-spi-ttl-isp-epp-parallel-converter 2025-10-26 https://elecena.pl/product/22632482/ch341a-usb-to-uart-iic-spi-ttl-isp-epp-parallel-converter 2025-10-28