USB to TTL serial cables allow you to connect to your Raspberry Pi or microcontroller serial console port. The main body has a USB serial conversion chip, and the other end has four wires to hook up to your target board: * Red = power * Black - GND * White = RX (into USB port) * Green = TX (out of USB port) The power pin provides 5V 500mA direct from the USB port and the RX/TX pins are 3.3V for interfacing with most common 3.3V logic level chipsets. The split jumper wires make it easy to hook up to a Raspberry Pi's debug console. Just connect the wires to the correct pins to set up a link to your board. You can even use these cables on some WiFi routers to install alternative operating systems. This cable is not for Arduino re-programming - it does not have the DTR/RTS wire necessary for initiating the bootloader reboot sequence. Use FTDI instead. Resources If you are running Linux, drivers are already included in the kernel, no need to install anything! * Windows tutorial page with links to drivers for both PL2303 and CP2102 * Mac OS Xtutorial page with links to drivers for both PL2303 and CP2012 * PL2303HX.D datasheet * PL2303TA datasheet * CP210X Serial Communication Guide * SiLabs CP210X product pages Revision History * As of December 2016 we will be shipping cables with SiLabs CP2012 chipset instead of Prolific https://elecena.pl/product/22713940/usb-to-ttl-serial-cable-for-raspberry-pi 2023-03-06 https://elecena.pl/product/22713940/usb-to-ttl-serial-cable-for-raspberry-pi 2023-12-27 https://elecena.pl/product/22713940/usb-to-ttl-serial-cable-for-raspberry-pi 2024-09-19 https://elecena.pl/product/22713940/usb-to-ttl-serial-cable-for-raspberry-pi 2024-11-29 https://elecena.pl/product/22713940/usb-to-ttl-serial-cable-for-raspberry-pi 2024-11-30 https://elecena.pl/product/22713940/usb-to-ttl-serial-cable-for-raspberry-pi 2025-11-28 https://elecena.pl/product/22713940/usb-to-ttl-serial-cable-for-raspberry-pi 2025-11-29