CH340G SOIC16 USB to Serial TTL UART IC [4511] : Sunrom Electronics
USB to UART serial bridges
Amazon.com: USB to TTL Serial 3.3V UART Converter Cable with FTDI Chip Terminated by 6 Way Header, Works with Galileo Gen2 Boards/BeagleBone Black/Minnowboard Max and More : Electronics
CP2102 USB 2.0 to UART TTL Converter Module – QuartzComponents
USB to Serial IC - CH340E (10 Pack) - COM-16278 - SparkFun Electronics
CP2102 (5-Pin) USB 2.0 To TTL UART Serial Converter