Amazon.co.jp: DTECH USB TTL Serial Converter Cable 3.3V 1m PL2303 Chipset 4pin 2.54mm Pitch Female Connector USB TTL Serial Converter Cable for Windows 10 8 7 XP Vista Mac : Computers
USB 2.0 to TTL UART 5 PIN Serial Converter Module CP2102 STC PRGMR
USB to TTL Serial Cable - Debug / Console Cable for Raspberry Pi : ID 954 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits