USB to TTL module USB to serial UART module Voltage isolation-signal isolation 5V/3.3V Dual Level FT232RNL-REEL CH340C CP2102

If you need 10pcs or more quantity,please check following link:

10pcs USB to TTL USB to serial UART module Voltage isolation-signal isolation 5V/3.3V Dual Level CH340/CP2102/FT232RNL-REEL chip | AliExpress

Conversion chip FT232RNL-REEL + signal isolation SCM3725

MORSUN Power Isolation 3.3V/5.0V Dual Level

Conversion chip

CH340+ signal isolation SCM3725

MORNSUN Power Isolation 3.3V/5V Dual Level

Conversion chip CP2102 + signal isolation SCM3725

MORNSUN Power Isolation 3.3V/5V Dual Level