TTL level: 3V3. With reinforced strain relief cable design for repeated bending and pulling.
Waveshare Industrial USB TO TTL (C) 6pin Serial Cable, FT232RNL Chip, Multi Protection Circuits, for Win7/8/10/11/Mac/Linux, Hardware Flow Control, for Serial Port Debugging of Industrial Equipments
Waveshare Industrial USB TO TTL (D) Serial Cable, FT232RNL Chip, Multi Protection Circuits, for Win7/8/10/11/Mac/Linux, With 4pin Header+SH1.0 3PIN Connector, For Raspberry Pi 5 Serial Port Debugging
Suamdoen USB to TTL UART 3V3 Serial Cable with FT232RL Chip 3.3V TTL to 3.5mm Audio Jack Output Cable Works for PLX SM-AFR, TTL-232R-3V3-AJ
Durability USB to TTL Cable USB to TTL Adapters Cable FTDI Chip Stable to Use
MEIRIYFA USB to TTL Serial Adapter Cable 5V to 3.3V UART Converter Wire, USB to TTL TX RX VCC GND Pinout Signal 4 Pin Female Socket with FTDI FT232RL Chip for Windows 10/8/ 7/ XP/Vista Android (1M)
USB To TTL Serial Port Download Cable, PL2303TA USB To TTL RS232 Module Converter, Serial Cable Adapter, for Win XP/VISTA/ 7/8/8.1(1pc)