- Description
- Package Content
Details
Industrial USB TO TTL Converter, Original CH343G Onboard, Multi Protection Circuits, Multi Systems Support
USB TO TTL CONVERTER
Original CH343G | Stable Transmission | Multi Devices | Multi Systems
Industrial Grade Quality

Features at a glance
- Onboard resettable fuse and TVS diode, providing protections including over-current, over-voltage, backward-proof, and ESD protection, improving shock proof performance, safe and stable communications
- Onboard IO protection circuit for surge suppress
- Onboard TTL serial port 3.3V and 5V voltage level switch, allows selecting TTL level
- 3x LED indicators for easily checking power connection and signal TX/RX statuses
- Quality plastic case with dull-polish surface, well-crafted
- IDC connector with fool-proof design
Specifications
Product category | Industrial USB TO TTL converter | Host port | USB |
---|---|---|---|
Data rate | 50bps ~ 6Mbps | Device Port | UART |
USB port | Connector: USB-A Protection: resettable fuse, ESD protection |
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UART port | Connector: 8PIN fool-proof header Protection: IO protection diode |
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Indicator | PWR: power indicator, turns red when USB voltage is detected TXD: TX indicator, turns red while the USB port is sending data RXD: RX indicator, turns red while the device port is receiving data |
Multiple protection, safe and stable
Onboard resettable fuse and TVS diode, providing protections including over-current, over-voltage, backward-proof, and ESD protection, improving shock proof performance, safe and stable communications

Multiple systems support
Compatible with popular systems like Win7/8/8.1/10/11, Mac, Linux, Android...

Three LED Indicators
Easily checking the operating status, convenient for programming / debugging

USB signal & Pinouts Definition

5V | 5V output |
---|---|
VCC | 3.3V or 5V output, configured by switch |
GND | Ground |
TXD | Connecting to MCU.RX |
RXD | Connecting to MCU.TX |
RTS | Connecting to MCU.CTS |
CTS | Connecting to MCU.RTS |
Outline dimensions

Selection guide
Partnumber | USB TO TTL | USB TO TTL (B) |
---|---|---|
Chip | FT232 | CH343G |
Data rate | 300bps ~ 3Mbps | 50bps ~ 6Mbps |
Hardware flow | supported | |
OS support | Win7/8/8.1/10/11, Mac, Linux, Android, WinCE | Win7/8/8.1/10/11, Mac, Linux, Android |
USB port | Connector: USB-A Protection: resettable fuse, ESD protection |
|
UART port | Connector: 8PIN fool-proof header Protection: IO protection diode |
|
Indicators | PWR: power indicator, turns red when USB voltage is detected TXD: TX indicator, turns red while the USB port is sending data RXD: RX indicator, turns red while the device port is receiving data |
Weight: 0.021 kg