Waveshare Industrial USB TO 4CH TTL Converter, USB To UART, Multi-Protection & Systems Support Onboard Resettable Fuse and Protection Diode, Provides Over-Current/Over-Voltage Proof, and Improves Shock Resistance; Onboard Voltage Translator Circuit, With Surge Suppress and ESD Protection, Safe and Stable Communication
Features:
- Extending USB to 4CH TTL (UART) with hardware flow control allows concurrent and independent communication for each channel
- Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance
- Onboard voltage translator circuit, with surge suppress and ESD protection, safe and stable communication
- Onboard TTL serial port 3.3V and 5V voltage level switch, allows selecting TTL level
- Aluminum alloy enclosure with oxidation dull-polish surface, CNC process opening, solid and durable, well-crafted
- Quality USB-B connector, and IDC connector with fool-proof design.
Useful link:
For Software setup, please follow this tutorial.
Specification:
| Model Type: | Converter |
|---|---|
| Operating Voltage (V): | 5 |
| Working Current (mA) | 32mA |
| Baud Rate (bps) | 1200bps ~ 460800bps |
| TTL | Operating Voltage: 3.3V / 5V (configurable) |
| Operating Temperature (°C) | -40℃ ~ 85℃ |
| OS | Mac OS, Linux, Windows 11/10/8.1/8/7, Android |
Packages Include:
1 x Waveshare Industrial USB TO 4CH TTL Converter, USB To UART, Multi Protection & Systems Support
Technical Specifications
| Brand | WAVESHARE |
|---|---|
| Channels | 4-channel |
| Interface / Protocol | UART, USB, TTL |
| SKU | AI6668 |
| Weight | 0.25 kg |
| Availability | In Stock |
Applications & Use Cases
The Waveshare Industrial USB TO 4CH TTL Converter, USB To UART, Multi Protection & Systems Support is a versatile usb interface module used across a wide range of applications including serial communication, industrial automation, data logging, PLC interfacing, and IoT gateway.
Common use cases:
- Converting USB to RS485 for industrial equipment
- Building a data logger for factory sensors
- Debugging embedded systems via UART
This product is ideal for embedded system developers and industrial automation engineers.
Technical Tip: Industrial-grade modules with isolation protect against ground loops and voltage spikes in noisy environments.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine WAVESHARE product sourced from authorized channels



Bhavna Grewal (verified owner) –
Okay Waveshare Industrial USB TO 4CH TTL. Output is slightly off from specified but within usable range.
Sachin Agarwal (verified owner) –
Good quality Waveshare Industrial USB TO 4CH TTL. Ripple is low. Suitable for most electronics projects.
Paras Mehta (verified owner) –
Superb Waveshare Industrial USB TO 4CH TTL! Efficiency is high and it runs cool even under load.
Abhishek Rao (verified owner) –
Outstanding! This Waveshare Industrial USB TO 4CH TTL supplies clean power to my sensitive circuits. No noise at all.
Ishaan Sen (verified owner) –
Bought multiple units of this Waveshare Industrial USB TO 4CH TTL. All consistent quality. Zbotic is reliable.
Abhishek Srivastava (verified owner) –
Nice Waveshare Industrial USB TO 4CH TTL. Works as expected for my power needs. Good efficiency.
Bhavna Krishnan (verified owner) –
Average Waveshare Industrial USB TO 4CH TTL. Works but efficiency could be better. Adequate for basic projects.
Prashant Mittal (verified owner) –
Good Waveshare Industrial USB TO 4CH TTL. Output is stable. Gets slightly warm under full load but nothing concerning.
Sandeep Desai (verified owner) –
This Waveshare Industrial USB TO 4CH TTL is reliable and efficient. Running my IoT setup 24/7 with no issues.
Shruti Pillai (verified owner) –
This Waveshare Industrial USB TO 4CH TTL is reliable and efficient. Running my IoT setup 24/7 with no issues.
Swati Patil (verified owner) –
Perfect Waveshare Industrial USB TO 4CH TTL for my portable project. Battery life is better than expected.
Harsh Dhillon (verified owner) –
Good Waveshare Industrial USB TO 4CH TTL. Output is stable. Gets slightly warm under full load but nothing concerning.
Vishal Dubey (verified owner) –
Very satisfied with this Waveshare Industrial USB TO 4CH TTL. Using it in my solar project, charges perfectly.
Aditi Malhotra (verified owner) –
Nice Waveshare Industrial USB TO 4CH TTL. Works as expected for my power needs. Good efficiency.