RS232 to TTL Serial Port Converter DB9 MAX3232 Connector Module
This RS232 to TTL Serial Interface Module features the MAX3232 transceiver integrated circuit (IC), enabling efficient serial communication between TTL and RS232 ports through essential electrical signal conversion.
Typically, the board includes a DB9 connector on one end and four header pins with jumper cables on the other. The jumper cables allow easy connections to a breadboard or microcontroller project, while the DB9 connects directly to a computer’s COM port.
The MAX3232CSE IC comes in a 16-pin narrow SO package, operating within a voltage range of 3.0 V to 5.5 V. It includes two receivers and two transmitters, with a maximum guaranteed data rate of 120 kbps. The circuitry requires four 0.1µF charge-pump support capacitors and is compatible with the well-known MAX3232 IC pins. This module connects to systems with UART, making it suitable for use with ATMEL and PIC microcontrollers.
Our MAX3232 RS232 Serial Port to TTL Converter Module features a DB9 connector and supports 5V TTL connections. It can be used to expand the serial port capabilities of microcontroller modules, as well as connect to devices such as DVD players, routers, and hard drives.
Simplify your serial communication needs with our RS232 to TTL Serial Interface Module, featuring the integrated MAX3232 transceiver IC for seamless project integration.
Features:
- Integration of MAX3232 transceiver IC for efficient signal conversion
- Sturdy DB9 connector for direct connection to computer COM ports
- Convenient jumper cables with header pins for easy integration into breadboards or microcontroller projects
- Supports a wide voltage range of 3.0V to 5.5V, making it compatible with various setups
- Maximum data rate of 120 kbps for swift communication
- Compact design for space-saving installation
- Ideal for a range of applications including radio modification, device flashing, GPS systems, and more
- Compatible with popular microcontroller platforms such as ATMEL, PIC, STC MCU, NXP MCU, Renesas MCU, STM32 MCU, and N-2EC MCU
Upgrade your serial communication setup with our reliable RS232 to TTL Serial Interface Module. Whether you’re a hobbyist or a professional, this module offers versatility and performance to meet your project requirements.
Specifications:
| Width (mm): | 32 |
|---|---|
| Height (mm): | 15 |
Package Includes:
- 1 x RS232 to TTL Serial Interface Module
Attachment’s:
Technical Specifications
| Model | RS232 |
|---|---|
| Interface / Protocol | RS232, TTL |
| Package Quantity | 3232 pcs |
| SKU | AI0014 |
| Weight | 0.01 kg |
| Availability | In Stock |
Applications & Use Cases
The RS232 to TTL Serial Port Converter DB9 MAX3232 Connector Module 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

Meera Saini (verified owner) –
Outstanding! This RS232 to TTL Serial Port Converter supplies clean power to my sensitive circuits. No noise at all.
Prashant Pillai (verified owner) –
This RS232 to TTL Serial Port Converter is reliable and efficient. Running my IoT setup 24/7 with no issues.
Nikhil Bajaj (verified owner) –
Superb RS232 to TTL Serial Port Converter! Efficiency is high and it runs cool even under load.
Pooja Tiwari (verified owner) –
Okay RS232 to TTL Serial Port Converter. Output is slightly off from specified but within usable range.
Vinay Singh (verified owner) –
This RS232 to TTL Serial Port Converter is reliable and efficient. Running my IoT setup 24/7 with no issues.
Pallavi Vohra (verified owner) –
Good RS232 to TTL Serial Port Converter. Output is stable. Gets slightly warm under full load but nothing concerning.
Hitesh Chatterjee –
Great quality RS232 to TTL Serial Port Converter. Powering my entire project board with this. Very reliable.
Vidya Dave (verified owner) –
Good RS232 to TTL Serial Port Converter. Output is stable. Gets slightly warm under full load but nothing concerning.
Rohan Shah (verified owner) –
Very satisfied with this RS232 to TTL Serial Port Converter. Using it in my solar project, charges perfectly.
Aryan Khanna (verified owner) –
Excellent RS232 to TTL Serial Port Converter! Output is stable and reliable. Perfect for my electronics project.
Pooja Mishra (verified owner) –
This RS232 to TTL Serial Port Converter performs flawlessly. Voltage regulation is precise and consistent.
Gauri Negi (verified owner) –
Excellent RS232 to TTL Serial Port Converter! Output is stable and reliable. Perfect for my electronics project.
Farhan Verma (verified owner) –
This RS232 to TTL Serial Port Converter is exactly what I needed. Output current capacity is as advertised.
Kabir Iyer (verified owner) –
Nice RS232 to TTL Serial Port Converter. Works as expected for my power needs. Good efficiency.
Shruti Dubey (verified owner) –
Decent RS232 to TTL Serial Port Converter. Voltage output is accurate. Compact form factor is a plus.
Sakshi Singh (verified owner) –
Bought multiple units of this RS232 to TTL Serial Port Converter. All consistent quality. Zbotic is reliable.
Ishaan Patel (verified owner) –
This RS232 to TTL Serial Port Converter performs flawlessly. Voltage regulation is precise and consistent.
Neeraj Luthra (verified owner) –
Decent RS232 to TTL Serial Port Converter. Voltage output is accurate. Compact form factor is a plus.
Aslam (verified owner) –
Manish Kamath (verified owner) –
Great quality RS232 to TTL Serial Port Converter. Powering my entire project board with this. Very reliable.
Pallavi Mukherjee –
Decent RS232 to TTL Serial Port Converter. Voltage output is accurate. Compact form factor is a plus.
Sahil Chopra –
Very satisfied with this RS232 to TTL Serial Port Converter. Using it in my solar project, charges perfectly.