B2B supply • 161 suppliers

I/O Modules Manufacturers & Wholesale Suppliers

I/O Modules are essential components in industrial automation, facilitating communication between devices and systems. Typical buyers include manufacturers, system integrators, and engineers looking to enhance their IoT applications. On Broost, you can source a variety of I/O Modules from top locations like Shenzhen, Pune, Ahmedabad, Bangalore, and Taichung, ensuring access to a diverse range of products for your automation needs.

On Broost · updated 3 Nov 2026

  • 161 suppliers of i/o modules with 271 listings. Listed from the suppliers' own public websites.
  • Most suppliers are in Shenzhen (25), Ahmedabad (9), Dongguan (8).
  • Supplier base: China (85), India (24), United States (14).
  • Listings commonly specify Model, Digital inputs, Digital outputs, Communication, Mounting.

Supplier of i/o modules? Turn complex RFQs into accurate quotes in minutes with Broost's AI quoting tool.

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Customized RS232 Interface Kit For Scout Balances

PCM Cable Co., Ltd.

🇨🇳 China

Price

Quote on request

FANUC A06B-6130-H002 Servo Amplifier Module

Mars CNC Components

🇮🇳 Delhi, India

Price

₹25,000 (≈ US$263.36 indicative, 4 Nov)

MOQ

1

Siemens PLC Modules – CPU, I/O, Communication & Interface

InRobots

🇨🇳 Shenzhen, China

Price

Quote on request

Siemens 6ES7 132-4BD32-0AA0 Digital Input PLC Module

SimplyBuy Global

🇬🇧 London, United Kingdom

Price

Quote on request

Allen-Bradley 1769-IF4 CompactLogix Analog Input Module

MOORE Automation Limited

🇨🇳 Xiamen, China

Price

Quote on request

CT-3713 3-Channel RTD-PT100 Temperature Acquisition PLC Module

ODOT Automation

🇨🇳 China

Price

Quote on request

100% Original PLC Analog Input Module CS1W-AD081-V1 for Omron

Sichuan Focus Science and Technology Co., Ltd.

🇨🇳 China

Price

US$200.00

MOQ

1

5-Port Industrial Ethernet Switch – Wholesale Discount

ODOT Automation

🇨🇳 China

Price

Quote on request

Industrial RS232 to RS485/RS422 Converter

PCM Cable Co., Ltd.

🇨🇳 Shenzhen, China

Price

Quote on request

Wholesale OEM Modbus RTU Interface Converter

ODOT Automation

🇨🇳 China

Price

Quote on request

GL20 Modular IO Modules (for Inovance PLCs)

SimplyBuy Global

🇬🇧 London, United Kingdom

Price

Quote on request

Voltage to Modbus RS485 Converter

ODOT Automation

🇨🇳 China

Price

Quote on request

ODOT CN‑8031 Modbus TCP Network Adapter (Ethernet I/O Network Interface Module)

ODOT Automation

🇨🇳 China

Price

Quote on request

Emerson PACSystems SafetyNet Network Interface Module

Instrumart

South Burlington

Price

Quote on request

Dual Channel RTD Converter

ODOT Automation

🇨🇳 China

Price

Quote on request

CT-2228 EtherCAT I/O Card – 8 Channel Digital Output 24VDC Source Type

ODOT Automation System Co., Ltd.

🇨🇳 Chongqing, China

Price

Quote on request

Wholesale CE Certification IO Over Ethernet Module

ODOT Automation

🇨🇳 China

Price

Quote on request

CE-Certified Modbus RTU Interface

ODOT Automation

🇨🇳 China

Price

Quote on request

Wholesale CE Certification Ethercat Fieldbus Interface Manufacturer

ODOT Automation

🇨🇳 China

Price

Quote on request

OEM Wholesale PPI Interface

ODOT Automation

🇨🇳 China

Price

Quote on request

USXGMII Interface Module

Hi-Optel Technology Co., Ltd.

🇨🇳 China

Price

Quote on request

EtherCAT Fieldbus Interface Module (CE Certified)

Chongqing ODOT Automation Technology Co., Ltd.

🇨🇳 Chongqing, China

Price

Quote on request

Bus Interface / Electronic Interface Modules

Eshine Technology Co., Ltd.

🇨🇳 Shenzhen, China

Price

Quote on request

Bus Interface / Electronic Interface Solutions

Eshine Tech Co., Ltd.

🇨🇳 Shenzhen, China

Price

Quote on request

OEM Wholesale PPI Interface Modules

ODOT Automation

🇨🇳 Chengdu, China

Price

Quote on request

OEM Wholesale PPI Interface

ODOT Automation Co., Ltd.

Chongqing

Price

Quote on request

Robot Joint Module

Shenzhen Homwing Technology Co., Ltd.

🇨🇳 China

Price

Quote on request

Wireless Data Collector GPRS IoT Quad-Band Transmission Module

Jiangsu Sfere Electric Co., Ltd.

🇨🇳 Jiangsu, China

Price

US$50.00

MOQ

2

LoRa Module for Long-Range IoT Communication

DREAMLNK

🇨🇳 Shenzhen, China

Price

US$8.00

MOQ

1

IoT WiFi Module with Free Technical Support

RF-star

🇨🇳 Shenzhen, China

Price

US$15.00

MOQ

1

Ethernet 8 Digital Inputs Remote Control Module for Industrial IoT

Shenzhen Beilai Technology Co., Ltd.

🇨🇳 Guangdong, China

Price

US$100.99

MOQ

1

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What to specify when sourcing i/o modules

  • Type of module (e.g., Ethernet, WiFi, LoRa)
  • Input/output specifications
  • Communication protocols supported
  • Power requirements
  • Environmental ratings (e.g., IP rating)
  • Minimum order quantity (MOQ)
  • Packaging requirements

Frequently asked questions

What factors influence the pricing of I/O Modules?

Pricing for I/O Modules can be influenced by factors such as the type of technology used, the complexity of the module, and the volume of the order. Customization and certifications may also affect costs.

What is the typical minimum order quantity (MOQ) for I/O Modules?

Minimum order quantities for I/O Modules can vary significantly between suppliers. It's advisable to check individual listings on Broost to find the MOQ that best suits your purchasing needs.

How do manufacturers ensure the quality of I/O Modules?

Manufacturers typically implement quality checks through rigorous testing, adherence to industry standards, and certifications. Buyers can request details on quality assurance processes when submitting RFQs.

What are the lead times for sourcing I/O Modules from different locations?

Lead times for I/O Modules can vary based on the supplier's location, production capacity, and shipping methods. It's recommended to inquire about specific lead times when requesting quotes.

Can I source I/O Modules with specific certifications?

Yes, many suppliers offer I/O Modules with various certifications. When submitting an RFQ, specify the required certifications to ensure compliance with industry standards.

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Sourcing for United States

Showing suppliers who can serve your location. Prices in USD.