All categories

Featured selections

Trade Assurance

Buyer Central

Help Center

Get the app

Become a supplier

Computer rs232 port controller

(999+ products available)

2025-11-17

2/4/8/16-way <strong>RS232</strong> serial <strong>port</strong> relay module <strong>control</strong> board smart home switch <strong>computer</strong> connection <strong>control</strong> - Product Image 1

2/4/8/16-way <strong>RS232</strong> serial <strong>port</strong> relay module <strong>control</strong> board smart home switch <strong>computer</strong> connection <strong>control</strong> - Product Image 2

2/4/8/16-way <strong>RS232</strong> serial <strong>port</strong> relay module <strong>control</strong> board smart home switch <strong>computer</strong> connection <strong>control</strong> - Product Image 3

2/4/8/16-way <strong>RS232</strong> serial <strong>port</strong> relay module <strong>control</strong> board smart home switch <strong>computer</strong> connection <strong>control</strong> - Product Image 4

2/4/8/16-way <strong>RS232</strong> serial <strong>port</strong> relay module <strong>control</strong> board smart home switch <strong>computer</strong> connection <strong>control</strong> - Product Image 5

2/4/8/16-way <strong>RS232</strong> serial <strong>port</strong> relay module <strong>control</strong> board smart home switch <strong>computer</strong> connection <strong>control</strong> - Product Image 6

2/4/8/16-way RS232 serial port relay module control board smart home switch computer connection control

$8.93-32.80

Min. order: 1 piece

<strong>RS232</strong>+RS485 Modbus Protocol 6 Digit Input 4 Relay Output 4 Analog Input 2 Analog Output IO <strong>Control</strong> Module for Industrial <strong>Control</strong> - Product Image 1

<strong>RS232</strong>+RS485 Modbus Protocol 6 Digit Input 4 Relay Output 4 Analog Input 2 Analog Output IO <strong>Control</strong> Module for Industrial <strong>Control</strong> - Product Image 2

<strong>RS232</strong>+RS485 Modbus Protocol 6 Digit Input 4 Relay Output 4 Analog Input 2 Analog Output IO <strong>Control</strong> Module for Industrial <strong>Control</strong> - Product Image 3

<strong>RS232</strong>+RS485 Modbus Protocol 6 Digit Input 4 Relay Output 4 Analog Input 2 Analog Output IO <strong>Control</strong> Module for Industrial <strong>Control</strong> - Product Image 4

<strong>RS232</strong>+RS485 Modbus Protocol 6 Digit Input 4 Relay Output 4 Analog Input 2 Analog Output IO <strong>Control</strong> Module for Industrial <strong>Control</strong> - Product Image 5

<strong>RS232</strong>+RS485 Modbus Protocol 6 Digit Input 4 Relay Output 4 Analog Input 2 Analog Output IO <strong>Control</strong> Module for Industrial <strong>Control</strong> - Product Image 6

RS232+RS485 Modbus Protocol 6 Digit Input 4 Relay Output 4 Analog Input 2 Analog Output IO Control Module for Industrial Control

$18-26.80

Min. order: 10 pieces

Fully Enclosed Fanless Mini <strong>Control</strong> Embedded Industrial Pc Low Power Industrial Host - Product Image 1

Fully Enclosed Fanless Mini <strong>Control</strong> Embedded Industrial Pc Low Power Industrial Host - Product Image 2

Fully Enclosed Fanless Mini <strong>Control</strong> Embedded Industrial Pc Low Power Industrial Host - Product Image 3

Fully Enclosed Fanless Mini <strong>Control</strong> Embedded Industrial Pc Low Power Industrial Host - Product Image 4

Fully Enclosed Fanless Mini <strong>Control</strong> Embedded Industrial Pc Low Power Industrial Host - Product Image 5

Fully Enclosed Fanless Mini <strong>Control</strong> Embedded Industrial Pc Low Power Industrial Host - Product Image 6

Fully Enclosed Fanless Mini Control Embedded Industrial Pc Low Power Industrial Host

$305-315

Min. order: 1 unit

One Way RS485 Relay Board Wiegand 26 Access <strong>Controller</strong> - Product Image 1

One Way RS485 Relay Board Wiegand 26 Access <strong>Controller</strong> - Product Image 2

One Way RS485 Relay Board Wiegand 26 Access <strong>Controller</strong> - Product Image 3

One Way RS485 Relay Board Wiegand 26 Access <strong>Controller</strong> - Product Image 4

One Way RS485 Relay Board Wiegand 26 Access <strong>Controller</strong> - Product Image 5

One Way RS485 Relay Board Wiegand 26 Access Controller

Ready to Ship

$25-27

Shipping per piece: $25.88

Min. order: 10 pieces

4Lan 14Th Gen Core I5-14450HX I7 12650HX Fanless Embedded Industrial Mini Pc 6xRS232 Serial <strong>Ports</strong> GPIO 4xHD 4K Automatic <strong>Control</strong> - Product Image 1

4Lan 14Th Gen Core I5-14450HX I7 12650HX Fanless Embedded Industrial Mini Pc 6xRS232 Serial <strong>Ports</strong> GPIO 4xHD 4K Automatic <strong>Control</strong> - Product Image 2

4Lan 14Th Gen Core I5-14450HX I7 12650HX Fanless Embedded Industrial Mini Pc 6xRS232 Serial <strong>Ports</strong> GPIO 4xHD 4K Automatic <strong>Control</strong> - Product Image 3

4Lan 14Th Gen Core I5-14450HX I7 12650HX Fanless Embedded Industrial Mini Pc 6xRS232 Serial <strong>Ports</strong> GPIO 4xHD 4K Automatic <strong>Control</strong> - Product Image 4

4Lan 14Th Gen Core I5-14450HX I7 12650HX Fanless Embedded Industrial Mini Pc 6xRS232 Serial <strong>Ports</strong> GPIO 4xHD 4K Automatic <strong>Control</strong> - Product Image 5

4Lan 14Th Gen Core I5-14450HX I7 12650HX Fanless Embedded Industrial Mini Pc 6xRS232 Serial <strong>Ports</strong> GPIO 4xHD 4K Automatic <strong>Control</strong> - Product Image 6

4Lan 14Th Gen Core I5-14450HX I7 12650HX Fanless Embedded Industrial Mini Pc 6xRS232 Serial Ports GPIO 4xHD 4K Automatic Control

Ready to Ship

$330.74-555.18

Shipping per piece: $30.08

Min. order: 1 piece

NEW PL2303SA SOP-8 USB to RS-232 <strong>Controller</strong> IC Original Authentic - Product Image 1

NEW PL2303SA SOP-8 USB to RS-232 <strong>Controller</strong> IC Original Authentic - Product Image 2

NEW PL2303SA SOP-8 USB to RS-232 <strong>Controller</strong> IC Original Authentic - Product Image 3

NEW PL2303SA SOP-8 USB to RS-232 <strong>Controller</strong> IC Original Authentic - Product Image 4

NEW PL2303SA SOP-8 USB to RS-232 <strong>Controller</strong> IC Original Authentic - Product Image 5

NEW PL2303SA SOP-8 USB to RS-232 <strong>Controller</strong> IC Original Authentic - Product Image 6

NEW PL2303SA SOP-8 USB to RS-232 Controller IC Original Authentic

Ready to Ship

$2

Shipping per piece: $9.10

Min. order: 1 piece

2 Channel DC5V 10A Industrial IP Network Relay Module Remote <strong>Controller</strong> Ethernet to RS485 Modbus HHT-NET2D - Product Image 1

2 Channel DC5V 10A Industrial IP Network Relay Module Remote <strong>Controller</strong> Ethernet to RS485 Modbus HHT-NET2D - Product Image 2

2 Channel DC5V 10A Industrial IP Network Relay Module Remote <strong>Controller</strong> Ethernet to RS485 Modbus HHT-NET2D - Product Image 3

2 Channel DC5V 10A Industrial IP Network Relay Module Remote <strong>Controller</strong> Ethernet to RS485 Modbus HHT-NET2D - Product Image 4

2 Channel DC5V 10A Industrial IP Network Relay Module Remote <strong>Controller</strong> Ethernet to RS485 Modbus HHT-NET2D - Product Image 5

2 Channel DC5V 10A Industrial IP Network Relay Module Remote <strong>Controller</strong> Ethernet to RS485 Modbus HHT-NET2D - Product Image 6

2 Channel DC5V 10A Industrial IP Network Relay Module Remote Controller Ethernet to RS485 Modbus HHT-NET2D

Ready to Ship

$16.60-17.40

Shipping per piece: $13.40

Min. order: 2 pieces

ESP32-S3 26 Channel GPIO Module ESPHome Home Assistant Smart Home Automation Ethernet Wifi RS485 Relay MOS <strong>Controller</strong> ESS3A22 - Product Image 1

ESP32-S3 26 Channel GPIO Module ESPHome Home Assistant Smart Home Automation Ethernet Wifi RS485 Relay MOS <strong>Controller</strong> ESS3A22 - Product Image 2

ESP32-S3 26 Channel GPIO Module ESPHome Home Assistant Smart Home Automation Ethernet Wifi RS485 Relay MOS <strong>Controller</strong> ESS3A22 - Product Image 3

ESP32-S3 26 Channel GPIO Module ESPHome Home Assistant Smart Home Automation Ethernet Wifi RS485 Relay MOS <strong>Controller</strong> ESS3A22 - Product Image 4

ESP32-S3 26 Channel GPIO Module ESPHome Home Assistant Smart Home Automation Ethernet Wifi RS485 Relay MOS <strong>Controller</strong> ESS3A22 - Product Image 5

ESP32-S3 26 Channel GPIO Module ESPHome Home Assistant Smart Home Automation Ethernet Wifi RS485 Relay MOS <strong>Controller</strong> ESS3A22 - Product Image 6

ESP32-S3 26 Channel GPIO Module ESPHome Home Assistant Smart Home Automation Ethernet Wifi RS485 Relay MOS Controller ESS3A22

$37-40

Min. order: 1 piece

Top categories

Mobile Phone & Computer Repair Parts - Category Image

Mobile Phone & Computer Repair Parts

Used Electronics - Category Image

Used Electronics

Computer Hardware & Software - Category Image

Computer Hardware & Software

Television, Home Audio, Video & Accessories - Category Image

Television, Home Audio, Video & Accessories

Mobile Phone & Accessories - Category Image

Mobile Phone & Accessories

Camera, Photo & Accessories - Category Image

Camera, Photo & Accessories

Video Games & Accessories - Category Image

Video Games & Accessories

Cables & Commonly Used Accessories - Category Image

Cables & Commonly Used Accessories

Projectors & Presentation Equipments - Category Image

Projectors & Presentation Equipments

Other Consumer Electronics - Category Image

Other Consumer Electronics

Chargers, Batteries & Power Supplies - Category Image

Chargers, Batteries & Power Supplies

Portable Audio, Video & Accessories - Category Image

Portable Audio, Video & Accessories

VR, AR, MR Hardware & Software - Category Image

VR, AR, MR Hardware & Software

Earphone & Headphone & Accessories - Category Image

Earphone & Headphone & Accessories

Speakers & Accessories - Category Image

Speakers & Accessories

Smart Electronics - Category Image

Smart Electronics

Related Searches:

rs 232 seri port poe splitter 2 rj45 port data transfer switch 2 port hi speed usb port 2 0 cable rj45 db9 rs232 port tablet rj45 port video switch 8 port 7 inch tablet pc rj45 port pci sata controller 4 port phone tablet pc rj45 port samsung n7100 port raid controller 8 port audio control usb port with usb port pc share rj45 one port