Thermal Printer Main Board PCB Kit RS232 + USB + LAN 3 Port | Universal POS Printer Replacement Controller Board

Upgrade or repair your POS receipt printer with the Thermal Printer Main Board PCB Kit RS232 + USB + LAN 3 Port, a high-quality replacement controller board designed for compatible 58mm and 80mm thermal receipt printers. Featuring RS232, USB, and LAN (RJ45) interfaces, this versatile PCB provides flexible connectivity for modern and legacy POS systems, making it an ideal solution for businesses that require multiple communication options.

Built with durable industrial-grade components, this controller board supports ESC/POS printing commands, ensuring stable performance, reliable data transmission, and smooth receipt printing. Whether you're repairing a damaged printer or upgrading its connectivity, this 3-port main board offers a cost-effective and dependable solution.

Key Features

• Universal Thermal Printer Main Board PCB Kit
• Triple Interface: RS232 + USB + LAN (RJ45)
• Compatible with 58mm & 80mm Thermal Receipt Printers*
• High-Speed & Stable Data Communication
• Supports ESC/POS Printing Commands
• Industrial-Grade PCB Construction
• Easy Installation & Replacement
• Network, Serial & USB Printing Support
• Reliable Continuous Commercial Performance
• Compact Controller Board Design
• Low Power Consumption
• Long Service Life

*Compatibility depends on the printer model, firmware, and connector layout.

Ideal For

• POS Receipt Printers
• Retail Stores
• Supermarkets
• Restaurants
• Cafés
• Pharmacies
• Hotels
• Warehouses
• Logistics Companies
• Printer Repair Centers
• Service Technicians
• Office Billing Systems

Compatibility

Compatible with many 58mm and 80mm thermal receipt printers that support this PCB layout.

Supported Interfaces:

• USB
• LAN (RJ45 Ethernet)
• RS232 Serial Port

Compatible with:

• Windows
• Linux
• Android POS Systems
• POS Billing Software
• Retail Management Software
• ESC/POS Compatible Applications

Technical Specifications

• Product Type: Thermal Printer Main Board PCB Kit
• Application: Thermal Receipt Printer Replacement Controller Board
• Interfaces: RS232 + USB + LAN (RJ45)
• Communication Protocol: ESC/POS
• Connectivity: Serial, USB & Ethernet Network
• PCB Material: High-Quality Industrial Circuit Board
• Installation: Internal Replacement PCB
• Suitable For: Compatible 58mm & 80mm Thermal Receipt Printers
• Usage: POS Printing, Receipt Printing, Billing Systems

Why Choose This Thermal Printer Main Board?

The Thermal Printer Main Board PCB Kit RS232 + USB + LAN 3 Port provides maximum flexibility by supporting three communication interfaces in a single controller board. It allows businesses to connect printers to modern USB systems, Ethernet networks, or legacy serial POS terminals without replacing the entire printer. Its reliable performance, durable construction, and easy installation make it an excellent choice for printer repairs, upgrades, and long-term commercial use.

What's in the Box?

• 1 × Thermal Printer Main Board PCB Kit (RS232 + USB + LAN 3 Port)