A20B-2100-0742 FANUC Control Board

The A20B-2100-0742 is a FANUC control board used in compatible FANUC industrial control equipment. It is an electronic board component for system control, data processing, communication, and machine operation support depending on the original equipment configuration.

This model is supplied as a FANUC control board / industrial PC board, not a complete CNC control system, complete robot controller, or complete drive unit. It is also listed as discontinued by manufacturer, so stock availability and compatibility should be confirmed before ordering.

Worldwide Shipping & REACO CNC Service

• Worldwide Shipping: We can ship worldwide by DHL, UPS, FedEx, or other available logistics channels.
• Fast Handling: In-stock items can usually be shipped within 1-2 working days after payment.
• 100% Tested Before Delivery: Each qualified control board is tested or checked before shipment. Product photos or a test video can be sent before delivery when required.
• REACO Warranty: New or refurbished products usually include a 1-year warranty, and used 90% new products usually include a 3-month warranty.
• Free Technical Support: Our team can help with basic model confirmation, board matching, and replacement guidance.

Product Information

Product Application

The FANUC A20B-2100-0742 control board is mainly used for compatible FANUC industrial control equipment repair and maintenance. It may be required when the original control board is damaged, unstable, burnt, corroded, or causing system startup, communication, data processing, Ethernet connection, or machine operation-related faults.

Because this is a board-level control component, replacement should be carried out after confirming the original board number, system configuration, CPU/socket requirement, memory type, connector layout, Ethernet port configuration, and fault details.

Memory and Configuration Note

The provided product information includes maximum RAM capacity 24 GB, Socket Type 478, Ethernet ports, single memory channel, and RDRAM / DDR2 memory type. Before ordering or replacing this board, please confirm the original hardware configuration and memory compatibility carefully.

Incorrect board configuration, wrong memory type, incompatible socket configuration, or mismatched system setting may cause startup failure, system instability, communication problems, or control system errors.

Quality Control and Testing

For FANUC control boards and industrial PC boards, careful checking is very important before shipment because board condition may directly affect system startup, data processing, network communication, machine operation, and repair success rate. REACO CNC checks qualified products carefully and can provide real product photos or a test video before delivery when required.

Our goal is to help customers receive reliable FANUC CNC, robot, and industrial control spare parts with clear product information, careful inspection, responsive after-sales support, and practical technical assistance.

Compatibility Confirmation

Before ordering, please confirm that the full board number on your original board is A20B-2100-0742. Similar FANUC control boards may have different hardware versions, connector layouts, socket types, memory requirements, Ethernet configurations, system compatibility, or software requirements.

If you are not sure whether this FANUC control board is suitable for your machine, please send photos of the original board label, connector side photos, system model, machine model, memory configuration if available, and alarm or fault details. REACO CNC can help check the details before purchase.

FAQ

Q: What is A20B-2100-0742?

A20B-2100-0742 is a FANUC control board used in compatible FANUC industrial control equipment.

Q: Is A20B-2100-0742 a complete CNC system?

No. A20B-2100-0742 is a control board / electronic board component, not a complete CNC control system, robot controller, or complete drive unit.

Q: Is A20B-2100-0742 discontinued?

Yes. This model is described as discontinued by manufacturer. Please confirm stock availability before ordering.

Q: What socket type does A20B-2100-0742 use?

The provided product information describes this model with Socket Type 478.

Q: What is the maximum RAM capacity of A20B-2100-0742?

The provided product information describes the maximum RAM capacity as 24 GB.

Q: What memory type is listed for A20B-2100-0742?

The provided product information lists RDRAM / DDR2 memory type and single memory channel.

Q: Does A20B-2100-0742 include Ethernet ports?

Yes. The provided product information includes Ethernet ports.

Q: Can REACO CNC test this FANUC control board before shipment?

Yes. REACO CNC tests or checks qualified control boards before delivery. Product photos or a test video can be sent before shipment when required.

Q: Can you help confirm compatibility before purchase?

Yes. Please send the original board photos, full board number, connector side photos, system model, machine model, memory configuration if available, and alarm or fault details. We will help check whether this model is suitable for your machine.

Q: Do you also provide FANUC control board repair service?

Yes. REACO CNC provides FANUC control board sales and repair support. If your original board is faulty, you can contact us for replacement or repair options.