A20B-2101-0881 FANUC Drive Side Board PCB

The A20B-2101-0881 is a FANUC circuit board, commonly used as a drive side board in compatible FANUC CNC drive systems. It is an internal PCB component used for drive-related control, signal processing, or connection functions depending on the original drive configuration.

This model is a FANUC drive side board / PCB, not a complete servo amplifier, spindle amplifier, or power supply module. Correct model confirmation, board version checking, connector matching, drive unit compatibility, and professional testing are important before replacement.

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 PCB 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-2101-0881 drive side board is mainly used for FANUC CNC drive system repair and maintenance. It may be required when the original drive PCB is damaged, unstable, burnt, corroded, or causing drive-related alarms.

If your original drive unit has PCB damage or drive-side control problems, this board may be considered as a replacement after confirming the full board number, drive model, connector layout, and machine alarm information.

Quality Control and Testing

For FANUC circuit boards, careful checking is very important before shipment because PCB condition may directly affect drive communication, control signal stability, 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 CNC 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 PCB is A20B-2101-0881. Similar FANUC boards may have different connector layouts, hardware versions, applicable drive models, or compatibility requirements.

If you are not sure whether this FANUC drive side board is suitable for your machine, please send photos of the original board label, full drive unit model, connector side photos, CNC system model, and alarm information. REACO CNC can help check the details before purchase.