Skip to product information
A20B-2100-0230 Fanuc 4-slot backplane PCB for 16i 18i 21 Model A CNC systems

FANUC A20B-2100-0230 4-Slot CNC Backplane

In stock

Testing Video Provided

$248.00 USD
Fast and safe checkout via PayPal
Secure online payments with Visa
Accepted credit card payments through Mastercard
Online payments accepted via Discover card
Convenient and trusted payments via American Express

Shipping:

Reliable global express shipping by DHL
Worldwide parcel delivery by UPS
Fast and secure shipping by FedEx

Delivery: Estimated 2- 6 business days delivery. See details

Returns: 14 days returns. See details

All parts are covered by REACO CNC warranty

All parts are covered by REACO CNC warranty

Every part is carefully inspected and tested for reliability。

All parts tested under load

Global Delivery for Fanuc and Mitsubishi CNC parts

Fast response, global shipping, expedited shipping available

tech support for CNC repair and parts.

Free technical support

More than 150,000 parts in stock & ready for delivery

More than 100,000 parts in stock & ready for delivery

FANUC A20B-2100-0230 4-Slot CNC Backplane

Brand FANUC
Model A20B-2100-0230
Handing time within 1-2 working days
Shipping Method DHL/UPS/FedEx
Estimated Delivery Time (via DHL)

Asia: 1-3 business days

Europe: 2-4 business days

North America: 2-4 business days

South America:  3-6 business days

Middle East & Africa: 3-6 business days

Oceania: 2-5 business days

Warranty NEW/Refurbished: 1-Year warranty
Used(90% New): 3-Month warranty
Category PCBs
Parameter Description

A20B21000230
BACKPLANE 4SLOT 16I 18I 21 MODEL A
4 SLOT BACKPLANE PCB

Service Test video will be sent before delivery
Packing Cartons

 

The FANUC A20B-2100-0230 is a 4-slot backplane PCB designed for FANUC 16i, 18i, and 21 Model A CNC control systems.

This backplane provides the connection structure required for compatible CNC boards and modules installed within the controller. Its four-slot layout supports module organization, internal signal distribution, and communication across connected system components.

The A20B-2100-0230 is suitable for CNC backplane replacement, controller restoration, and control cabinet maintenance when the existing board develops damaged connectors, unstable card contact, or internal communication faults.

  • Fully tested before shipment
  • In stock and ready to ship
  • Fast global shipping available

Product Details

  • Part Number: A20B-2100-0230
  • Type: 4-Slot Backplane PCB / CNC Backplane Board
  • Slot Configuration: 4 Slots
  • Compatible Systems: FANUC 16i / 18i / 21 Model A
  • Product Series: A20B-2100
  • Application: FANUC CNC Control Systems
  • Function: Module connection, signal distribution, and internal communication
  • Category: CNC Backplane PCB / FANUC System Board

Common Use Cases

  • Backplane replacement for FANUC 16i, 18i, or 21 Model A
  • Repair of damaged module slots and board connectors
  • CNC controller communication fault diagnosis
  • Control cabinet rebuilding and system restoration
  • Maintenance of existing FANUC machine tool controls

Sales & Support

  • Every backplane PCB is inspected and tested before dispatch.
  • International shipping is available through DHL, UPS, FedEx, and other express services.
  • Repair service, warranty coverage, and technical guidance are available for FANUC CNC boards and control components.
Warehouse shelves filled with boxed FANUC CNC parts, showing Reaco CNC’s large inventory for fast global delivery.

Over 100,000 CNC Parts in Stock

With an extensive inventory of FANUC and Mitsubishi components, we ensure fast delivery and reliable replacements — minimizing your downtime.

Shop now
Packaging process showing wooden crates for heavy items and reinforced double-layer cartons for standard products.

Fast Global Delivery

  • DHL, UPS, FedEx Global shipping.
  • Expedited shipping available
  • Packed in secure reinforced cartons for maximum protection during transport.
Technician operating FANUC CNC testing benches during system inspection and repair at REACO CNC.

Need Expert Assistance?

Our experienced engineers provide technical support for all FANUC and Mitsubishi CNC parts — including troubleshooting, installation guidance, and repair consultation.

Get in touch

Hot Selling FANUC Parts

View all