A20B-3900-0164 FANUC FROM 32MB / SRAM 2MB Memory Card for RJ3iB

The A20B-3900-0164 is a FANUC PC board / memory card, commonly described as a FROM 32MB / SRAM 2MB memory PCB. It is used in compatible FANUC RJ3iB robot controller systems for memory-related functions, system data storage, SRAM data support, and controller operation.

This model is supplied as a FANUC memory card / FROM SRAM memory board, not a complete robot controller or complete CNC control system. It is also listed as discontinued by manufacturer and described as RJ3iB only, so stock availability and controller 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 memory card 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, memory card matching, and replacement guidance.

Product Information

Product Application

The FANUC A20B-3900-0164 memory card is mainly used for compatible FANUC RJ3iB robot controller repair and maintenance. It may be required when the original memory card is damaged, unstable, missing, or causing robot controller startup, system memory, SRAM, data storage, or operation-related problems.

Because this is a robot controller memory component, replacement should be handled carefully. Before replacement, please confirm the original board number, robot controller model, memory capacity, SRAM data backup status, software or system configuration, and controller compatibility.

RJ3iB Compatibility Note

The A20B-3900-0164 is described as RJ3iB only. Before ordering, please confirm that your original controller is a FANUC RJ3iB controller and that the original memory card model matches A20B-3900-0164.

Using an incorrect memory card may cause controller startup issues, data incompatibility, SRAM-related alarms, software mismatch, or system operation problems.

Quality Control and Testing

For FANUC memory cards and FROM/SRAM memory boards, careful checking is very important before shipment because memory card condition may directly affect controller startup, system data storage, parameter retention, SRAM data, and robot operation. 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 robot and 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 memory card is A20B-3900-0164. Similar FANUC memory cards may have different capacities, hardware versions, SRAM configurations, controller compatibility, or software requirements.

Please back up your robot controller data before replacing memory-related components, including robot programs, system settings, mastering data, option information, and SRAM data if applicable. If you are not sure whether this FANUC memory card is suitable for your robot controller, please send photos of the original memory card label, robot controller model, CPU board model, software version if available, and alarm information. REACO CNC can help check the details before purchase.

FAQ

Q: What is A20B-3900-0164?

A20B-3900-0164 is a FANUC PC board / memory card, commonly described as a FROM 32MB / SRAM 2MB memory PCB.

Q: Is A20B-3900-0164 a complete robot controller?

No. A20B-3900-0164 is a memory card / PCB component, not a complete robot controller or complete control cabinet.

Q: What is the memory capacity of A20B-3900-0164?

The provided product information describes this model as FROM 32MB / SRAM 2MB.

Q: What controller is A20B-3900-0164 used for?

The provided product information states that this model is for RJ3iB only.

Q: Is A20B-3900-0164 discontinued?

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

Q: Should robot controller data be backed up before replacing this memory card?

Yes. Before replacing a FANUC robot memory card, it is strongly recommended to back up robot programs, system settings, mastering data, option information, and SRAM data if applicable.

Q: Can REACO CNC test this FANUC memory card before shipment?

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

Q: What warranty does REACO CNC provide?

For new or refurbished products, REACO CNC usually provides a 1-year warranty. For used 90% new products, the warranty is usually 3 months. The final warranty term depends on the quotation and order condition.

Q: Can you help confirm compatibility before purchase?

Yes. Please send the original memory card photos, full board number, robot controller model, CPU board model, software version if available, and alarm details. We will help check whether this model is suitable for your controller.

Q: Do you also provide FANUC robot memory card replacement support?

Yes. REACO CNC provides FANUC robot memory cards, controller PCBs, CNC memory modules, and replacement support. If your original memory card is faulty, you can contact us for replacement options.