Name: FANUC A20B-3900-0012 PCB
Brand: FANUC
Price: 248.0 USD
Availability: InStock

A20B-3900-0012 Fanuc 8 MB FROM system memory module

FANUC A20B-3900-0012 PCB

FANUC A20B-3900-0012 CNC Memory Module

In stock

• Testing Video Provided

$248.00 USD

Shipping:

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

Returns: 14 days returns. See details

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FANUC A20B-3900-0012 CNC Memory Module

Brand	FANUC
Model	A20B-3900-0012
Handling Time	Within 1–2 working days
Shipping	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 Used (90% new): 3 months
Category	CNC Memory Module
Parameter Description	8 MB FROM memory module; compatibility requires confirmation against the complete original part number and revision.
Service	Test video will be sent before delivery
Packing	Cartons

Ordering-Code Overview

This listing focuses on the exact FANUC reference A20B-3900-0012, not a generic A20B-3900 substitute. FANUC maintenance documentation identifies it as an 8 MB FROM memory module.

Evidence-Based Details

The product identity and 8 MB FROM capacity were checked using the complete A20B-3900-0012 reference. Compatibility with a particular CNC system or host board should still be confirmed from the original unit, machine documentation and visible revision markings.

Machine-Side Verification

Confirm the complete drawing number, module revision, host-board position and any suffix printed on the original unit. Before removing the original module, follow the appropriate procedure to back up the FANUC CNC parameters and preserve programs, SRAM data and other user files using a suitable FANUC all-data backup method.

Send REACO CNC clear photos of the complete label, revision marks and connectors together with the machine or control model. Visible identifiers can be compared before stock, condition, price and lead time are confirmed.

Parts and Service Support

For adjacent product families, browse FANUC PCBs and control cards or explore our complete selection of FANUC CNC and robot parts. These links support product discovery without treating a related code as a substitute.

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