Description
xFANUC A20B‑3300‑0290 is a CPU / main processor board used inside FANUC CNC controllers — it’s part of the A20B‑3300 series of control PCBs.
🧠 What A20B‑3300‑0290 Is
📌 Part Number: A20B‑3300‑0290
📌 Category: CPU module / processor PCB
📌 Series: FANUC A20B‑3300 PCB family
📌 Function: Main CPU board for FANUC CNC systems — runs the CNC controller’s core logic and processes.
📋 Description & Specs
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This board is a 486 CPU module used as the primary processor board inside FANUC CNC controllers. It contains a 486 processor and 32 MB DRAM, giving it the memory and processing required for typical CNC operations of its generation.
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It’s part of the A20B‑3300 CPU card family alongside related parts like A20B‑3300‑0291 (16 MB DRAM version) and others with different memory or features.
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Installed directly in the CNC controller rack or main board assembly — typically interfacing with other logic boards, axis control cards, display boards, and I/O modules.
📌 Typical Use Cases
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Runs the CNC operating logic: Acts as the central CPU that executes machine control firmware.
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Interfaces with other PCBs: Works with display controllers, axis motion cards, spindle control modules, and I/O boards in the CNC system.
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Replacement / service board: Used to replace a failed CPU card in controllers where this form and series are employed.
Additional Information
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Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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