Name: Mitsubishi HR742 CNC Memory Board – BN638B451G52
Brand: MITSUBISHI
Price: 330.0 USD
Availability: InStock

Side view of the HR742 showing the black CBUS connector and blue battery in its holder

Mitsubishi HR742 CNC Memory Board – BN638B451G52

In stock

• Testing Video Provided

$330.00 USD

Shipping:

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 tested under load

Fast response, global shipping, expedited shipping available

Free technical support

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

The Mitsubishi HR742 is the internal CNC memory board used in the EZMotion-NC E68 FCU6-MU072 control unit. The board shown is marked BN638B451G52 on the reverse and has a CBUS connector, a battery holder, and a BAT connector.

Product Specifications

Brand	Mitsubishi Electric
Model	HR742
PCB Marking	BN638B451G52
Product Type	Internal CNC memory board
Documented Control Unit	FCU6-MU072 (EZMotion-NC E68)
Documented Backup Battery	Q6-BAT, 3 V lithium battery
Origin Marking	Made in Japan

Fitment and Machine Data

Send us your CNC control unit nameplate and clear photos of both sides of the original board. We can compare the PCB marking and connector layout before you order. Back up your machine's CNC parameters, machining programs, and tool data before replacing the memory board.

Battery Configuration

The photos show a battery fitted in the holder. Please confirm battery inclusion when ordering, as shipping options depend on the destination and carrier.

Testing, Shipping, and Warranty

We provide a test video before dispatch and free technical support. Each board is packed in protective anti-static packaging.

Confirmed in-stock orders typically ship within 1–2 business days. We ship worldwide via DHL, UPS, or FedEx and provide an estimated delivery time with your quote.

New and refurbished units carry a 12-month warranty. Used units carry a 3-month warranty.

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Packed in secure reinforced cartons for maximum protection during transport.

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