Laptop Fingerprint Reader Board with Cable for HP EliteBook 840 G3 / 840 G4

Product Description

The HP EliteBook 840 G3 G4 Fingerprint Reader Board with Cable is an internal replacement fingerprint sensor assembly designed for compatible HP EliteBook laptops.

This fingerprint reader allows users to log in to Windows and authenticate using their fingerprint instead of entering a password, when supported by the laptop hardware, BIOS, and operating system.

It is suitable for replacing a damaged, faulty, or non-responsive fingerprint reader. The assembly includes the fingerprint reader board and connecting cable.

HP service documentation lists different fingerprint reader assembly part numbers for the G3 and G4 generations. Please compare your original assembly before ordering.

Compatible Models

• HP EliteBook 840 G3
• HP EliteBook 840 G4

Fingerprint reader hardware is optional on select configurations. Compatibility must be checked against the original assembly.

Compatible Part Numbers

• 821165-001 – HP EliteBook 840 G3 fingerprint reader assembly
• 849912-001 – HP EliteBook 840 G4 fingerprint reader assembly

Product Details

• Product Type: Laptop Fingerprint Reader Board
• Brand Compatibility: HP
• Laptop Series: HP EliteBook
• Compatible Models: 840 G3 / 840 G4
• Component: Fingerprint Sensor Board
• Included Accessory: Connecting Cable
• Function: Fingerprint Authentication
• Installation: Internal Laptop Component
• Application: Fingerprint Reader Replacement

Product Condition

Condition: Please confirm before publishing — Brand New / Original Used / Refurbished.

Warranty Details

1 Month Replacement Warranty.

Important Note

• Please compare the product with the image provided before placing your order.
• Match the original fingerprint reader part number with the replacement.
• HP EliteBook 840 G3 and G4 may use different fingerprint reader assemblies. Do not assume the two part numbers are interchangeable.
• Check the cable connector, cable length, board shape, and mounting points.
• Fingerprint reader functionality depends on compatible hardware, BIOS settings, drivers, and operating system support.
• Some laptop configurations do not include a fingerprint reader.
• No screws are included unless specifically mentioned in the product description.
• Using an incompatible board may cause fingerprint reader detection or functionality issues.
• If the product is out of stock, your payment will be refunded.
• Immediate replacement will be provided for verified functionality problems, subject to warranty terms.
• Warranty will be void if the product has physical damage at the time of replacement.
• Warranty does not cover external causes, accidental damage, physical damage, cuts, burns, misuse, or missing or damaged warranty stickers or labels.
• Please ensure your delivery address is complete and includes your PIN code and contact number.
• Images shown are for reference purposes only and may not represent the original product photograph.

Frequently Asked Questions

1. Is this fingerprint reader compatible with HP EliteBook 840 G3?
Yes, the HP-listed fingerprint reader assembly part number is 821165-001 for compatible 840 G3 configurations.

2. Is it compatible with HP EliteBook 840 G4?
Yes, the HP-listed fingerprint reader assembly part number is 849912-001 for compatible 840 G4 configurations.

3. Does the product include the connecting cable?
Yes, this listing is for a fingerprint reader board with cable. Please confirm the actual package contents.

4. Will fingerprint login work immediately after installation?
The laptop must support fingerprint hardware, and compatible BIOS settings and drivers must be installed.

5. Does this fingerprint reader come with a warranty?
Yes, it comes with a 1 Month Replacement Warranty, subject to the stated warranty conditions.