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Small green circuit board with two USB ports, one 3.5mm audio jack and attached flex ribbon cable

SMUGDESK

SMUGDESK LSB183P 455MME32L Dual USB & Audio IO Board with Flex Cable for HP ProBook 440 450G2 455 470 Series

SKU CH-N4JX-CG10G

Direct OEM replacement I/O board with dual USB ports, 3.5mm audio jack and flex cable restores side-panel connectivity for HP ProBook 440, 450G2, 455 and 470 series notebooks

  • Restores dual USB and 3.5mm audio ports using exact replacement part LSB183P 455MME32L
  • Preattached flex ribbon cable connects directly to motherboard socket for secure installation
  • Original PCB layout enables hotplug USB peripherals and stereo audio input and output
  • Direct OEM form fit for HP ProBook 440, 450G2, 455 and 470 series notebooks
  • Costeffective repair module fixes wornout or nonfunctional side ports without extra drivers

Direct Replacement IO Board

The SMUGDESK LSB183P 455MME32L is a new replacement sub-board for HP ProBook 440, 450G2, 455 and 470 series notebooks. It integrates two USB ports and a 3.5mm combo audio jack with a pre-attached flex ribbon cable. The assembly restores side-panel connectivity exactly as the original factory part did.

Repair Technicians and DIY Owners

This part suits technicians and owners performing board-level repairs on the listed G2 generation models. Installation requires partial teardown to access the motherboard connector and side housing. Builders needing ports for other laptop generations or different port configurations cannot use this board.

Part Number LSB183P 455MME32L Compatibility

The single deciding specification is the exact part number match: LSB183P 455MME32L. This board only works for the G2 generation models listed; it is incompatible with other generations. Verify the original part number on the defective board before purchase to ensure correct fit.

How it compares

Measured against everything we stock in Laptop Repair Parts, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 83% of the 1,151 comparable items (median $33.99).

Specifications

No published specifications for this item yet.

Questions about this item

How many USB ports does the LSB183P board provide for daily use?

The board integrates two USB ports that support hotplug for flash drives, external hard drives, mice, headsets and microphones without extra drivers.

Does the 3.5mm combo audio jack carry both headphone output and microphone input?

Yes, the 3.5mm jack restores stereo audio input and output so headsets and microphones work exactly like the original factory ports.

Which exact HP ProBook models and part numbers must the buyer already own for this subboard to fit?

It fits ProBook 440, 450G2, 455 and 470 series notebooks and requires the original part number LSB183P or 455MME32L; it is incompatible with other generations.

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