MB UMA Pent4405U fDDR4

HP 855654-001 is a laptop system board intended for the HP ProBook 440 G3. It is identified as the UMA configuration built around the Pentium 4405U platform, giving this part a specific role in that notebook’s hardware configuration.

The listing marks the board as fDDR4, distinguishing it from other ProBook 440 G3 system-board variants with different processor or graphics configurations. This makes the part identification useful when replacing a board in a matching configuration.

It is a system-board component for the notebook rather than a standalone computer. The listed configuration brings together the Pentium 4405U platform, UMA graphics and fDDR4 designation under the exact part number 855654-001.