HP 855657-001 is a system board for a notebook, specified with an Intel Core i5-6300U processor. It serves as the main board assembly for a system built around this processor configuration.
This version is listed with UMA graphics and for systems using DDR4 memory. Those details distinguish it from other system-board configurations in the same part-number range. The description identifies the processor and memory category; it does not specify memory capacity or included accessories.