The product is an HP laptop memory module with a capacity of 4GB and a speed of 2400MHz. It is designed in SO-DIMM form factor and operates at a low voltage of 1.2V. The memory type is DDR4 SDRAM, providing efficient performance for compatible laptops. The model number is 862397-850, offering a reliable and compatible upgrade option for enhancing the system's memory capacity and speed. Random access memory.