HP 5S4C4AA, 16 GB, 1 x 16 GB, DDR5, 4800 MHz, 262-pin SO-DIMM HP 5S4C4AA. Component for: Laptop, Internal memory: 16 GB, Memory layout (modules x size): 1 x 16 GB, Internal memory type: DDR5, Memory clock speed: 4800 MHz, Memory form factor: 262-pin SO-DIMM