The RAM Lot consists of two SK hynix modules with a total capacity of 4GB each. These DDR3 &DDR4 SDRAM modules are in SO-DIMM form factor and operate at a speed of 12800S and 2133P respectively. With a capacity of 4GB per module, this RAM Lot is ideal for upgrading or replacing memory modules in laptops or desktop computers to improve performance and multitasking capabilities.