The product is a pair of 16GB DDR4 RAM memory modules from SK hynix, specifically the HMA81GU6CJRBN model. These UDIMM modules have a total capacity of 16GB, with each module containing 8GB of memory. The modules have a bus speed of PC4-25600 (DDR4-3200) and an item height of 30mm. Ideal for upgrading or replacing memory modules in computers that require high-speed DDR4 RAM, these SK hynix modules offer reliable performance and capacity for demanding computing tasks.