The SK Hynix 16GB RAM DDR4 2133P MHz UB0 NO AC 1628 HMA82GU6MFR8N-TF Desktop memory module is a single module with a total capacity of 16GB. It operates at a clock speed of 2133MHz and is of DDR4 memory type. This RAM is designed for desktop computers and is a reliable option for upgrading or replacing existing memory modules. The product does not come with AC power, but it is compatible with a variety of desktop systems.