The Hynix HMA451U6AFR8N-TF 4GB DDR4 2133MHz Desktop Memory RAM is a high-quality memory module designed for desktop PCs. With a total capacity of 8GB spread across 1 module, each with a capacity of 4GB, this RAM is perfect for upgrading your computer's memory capacity. The DIMM form factor and DDR4 SDRAM type ensure compatibility with a wide range of desktop systems. With a bus speed of PC4-17000 (DDR4-2133) and 288 pins, this Hynix RAM module is a reliable and efficient choice for boosting your computer's performance.