The Altex 4GB DDR3 1333MHZ AVF6451U64F9333G7-NYBP desktop RAM is a high-quality memory module designed for computers. With a total capacity of 4GB and unbuffered memory features, this RAM is ideal for boosting the performance and speed of your desktop system. The DDR3 SDRAM technology and PC3-10600 bus speed ensure reliable and efficient data processing. This unit, which has a DIMM form factor and a single module capacity of 4GB, is a perfect choice for upgrading your computer's memory capacity.