The Apacer AU04GFA60CATBGJ is a 4 GB DDR3 SDRAM memory module designed for desktop PCs. It operates at a frequency of 1600 MHz with a nominal speed of PC3-12800 and a CAS latency of CL11, providing a reliable way to maintain system stability during everyday tasks. Built with a 240-pin DIMM form factor, this unbuffered, non-ECC module runs at a low voltage of 1.35V, which helps reduce power consumption and heat generation within your case. It is a practical choice for users looking to maintain or slightly expand the memory of an older computer to ensure smoother multitasking.