This Kingston DDR3 SDRAM memory module has a total capacity of 4GB with a bus speed of PC3-12800 (DDR3-1600). It is a DIMM form factor with 240 pins and non-ECC support. The model number is KP4T2F-PSBS and it has been tested and is in good working condition. This memory module is compatible with various computers, tablets, and networking devices. It is ideal for those who need to upgrade their system's memory performance. With its high-speed capacity, you can easily run multiple applications and programs at the same time without experiencing any lag. Invest in this Kingston DDR3 SDRAM memory module for a smoother and faster computing experience.