The RAM from PHS-memory is specifically designed for the Sony VAIO PCG-9Z1M model and offers a storage capacity of 2 gigabytes. This memory is equipped with a SO-DIMM form factor and operates at a memory clock frequency of 800 megahertz. The type of memory used is DDR2-RAM, which ensures reliable performance for various applications. With 200 pins and a voltage of 1.8 volts, this RAM is optimally tailored to meet the requirements of the Sony VAIO PCG-9Z1M. The 100% compatibility ensures that users can expect easy installation and smooth operation. This RAM is an excellent choice for anyone looking to enhance the performance of their Sony VAIO laptop, whether for everyday tasks or more demanding applications. Using high-quality RAM can significantly improve system speed and multitasking capabilities, leading to an overall better user experience.