This Hynix RAM module is designed to improve the performance of your computer system. With a total capacity of 512MB and DDR2 SODIMM technology, this module is compatible with various computers and laptops. The bus speed of PC2-4200 (DDR2-533) ensures that your system runs efficiently and smoothly. The module comes in a single form factor and has a model number of hymp564s64bp6-c4 ab. The brand is Hynix, a well-known and trusted name in the industry. This module will provide a significant boost to your computer's performance, allowing you to run more applications and multitask seamlessly.