This set of two memory cards from Hynix Korea is ideal for those looking to upgrade their computer's performance. With a capacity of 256MB and a bus speed of PC2-4200 (DDR2-533), these PC Cards are sure to provide a significant boost to your system's speed and efficiency. The cards are in great working condition and have been thoroughly tested to ensure maximum performance. The Brand, Form Factor, Type, and Bus Speed aspects of these cards are all top-notch, making them a great choice for anyone in need of reliable and efficient memory. Whether you're a computer enthusiast or just looking to improve your system's performance, these Hynix Korea memory cards are definitely worth considering.