This Samsung 4GB DDR4 SDRAM PC card is a great addition to your desktop computer's memory. With a total capacity of 8GB and a form factor of PC card, it is compatible with a wide range of desktop computers. The card features a single module with a capacity of 4GB, and is designed to provide reliable and fast performance. This memory card is perfect for those who need to upgrade their desktop's memory, or for those who are building a new computer from scratch. The Samsung brand is known for its high-quality products, and this PC card is no exception. Whether you're running demanding applications or simply browsing the web, this DDR4 SDRAM card will provide the performance you need.