The Nemix mD44800-618 8x16GB PC5-5600 UDIMM is a set of 8 high-quality DDR5 RAM modules designed for computers and laptops. With a total capacity of 128GB, these modules provide ample memory for various tasks. The UDIMM form factor allows for easy installation, while the lifetime manufacturer warranty ensures long-lasting reliability. The PC5-5600 bus speed ensures fast data transfer rates, making it an excellent choice for enhancing the performance of your system.This is a set of 8 (eight) 16GB DDR5 RAM modules packages together. It is an open box set. It was ordered for a server build but the wrong type of memory for the motherboard was ordered and its past the point of being able to return them.