Single stick (1x8GB). Works perfectly. Very slight signs of wear.The Corsair Vengeance LPX 8GB DDR4 2400 memory module is a high-quality RAM designed for gaming and other intensive tasks. With a total capacity of 8GB, this module offers fast performance at 2400MHz. Made by Corsair, a trusted brand in computer components, this DDR4 SDRAM module is reliable and efficient. The module features ECC memory and is fully buffered for enhanced stability and performance. Perfect for users looking to upgrade their computer's memory capacity, this Corsair Vengeance LPX module is a great choice for optimized performance.