The Lenovo server 4 x 2.5" Gen 5 backplane kit offers an efficient solution for organizing and managing drives within your server environment. This kit includes essentials for effective installation and operation, featuring a rear wall bracket, a 4x2.5" rear drive cage, M3 screws, a drive sequence label, and 4 2.5" HDD fillers. Designed for seamless integration, this kit allows for one-to-one drive replacement and efficient use of space, ensuring a tidy and organized server setup.