9u Server Rack Or Cabinet,600x600x500 Mm.

The "U" stands for rack unit, a standard unit of measure for the height of equipment mounted in a server rack, where 1U equals 1.75 inches. Therefore, a 9U rack is 15.75 inches tall. These racks are commonly used to house and organize equipment like CCTV systems, network devices, and servers in small businesses or homes.