Rack Server

A Rack Server is a physical server designed for installation in a standardised equipment rack. Its height is typically specified in rack units, abbreviated as U, with common form factors including 1U, 2U and 4U. Rack Servers integrate processors, memory, storage, network interfaces and power supplies within a compact chassis. Depending on the model, features may include redundant power supplies, hot-swappable drives and remote management capabilities. The standardised form factor allows multiple servers to be installed efficiently in server cabinets and connected to centralised power, networking and cooling infrastructure. Rack Servers are widely used in data centres, server rooms and enterprise IT environments for virtualisation, databases, applications, storage services and other business-critical workloads.