4U Server Chassis – Heavy-Duty Rackmount Enclosures | Server Warehouse

‌4U server chassis are the largest standard rackmount enclosures, offering maximum internal space for enterprise-grade server builds. At 7 inches high, they support the highest drive counts, largest motherboard form factors and multiple full-length expansion cards in a single unit. 4U chassis are the preferred choice for high-capacity storage arrays, virtualisation hosts with multiple GPU cards, and compute-intensive workloads requiring extensive PCIe expansion. The additional height allows for larger fans and more effective cooling, making them suitable for environments running 24/7 under heavy load. Our 4U chassis range accommodates SSI EEB, E-ATX and standard ATX motherboards, with support for up to 12 or more 3.5-inch drive bays depending on the model. All units are designed for standard 19-inch rack installation with rail kit compatibility.