On this page we show all CCSI 3U servers. 3U servers, occupying 5.25 inches of vertical rack space, are the right choice if you need room for 4 to 7 full sized expansion cards and or as many as 16 Hot Swappable 3.5 inch hard drives. With current hard drive capacities of 2 terabytes you can have up to 32 terabytes of storage in only 5.25” of rack space! Also, system cooling is nearly a trivial matter in a 3U so you can have the most powerful quad core dual Intel Xeon™ server or even a six core quad processor AMD Opteron™ server with no concern of system overheating. As in all our other severs, high efficiency power supplies of 80% or higher efficiency rating and low wattage CPUs are available to minimize environmental impact.