The IBM BladeCenter LS22 is a 2-socket, quad-core blade server delivering high performance for memory-intensive applications.Slim and powerful, the blade design delivers high density without sacrificing server processor performance. Up to 84 dual-socket servers in an industry-standard rack or up to 40 dual-socket servers in a telecommunications industry-standard 84-inch rack, packing more performance per square foot and saving you valuable real estate.Support for quad-core processors running up to 2.7 GHz. Support for standard-power processors as well as high-efficiency processors that draw up to one-third less power than the standard processors. AMD Opteron processors offer an Integrated Memory Controller that allows for increased bandwidth, reduced latency and energy efficiency for many applications. Dual-Dynamic Power Management optimizes power consumption between the processor cores and memory controller and helps boost performance.The LS22 supports up to two internal SAS HDDs in a choice of capacities. Solid-state drive improves reliability and energy efficiency with a choice of capacities up to 32 GB each. The Storage and I/O Expansion Blade (SIO) allows support for up to three additional hot-swap HDDs. The SIO includes optional support for RAID-5 and battery-backed cache.