IBM BladeCenter JS22 Express w/ Four 4.0 GHz POWER6 processor cores & 4GB - 32GB memory in four DIMM slots. BladeCenter H, HT and S chassis. The JS22 Express blade has been pre-configured and tested by IBM and is based on proven technology. Utilizing a 4.0 GHz 64-bit POWER6™ processor core and available in a 4-core configuration, it is designed to deliver outstanding performance at compelling prices. With faster and more reliable double data rate 2 (DDR2) memory options and Serial Attached SCSI (SAS) disk subsystem, the BladeCenter JS22 Express is designed for increased uptime and enhanced performance.