In addition, the IBM x3655 comes chockfull of features such as integrated RAID (e.g. mirroring, striping, etc), an integrated memory controller that provides maximum performance for memory-intensive applications, and hot-swap/redundant power & cooling which reduces downtime by maintaining system performance if a fan or power supply fails. The IBM x3655 retails from anywhere between $1000 to $3000 depending on the specifics (e.g. RAM, Drives, etc) chosen, and comes with a 1-3 year limited warranty.