Like its peer, the x3950 M2 also offers optional 2/3/4 chassis support, support for up to four Intel Xeon Series 7400s up to 2.66GHz, a maximum memory of 256GB DDR, and internal storage up to 587GB SAS per chassis. In addition, the IBM x3950 is fraught with numerous notable features such as a furth-generation IBM X-Architecture chipset design that enhances delivery performance, Active Memory with Memory ProteXion & Chipkill that work together to reduce downtime and maintain data integrity, and the ability to upgrade to a scalable system with the ScaleXpander Option kit allowing users the flexibility to scale as their business needs change. The IBM x3950 M2 retails from anywhere between $7000 to $20000 depending on the specifics (e.g. RAM, Drives, etc) chosen, and comes with a 3 year limited warranty.