The IBM x3500 is an entry-level, stable-life, and mission-critical two-socket tower server designed for managing and protecting mission-critical applications with scalable memory, I/O and storage. A step up from the IBM x3400, the IBM x3500 offers support for up to two Intel Xeon Quad-Core X5460s up to 3.16GHz, a maximum memory of 48GB, and internal storage up to 1.76TB hot-swap SFF, 2.4TB hot-swap SAS, or 6.0TB hot-swap SATA.