The Sun Fire V20z server delivers high performance, reliability, and scalability in a low-cost, ultra-dense, rack-optimized 1U form factor. With a single architecture, the Sun Fire V20z server supports both 32-bit and 64-bit computing, allowing you to maintain your existing x86 infrastructure while still enabling a smooth migration to next-generation 64-bit operating systems and applications.This model includes one Intel Quad PCI-X card and one Intel Dual PCI-X card. Checkpoint NG software is loaded but not enabled.