The HP ProLiant ML570 G4 server is the industry's first 4 processor expansion server that offers not only exceptional performance, but increased reliability with hot-plug RAID memory, powerful management capabilities, and unmatched internal expansion.With expansion capabilities featuring up to 64GB max memory, support for up to 18 Small Form Factor (SFF) SAS drives, and up to 10 PCI I/O slots, the ProLiant ML570 G4 is a truly expandable and reliable server for a data center or remote enterprise environment. The ML570 G4 now supports Intel's new Xeon dual core processor technology on an 800MHz front-side bus providing performance gains for multi-threaded applications, for example database, financial services, and supply-chain management.