Xserve is a complete server solution, designed from the ground up to deliver incredible performance with industry-leading ease of use. This 1U rack-optimized server offers breakthrough-processing power, enormous storage capacity, and best-of-class remote management capabilities that make it easy to deploy and maintain. Xserve includes an unlimited-client license for Mac OS X Server, Apple's UNIX-based operating system with powerful services for Internet and web serving, file and printer sharing, networking, and workgroup management.The new Xserve offers phenomenal value, packing robust server features and exceptional storage scalability into a high-density 1U enclosure. With its ultra-fast processors and memory, it's equipped for the most demanding computing environments. And dual Gigabit Ethernet ensures tremendous networking bandwidth and deployment flexibility. When it comes to storage expansion, Xserve breaks new ground.This makes it easy - and affordable - to expand your storage configuration as your data needs grow. Four independent ATA/100 drive channels reduce bottlenecks to ensure fast data access. In addition, high-performance PCI slots let you connect external SCSI storage and backup systems. Xserve ships with an unlimited client license for Mac OS X Server, offering a comprehensive suite of network services. Built-in remote management tools make it easy to configure and manage key services from any Mac OS X desktop.The all-new Server Monitor application, available only with Xserve, automatically monitors hardware subsystems and displays detailed fault and performance data. If problems are detected, it can notify you via email or email-capable pager, giving you the opportunity to resolve difficulties before they affect your services.