The IBM eServer xSeries 220 (model 864641X) is a reliable and cost-effective server designed for small to medium-sized businesses. Featuring a dual-processor Intel Xeon architecture, it offers solid performance for basic enterprise applications, file sharing, and web hosting. With its compact 1U rack-mountable design, it provides space efficiency while delivering essential features like hot-swap hard drives and redundancy options, making it a robust solution for growing IT infrastructures.