The HP Pro Liant DL180 Gen 9 Server delivers an optimized 2U server, designed with the right balance of expandability, performance, reliability & manageability all in a new compact chassis, making it the ideal platform for SMBs & Enterprises running the " New Style of IT", applications such as Hadoop, Cloud & mobility applications which need right mix of compute & storage. Memory Options available up to 256GB, add QF 664851 for an additional 8GB or to add 16GB see QF 664853. Hard drive options available, add QF 359077 for 500GB or to add 1TB see QF 359324. OS options recommended are QF 611751 Server Standard R2 2012 or 611750 Server Essentials R2 2012. 3 Year Next Business Day Warranty available here, for more options please contact solutions@ebuyer.com.