Enjoy ultimate flexibility with the enterprise-class, 1U, single-socket Think Server RS140 rack server. This compact form factor has a 16.2" deep chassis & features outstanding support for embedded graphics CPUs. How is Lenovo Think Server RS140 versatile for business? It's loaded with features, gives you the choice of a dual-chassis, & has a slim, 1U design. The RS140 runs a range of operating systems, including client OS capability for retail applications. It's among the quietest models in the industry, & it features easy-to-use, industry-standard management tools. Memory Options available up to 32GB, add QF 624534, for 4GB or to upgrade the memory add QF 624535 for 8GB. Hard drive options add QF 658004, 500GB drive (Up to 2 bays total / 2 free). OS options recommended are qf 695536 Server Std 2012 or 695387 Server Essentials 2012. 3 Year 24x 7 Warranty available here, for more options please contact solutions@ebuyer.com.