The Lenovo D30 MT-M 0568 ThinkStation Workstation is equipped with an Intel Xeon Quad-Core 1.8GHz CPU and is tailor-made for the most intensive IT environments. Lenovo is a great manufacturer of Servers & Workstations and this unit is proof of that. The D30 Lenovo MT-M 0568 ThinkStation Used Tower PC has a CPU that is more than ready to handle the toughest tasks and being equipped with 16GB of DDR3 ECC RAM gives this unit the multi-tasking power it needs to survive today's demanding applications. With 1TB of Hard-Drive space you can feel confident that you have the space for your files (although most IT pros know they need more space for deployment). To ensure proper functionality the unit has Windows 7 64-Bit fully installed with the COA in-tact. As with all of our products, this item comes with a 30-day no questions ask return policy. If you have any questions, give us a call or e-mail us today.