This is a Lenovo ThinkStation P series professional workstation. It offers high stability and is easily expandable, making it ideal as a base machine for office use, development, home labs, and light creative work. Model: Lenovo ThinkStation P520 OS: Windows 11 Pro for Workstations (installed) CPU: Intel Xeon W-2102 (2.90GHz) Memory: 8GB SSD: Samsung 960 EVO 250GB (NVMe) GPU: NVIDIA GeForce GTX 960 (2GB) Power Supply: 690W (high-quality power supply) ◾️Expansion and Upgrades The internal structure is well-organized, as befits a workstation; please check the photos for the condition. Power cables for the GPU are installed inside the chassis (see internal photos), making it suitable as a base for graphics card replacement and upgrades. It also has expansion slots and drive bays, making it easy to reconfigure. ◾️Condition Startup and basic operation confirmed (photos available) As this is a used item, there are scratches and scuffs on the exterior (cosmetic only, does not affect operation) ◾️Included Items Main unit only * No power cable, keyboard, mouse, or monitor included ◾️Initialization It will be initialized (reset) and sent with personal information deleted before shipping.