Grade: B Brand & Model: Lenovo ThinkCentre M900 USFF PC Processor: Intel i5-6500T 2.5Ghz Screen: N/A Memory: 4GB DDR4 Storage: 500GB SATA HDD Optical Drive: None Graphics: Intel Corporation HD Graphics 530 Input Device: None Operating System: Windows 10 Home 64 Bit Wireless: No Bluetooth: No Ports: 8 X USB 3.0, RJ-45 Network Port, VGA port, Display Port, VGA Port, 3.5mm headphone jack, Serial Port, Warranty: 12 Months Info: