Precision 3640 Tower with 550W up to 90% efficient (80 Plus Gold) PSU, Advanced Front I/O with SD card readerIntel Core i9-10900 (10 Core, 20M cache, base 2.8GHz, up to 5.2GHz) DDR4-2933, EPEAT 2018 Registered (Silver), Dell Precision TPM, ENERGY STAR Qualified, 32GB (2x16GB) DDR4 UDIMM non-ECC Memory, 1TB PCIe NVMe Class 40 M.2 SSD, 4TB 7200rpm SATA Enterprise AG 3.5" HDD, 92mm Fan w/Holder,36xx, HEATSINK for 65W CPU, 8x DVD+/-RW 9.5mm Optical Disk Drive, Bezel ODD, 3.5" HDD Tray, No Wireless LAN Card, No Additional Network Card Selected (Integrated NIC included) Dell MS116 Wired Mouse Black, Dell Wired Keyboard KB216 Black (English) - US International, Standard Front I/O: 2 USB 2.0 Type-A ports, 1 USB 3.2 Gen1 Type-A port with PowerShare, 1 USB 3.2 Gen2 Type-C port with PowerShare, No SD card reader, 1x 1 Microphone port, 1x 3.5 mm headphone jack, Rear Ports: 2x DisplayPort 1.4, 2x PS2 (Legacy for keyboard and mouse), 1x VGA port / HDMI 2.0 port/ DP++ 1.2 port/ USB Type-C Port with DisplayPort Alt-mode (optional), 2x USB 2.0 Type-A port with SmartPower, 1x RJ-45 port 10/100/1000 Mbps, 2x USB 3.2 Gen2 Type-A, 2x USB 3.2 Gen1 Type-A, 1x Universal Audio Jack, 2 x Integrated external SMA antenna connectors (Optional), Slots: 1x Kensington lock slot, 1x SD 4.0 card slot (optional), 1x Full-height Gen 3 PCIe x16 slot, 1x Full-height PCI- 32 slot, 1x Full-height PCIe x4 slot, 1x M.2 2230 slot for Wi-Fi and Bluetooth card, 2 x M.2 2280 slot for SSD, 4x SATA slots for 3.5-inch HDD, 2.5-inch HDD, and Optical Drive, Weight: starting from 10.60 Kg, Dimensions and Weight: Height: 13.19 (335.00 mm) x Width: 6.95 (176.60 mm) x Depth: 13.58 (345.00 mm), Weight (approximate) 23.37 lb (10.6 kg), Ubuntu Linux 18.04, 3Y Basic Onsite Service Extension