Lenovo ThinkCentre M820z All-in-One Desktop PC (10SC002SSA) - 9th Generation Intel Core i5-9400 Processor, 4GB DDR4 2666MHz RAM (1 x 4GB, 2 SO-DIMM Slots, 32GB Max), 1TB 7200RPM 2.5" Hard Drive, 21.5" Full HD IPS Anti-Glare Display (1920 x 1080), DVD-RW, Intel UHD Graphics 630, 1080p Webcam, 2 x 2W Internal Speakers, 2 x Array Microphone, Intel 8265 11ac, 2x2 + Bluetooth 4.2, Connectivity: Rear Ports: 4 x USB 3.1 Gen 1 (one supports Smart Power On), 1 x DisplayPort, 1 x Ethernet (RJ-45), Right Ports: 1 x USB 3.1 Gen 2 (Always On and fast charge), 1 x Headphone/Mic Combo Jack (3.5mm), 1 x USB-C 3.1 Gen 1, USB Keyboard + Mouse, Windows 10 Pro 64-Bit