Lenovo ThinkCentre M820z 21.5" 4GB 500GB Intel Core i3-8100 X4 3.6GHz, Black (Certified Refurbished)

  • $437.50
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Condition: Certified Refurbished - Brown/White Box

Warranty Term: 90 Day Warranty
Warranty Provider: Manufacturer

Lenovo ThinkCentre M820z 21.5" 4GB 500GB Intel Core i3-8100 X4 3.6GHz, Black (Certified Refurbished)

The ThinkCentre M820z All-in-One Desktop Computer from Lenovo provides a system that can handle robust workloads thanks to its Intel Core i3-8100 processor and 4GB of DDR4 memory. For storage, the ThinkCentre M820z AIO comes equipped with a 500GB 7200 rpm hard drive. In terms of graphics, Lenovo has armed this ThinkCentre M820z with a 21.5" MVA anti-glare display that has wide-viewing angles. The screen also features a crisp native resolution of 1920 x 1080, which is powered by an Intel UHD Graphics 630 chipset. When you want to extend your screen for work or entertainment, you can connect the ThinkCentre M820z to an optional monitor via its single DisplayPort. Another notable feature of the Lenovo ThinkCentre M820z AIO is that it houses a number of ports for your wired peripherals, which includes four USB 3.1 Gen 1 Type-A inputs on the system's rear along with a single USB 3.1 Gen 1 Type-C input at its side. For faster data transfer and always-on fast charging support, the ThinkCentre M820z AIO also has a USB 3.1 Gen 2 Type-A port, as well as a combo audio jack, and two M.2 card slots for WLAN and/or an optional Intel Optane-supported SSD. Included with the ThinkCentre M820z AIO computer are a wired keyboard and mouse, so you can start working right away. If you prefer to connect to your peripherals wirelessly, this AIO system is designed to support Bluetooth 4.2. The operating system that's preinstalled on the ThinkCentre M820z is Windows 10 Professional, which lets you fully utilize features like Cortana and Windows Continuum. Accessing networks and the internet can be accomplished wirelessly or wired with 802.11ac Wi-Fi and Gigabit Ethernet on board. Once connected online, you can conduct face-to-face conversation by utilizing the AIO's built-in 1080p webcam, microphone, and pair of 2W speakers. Furthermore, with a MIL-STD-810G certification, the ThinkCentre M820z is designed to function in less-than-desirable environments. Lenovo has outfitted this ThinkCentre M820z AIO computer with a versatile UltraFlex III stand that offers tilt adjustments of -5° (forward) and 45° (back), and swivel rotations between -45 and 45°.


  • This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box.
  • 21.5-inch (1920 x 1080) LCD Display
  • Intel Core i3-8100 Processor (Quad-Core, 3.6GHz, 6MB Cache)
  • 4GB DDR4 Memory
  • 500GB (7200RPM) SATA Hard Disk Drive (HDD)
  • Integrated Intel UHD Graphics 630
  • SuperMulti-DVD Burner
  • 5 x USB 3.0, 1 x USB-C, 1 x DisplayPort, 1 x Microphone-in
  • Wired Keyboard and Wired Mouse
  • 2.1MP Webcam
  • 10/100/1000 Gigabit Ethernet, IEEE 802.11ac and Bluetooth 4.2
  • Operating System: Microsoft Windows 10 Professional
  • 13.5" x 19.3" x 13.5" (HxWxD); 11.1lbs
  • Energy Star Compliant, Gold EPEAT

Whats in the Box?

  • Lenovo 21.5" ThinkCentre M820z All-in-One Desktop Computer
  • Power Cord/AC Adapter
  • USB Mouse
  • USB Keyboard


General Information

  • Model Number: M820z
  • Total DVI Outputs: 0
  • Color (Exact): Black
  • Product Line (Desktop): ThinkCentre
  • EPEAT Level: Gold
  • Total VGA Outputs: 0
  • Form Factor: All-in-One
  • Release Year: 2019
  • Energy Star Compliant: YES
  • Total USB-C Ports: 1
  • Lifestyle: Entertainment
  • Total DisplayPort Outputs: 1


  • Hard Drive Speed (RPM): 7200
  • Hard Drive Interface: SATA
  • Hard Drive Type: Hard Disk Drive (HDD)
  • Hard Drive Size (GB): 500


  • Total PCI Express X16 Slots: 0
  • Built-in Media Card Reader: Not Applicable


  • Memory Type: DDR4
  • Maximum Memory Supported (GB): 32
  • Total RAM (GB): 4

Physical Features

  • Item Dimensions (H x W x D Inches): 13.5 x 19.3 x 13.5
  • Color (Generic): Black
  • Item Weight (LBS): 11.1


  • Total USB 2.0 Ports: 0
  • Mouse Included: YES
  • DVD Speed (R/W/RW): 8/8/8
  • Total Headphone Outputs: 1
  • Keyboard Included: YES
  • Total HDMI Outputs: 0
  • Mouse Connection Type: Wired
  • Total USB 3.0 Ports: 5
  • Webcam Megapixels: 2.1
  • Total Microphone Outputs: 1
  • Built-in Speakers: YES
  • Optical Drive Type: SuperMulti-DVD Burner
  • Keyboard Connection Type: Wired
  • Blu-ray Speed (R/W/RW): 0/0/0


  • Maximum Resolution (Width x Height): 1920 x 1080
  • Touch Screen: NO
  • Screen Size (IN): 21.5
  • Display Type: LCD


  • Processor Speed (GHz): 3.6
  • Processor Model Number: Intel Core i3-8100
  • Processor Series: Intel Core i3 8th Gen
  • # of Processor Cores: 4
  • Processor L3 Cache (MB): 6


  • Bluetooth Compatability: 4.2
  • Wireless Network Compatibility: 802.11AC
  • LAN Compatibility: 10/100/1000 Gigabit

Operating System

  • Operating System Version: Professional
  • Desktop Operating System: Microsoft Windows 10


  • Graphics Type: Integrated
  • Video Memory Available (MB): 0
  • Graphics Card Model Number: Intel UHD Graphics 630