Is the Windows 8.1 upgrade included in the purchase, or is it a separate purchase?

Windows 8.1 is upgradable from Windows 7 Pro 64-Bit, but the product information does not specify whether it is included in the purchase or if it requires a separate purchase.

What ports are available on this desktop for connecting external devices?

The desktop has the following ports for connecting external devices: 2 x USB 3.0 (front), 1 x Microphone, 1 x Headphone (front), 1 x Serial (9-pin) Port (back), 1 VGA, 2 Display Ports (back), 2 x USB 3.0 (back), and 4 x USB 2.0 (back).

Does the Lenovo ThinkCentre M83 support additional RAM upgrades beyond the included 4GB?

Yes, the Lenovo ThinkCentre M83 supports additional RAM upgrades beyond the included 4GB, with a maximum memory supported of 32 GB.

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Lenovo ThinkCentre Desktop Computer M83 Small Form Factor Pro (10AM000VUS) - Intel Core i5 4590 (3.30 GHz), 4 GB DDR3 500GB HDD, Windows 7 Pro 64-Bit with Windows 8.1 Upgradable

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Intel Core i5 4590 (3.30 GHz)
4 GB DDR3 500 GB HDD
Intel HD Graphics 4600
Windows 7 Pro 64-Bit with Windows 8.1 upgradable
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Model
Brand	ThinkCentre
Model	M83 (10AM000VUS)
Part Number	10AM000VUS

Quick Info
Type	Business Desktops & Workstations
Form Factor	Slim/Small Form Factor
Usage	Business
Processor	Intel Core i5-4590 3.3 GHz
Processor Main Features	64 bit Quad-Core Processor
Cache Per Processor	6 MB L3 Cache
Memory	4 GB DDR3 1600
Storage	500 GB SATA 6.0 Gb/s 7200 RPM
Optical Drive	DVD±RW
Graphics	Intel HD Graphics 4600
Ethernet	Gigabit Ethernet
Power Supply	240W
Operating System	Windows 7 Professional 64-Bit / Windows 8.1 Pro Downgrade

Motherboard
Chipset	Intel Q85

CPU
CPU Type	Intel Core i5 4th Gen
CPU Name	Intel Core i5-4590
L3 Cache Per CPU	6 MB
CPU Main Features	64 bit Quad-Core Processor

Graphics
GPU/VGA Type	Intel HD Graphics 4600
Graphics Interface	Integrated video

Memory
Memory Capacity	4GB DDR3
Memory Speed	DDR3 1600
Form Factor	DIMM 240-pin
Memory Spec	4 GB x 1
Memory Slot (Total)	4
Memory Slot (Available)	3
Maximum Memory Supported	32 GB

Storage
HDD	500GB
HDD Interface	SATA III
HDD RPM	7200rpm

Optical Drive
Optical Drive Type	DVD±RW

Display
Screen Size	No Screen

Communications
LAN Speed	10/100/1000Mbps

Front Panel Ports
Front USB	2 x USB 3.0
Front Audio Ports	1 x Microphone, 1 x Headphone

Back Panel Ports
COM	1 x Serial (9-pin) Port
Video Ports	1 VGA, 2 Display Ports
Rear USB	2 x USB 3.0 4 x USB 2.0
RJ45	1 port
Rear Audio Ports	3 ports

Expansion
PCI Slots (Available/Total)	1 PCI Express 3.0 x16 (40W max) 1 PCIe 2.0 x1 1 PCIe 2.0 x16 (x4 elec, 40W max)

Dimensions & Weight
Dimensions (H x W x D)	13.31" x 4.02" x 14.76"
Weight	17.20 lbs.

Additional Information
First Listed on Newegg	September 22, 2025

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Lenovo ThinkCentre Desktop Computer M83 Small Form Factor Pro (10AM000VUS) - Intel Core i5 4590 (3.30 GHz), 4 GB DDR3 500GB HDD, Windows 7 Pro 64-Bit with Windows 8.1 Upgradable

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Meet Your Seller

Lenovo ThinkCentre Desktop Computer M83 Small Form Factor Pro (10AM000VUS) - Intel Core i5 4590 (3.30 GHz), 4 GB DDR3 500GB HDD, Windows 7 Pro 64-Bit with Windows 8.1 Upgradable

Learn more about the Lenovo M83 (10AM000VUS)

Customer Reviews of the Lenovo M83 (10AM000VUS)

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info