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Lenovo ThinkCentre M81 SFF Computer i3-2100 - Windows 10 - Grade A
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For professionals who need speed, stability and manageability with environmentally-friendly computing, Lenovo introduces the ThinkCentre M81. Equipped with 2nd Generation Intel® Core™ processor technology, the ThinkCentre M81 offers up to 20% CPU performance gains. Intel® Turbo Boost 2.0 technology2 dynamically alters CPU speed to give you more power when needed. Integrated Intel® HD Graphics delivers extraordinary graphics that are up to two times faster. For visually-intensive applications, the ThinkCentre M81 supports the use of Quad Independent Display via discreted graphic cards through option. Improve productivity by projecting different application screens on up to four separate displays.
Features
- Intel Core i3-2100 Processor, 3.1GHz 2 Cores 4 Threads
- Intel® HD Graphics (integrated)
- Gigabit Ethernet
- Improved Productivity with Quad Independent Display Support
- Better Maintenance with Standard Manageability
Front I/O
- 2 x USB 2.0
- 1 x Headphone
- 1 x Microphone
Rear I/O
- 1 x VGA
- 1 x DisplayPort
- 1 x Serial
- 6 x USB 2.0
- 1 x RJ-45
- 1 x Audio Line In
- 1 x Audio Line Out
- 1 x Microphone
Included
- Lenovo ThinkCentre M81 SFF Computer
- Power Cord
Optional
- Operating System
Operating System Options
Our Microsoft Authorized Refurbished (MAR) computers and laptops are now predominantly loaded with Windows 11 (Home or Pro), with limited remaining stock available in Windows 10. Please check your product option selections to ensure compatibility with your specific needs, including choosing between Pro or Home versions.
Windows 10 Disclaimer
Windows 10 devices are not eligible to be upgraded to Windows 11. End of Service for Windows 10 will be on October 14, 2025.
Grade A Refurbished
| Functionality |  |
|---|---|
| Cosmetics | |
All refurbished items are restored to full functionality, and their grades reflect only cosmetic condition. Lower-grade products may have more visible blemishes but are rigorously tested and cleaned to ensure identical performance and warranty coverage.
More Great Computer and Laptop Options
ThinkCentre M81 SFF Computer Technical Specs
| Processor | Intel i3-2100 3.1GHz |
|---|---|
| Memory | 4GB DDR3 |
| Storage | 128GB 2.5" SATA |
| Form Factor | Small Form Factor |
| Maximum Memory | 64GB |
| Total Memory Slots | 4 |
| Expansion Slots | 2 PCI 1 PCIe x1 1 PCIe x 16 |
| Optical Drive | DVD-ROM |
| Network Connection(s) | Gigabit Ethernet |
| Front USB Port(s) | 2 (2.0) |
| Rear USB Port(s) | 6 (2.0) |
| VGA Port(s) | 1 |
| DVI Port(s) | 0 |
| HDMI Port(s) | 0 |
| Display Port(s) | 1 |
| Mini Display Port(s) | 0 |
| Serial Port(s) | 1 |
| Parallel Port(s) | 0 |
| eSATA Port(s) | 0 |
| Firewire Port(s) | 0 |
| PS/2 Port(s) | 0 |
| SD Card Reader | None |
No-hassle returns. Zero restocking fees.
Wrong item? Changed your mind? Don't need it anymore? We've got you covered.
30-Day Returns
- No restocking fees, ever
- Refund or store credit — your choice
- 30 days from invoice date
- Return in original condition, securely packed
Fast Shipping
- Ships within 2 business days*
- Rush & Saturday delivery available — call us
- Free ground shipping available (continental US orders over $500)
- Overnight delivery available
1-Year Warranty
- Covers defects & functional failures
- Normal business use, from date of purchase
- Batteries: 90 days (consumable)
- Excludes misuse, modification, mishandling
Need help finding the right product?
Our team is ready with expert support before and after your purchase.
*Shipping and delivery on business days. Purchaser is responsible for return shipping costs and insurance. Free/fixed shipping offers exclude palletized items — call for freight rates.
