Lenovo ThinkCentre M70a Gen 3 (21″)

  • Up to 12th Gen Intel® Core™ i9-12900
  • Up to Windows® 11 Pro
  • Up to Intel® UHD graphics 770 (Integrated)
  • Up to 64GB DDR4-3200, two SO-DIMMs
  • Up to three drives, 2x 2.5″ HDD + 1x M.2 SSD
  • 21.5″ FHD (1920×1080) IPS, low blue light, flicker free, optional 10-point touch

Ports & Slots

  1. 3 x USB-A 3.2 Gen 1
  2. USB-C 3.2 Gen 2
  3. Ethernet (RJ45)
  4. HDMI in 1.4 / Out 2.1 Combo
  5. DisplayPort 1.4
  6. Power in
  7. Microphone mute button
  8. PC / monitor mode switch
  9. 2 x USB-A 3.2 Gen 2
  10. Headphone / mic combo
  11. (Optional) card reader
  12. Power button


Shown with Full Function Stand

A richer experience

The ThinkCentre M70a Gen 3 guarantees an immersive audiovisual experience, with AI noise suppression for crystal-clear videoconferencing and Dolby Atmos for premium sound. As well, the optional conference call base has four Harman® speakers, super-fast USB-C connectivity brings even more clarity and richness to your meetings, while a single click fires up Microsoft Teams. With an innovative tiltable camera, the full-function stand adjusts for ideal ergonomics to suit your work style. Now supporting not only lift and tilt, but adding pivot and swivel (LTPS).

Shown with Full Function Stand

Cooler, quieter, smarter

Powered by up to 12th Gen Intel® Core™ i9 processors, the M70a Gen 3 boasts up to 64GB DDR4 memory and up to 2TB storage. This affordable AIO delivers powerful performance for data-heavy tasks, intelligent security, and fast connectivity for anywhere productivity. Thanks to our Intelligent Cooling Engine (ICE) 4.0, the ThinkCentre M70a Gen 3 all-in-one has different power modes based on your computing needs. Boost the power by up to 15%, lower normal system noise by three decibels, or go for maximum cooling.

Show with Full Function Stand

Energy efficient sustainability

With EPEAT Gold and Energy Star 8.0 certification, the M70a Gen 3 is engineered for energy efficiency. Built with 65% PCC material and delivered in 90% recycled packaging. Lenovo also offers the option of offsetting equivalent CO2 emissions over your device’s production and lifecycle.

Intelligent security

The M70a Gen 3 is protected by Lenovo’s end-to-end ThinkShield security, including intelligent features like Smart USB Protection, discrete TPM 2.0, and user recognition via the IR camera and Windows Hello to keep employees and data safe. The webcam privacy shutter adds an additional layer of physical protection.

Pushed to the limit, & then some

As well as our own rigorous in-house tests, the ThinkCentre M70a Gen 3 all-in-one is measured against 12 US military-grade requirements, including more than 200 quality checks to ensure it can run in extreme conditions. They cover harsh variables like Arctic wilderness and desert dust storms, including tests for temperature, pressure, humidity, vibration, and more.

Processor / Processor Family

Intel® 12th Generation Intel Core™ i3 / i5 / i7 Processor

Processor / Processor

Core i3-12100 (4 cores, 8 threads, 3.3GHz base, 4.3GHz max, 12MB)
Core i5-12400 (6 cores, 12 threads, 2.5GHz base, 4.4GHz max, 18MB)
Core i7-12700 (12 cores, 20 threads, 2.1GHz base, 4.9GHz max, 25MB)

Operating System / Operating System

Windows 11 Home
Windows 11 Pro

Graphics / Graphics

Intel UHD graphics 730, Integrated, Shared
Intel UHD graphics 770, Integrated, Shared

Chipset / Chipset

Intel Q670 chipset

Memory / Max Memory

Up to 64GB DDR4-3200

Memory / Memory Slots

Two DDR4 SO-DIMM slots, dual-channel capable

Memory / Memory Type


Storage / Storage Support

Up to three drives, 2x 2.5" HDD + 1x M.2 SSD
– 2.5" HDD up to 2TB each
– M.2 SSD up to 1TB
Technical support up to 2 HDDs + 1 SSD, but Lenovo® only offers the models with up to 2 HDDs or 1 SSD + 1 HDD

Storage / Storage Type

2.5" SATA HDD, SATA 6Gb/s, 5.4K
2.5" SATA HDD, SATA 6Gb/s, 7.2K
M.2 2280 SSD, PCIe® NVMe® PCIe 3.0 x4, Opal 2.0
M.2 2280 SSD, PCIe NVMe PCIe 4.0 x4 Performance, Opal 2.0
M.2 2280 SSD, PCIe NVMe PCIe 4.0 x4 Value, Opal 2.0

Storage / RAID

RAID 0/1 support for HDDs

Removable Storage / Optical

DVD burner (DVD±RW), SATA connector, slim (9.0mm)

Removable Storage / Card Reader

No card reader

Multimedia / Audio CHip

High Definition (HD) Audio, Realtek® ALC256-NL codec

Multimedia / Speakers

Stereo speakers, 2W x2, Dolby® Atmos®

Multimedia / Microphone

Dual-microphone array
No microphone

Multimedia / Camera

5.0-megapixel, IR + RGB hybrid, with ThinkShutter (physical switch on/off), ±20° view angle adjustable, Windows Hello support
5.0-megapixel, with ThinkShutter (physical switch on/off), ±20° view angle adjustable

Power Supply / Power Supply

180W Fixed

Display / Display

21.5" FHD (1920×1080), None, IPS, 250nits, Anti-glare, 16:9, 1000:1, 72% NTSC, 60Hz
21.5" FHD (1920×1080), Multi-touch, IPS, 250nits, Anti-glare, 16:9, 1000:1, 72% NTSC, 60Hz

Display / Touchscreen

Advanced In-cell Touch (AIT), supports 10-point touch

Input Device / Keyboard

Lenovo Traditional Keyboard (USB connector), black

Input Device / Mouse

Lenovo Calliope Mouse (USB connector), black

Mechanical / Buttons

Microphone mute button
Monitor / PC mode switch button
Power button

Mechanical / Form Factor

AIO (21.5 inches)

Mechanical / Dimensions

Models (with UltraFlex V stand, without camera): 489 x 216.32 x 422.81 mm
Models (with UltraFlex V stand, with camera): 489 x 216.32 x 443.31 mm
Models (with full function monitor stand, without camera): 489 x 217.31 x 454.47 mm
Models (with full function monitor stand, with camera): 489 x 217.31 x 474.97 mm

Mechanical / Packaging Dimensions (WxDxH)

With Full Function Monitor Stand: 605 x 235 x 550 mm
With UltraFlex V Stand: 605 x 248 x 545 mm

Mechanical / Weight

Models (with full function monitor stand, with ODD, with camera): 7.678 kg
Models (with UltraFlex V stand, with ODD, with camera): 7.985 kg

Mechanical / Packaging Weight

With Full Function Monitor Stand: 9.545 kg
With UltraDelx V Stand: 9.968 kg

Mechanical / Case Colour


Mechanical / Bays

2x 2.5" disk bay (2nd 2.5" HDD occupies ODD bay)
1x slim ODD bay

Mechanical / Expansion Slots

Two M.2 slots (one for WLAN, one for SSD)

Mechanical / EOU

Toolless cover, stand, motherboard shielding, HDD, and memory assembly / removal

Mechanical / Stand

UltraFlex V stand, supports -5° to +70° tilt, up to 70°±2° lift (up to 179.96mm lift in flat mode / up to 84.37mm lift in vertical mode)
Full function monitor stand, supports -5° to +20° tilt, left & right 45° swivel, 90° pivot, up to 110mm lift

Mechanical / Mounting

Supports VESA mount 100mm

Mechanical / Others

(Optional) Conference Call Base, 3W x4 Harman speakers, 4 digital microphones array with AI noise suppression, Physical button for Teams, USB-C® connector
Supports Smart Power On

Network / Onboard Ethernet

Gigabit Ethernet, Realtek RTL8111K, 1x RJ-45, supports Wake-on-LAN

Network / Optional Ethernet

No optional Ethernet

Network / WLAN + Bluetooth

Intel Wireless-AC 9560, 802.11ac Dual Band 2×2 Wi-Fi + Bluetooth 5.1, M.2 card

Ports / Rear Ports

1x USB-C 3.2 Gen 2 (support data transfer and 15W charging)
3x USB 3.2 Gen 1
1x HDMI (HDMI in 1.4 / HDMI out 2.1 TMDS combo port)
1x DisplayPort 1.4
1x Ethernet (RJ-45)

Ports / Optional Rear Ports

1x serial

Ports / Right Ports

2x USB 3.2 Gen 2
1x headphone / microphone combo jack (3.5mm)

Ports / Optional Right Ports


Security / Security Chip

Discrete TMP 2.0, TCG certified

Security / Physical Locks

Kensington® Security Slot™, 3 x 7 mm

Security / Chassis Intrusion Switch

Chassis intrusion switch
No chassis intrusion switch

Security / Fingerprint Reader

No fingerprint reader

Security / Other Security

(Optional) ThinkShutter camera cover

Security / BIOS Security

Administrator password
Power-on password
Hard disk password
Boot sequence control
Boot without keyboard and mouse
Self-healing BIOS
Smart USB protection (allows keyboard / mouse only, blocks all storage devices)
Individual USB port disablement

System Management / System Management


Warranty / Base Warranty

1-year courier or carry-in service
1-year limited onsite service
3-year limited onsite service


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