ThinkBook K4-ACN Last Modify Time: 2022-10-28 15:49:17

Overview

1.
USB 3.2 Gen 1
4.
USB-C 3.2 Gen 2
2.
USB 3.2 Gen 1 (Always On)
5.
HDMI
3.
Kensington Nano Security Slot
6.
Headphone / microphone combo jack (3.5mm)

Performance

Processor

Processor Family

AMD Ryzen™ 5 / 7 Processor

Processor**

Processor NameCoresThreadsBase FrequencyMax FrequencyCacheMemory SupportProcessor Graphics
AMD Ryzen 5 5600U6122.3GHz4.2GHz3MB L2 / 16MB L3LPDDR4-4266AMD Radeon™ Graphics
AMD Ryzen 7 5800U8161.9GHz4.4GHz4MB L2 / 16MB L3LPDDR4-4266AMD Radeon Graphics

Operating System

Operating System**[1]

  • Windows® 11 Home Single Language
  • Windows 10 Home 64 Single Language

Notes:
  • 1 :Some features may not be supported on the system with Linux preload, including but not limited to Intel® RST RAID, MIPI computer vision camera, WWAN, Human Presence Detection, etc.

Graphics

Graphics

GraphicsTypeMemoryTGPKey Features
AMD Radeon GraphicsIntegratedSharedShare CPU TDPDirectX® 12

Monitor Support

Monitor Support

Supports up to 3 independent displays (native display and 2 external monitors via HDMI®, and USB-C®) • HDMI supports up to 3840x2160@60Hz • USB-C supports up to 5120x3200@60Hz

Chipset

Chipset

AMD SoC (System on Chip) platform

Memory

Max Memory[1]

  • 8GB soldered memory, not upgradable
  • 16GB soldered memory, not upgradable

Memory Slots

Memory soldered to systemboard, no slots, dual-channel

Memory Type

LPDDR4x-4266

Notes:
  • 1 :The max memory is based on the test results with current Lenovo® memory offerings. The system may support more memory as the technology develops.

Storage

Storage Support[1]

One drive, up to 1TB M.2 2242 SSD

Storage Slot

One M.2 2242 PCIe® 3.0 x4 slot

Storage Type

Disk TypeInterfaceRPMOfferingSecurity
M.2 2242 SSDPCIe NVMe®, PCIe 3.0 x4-256GB / 512GB / 1TB-

Notes:
  • 1 :The storage capacity supported is based on the test results with current Lenovo storage offerings. The system may support larger storage as the technology develops.

Removable Storage

Card Reader

No card reader

Multi-Media

Audio Chip

High Definition (HD) Audio, Realtek® ALC3287 codec

Speakers

Stereo speakers, 2W x2, Dolby® Audio™, audio by HARMAN

Microphone

Dual-microphone array

Camera

HD 720p, with privacy shutter, fixed focus

Battery

Battery

Integrated Li-Polymer 56Wh battery, supports Rapid Charge (charge up to 80% in 1hr)

Max Battery Life[1]

MobileMark® 2018: 13.3 hr

Notes:
  • 1 :All battery life claims are approximate maximum and based on results using the MobileMark 2014, MobileMark 2018, JEITA 2.0, continuous 1080p video playback (with 150nits brightness and default volume level) or Google Power Load Test (PLT) battery-life benchmark tests. Actual battery life will vary and depends on many factors such as product configuration and usage, software use, wireless functionality, power management settings, and screen brightness. The maximum capacity of the battery will decrease with time and use.

Power Adapter

Power Adapter[1]

65W USB-C (3-pin) AC adapter, supports PD 3.0, 100-240V, 50-60Hz

Notes:
  • 1 :AC adapter offerings depend on the country.

Design

Display

Display[1]

SizeResolutionTouchTypeBrightnessSurfaceAspect RatioContrast RatioColor GamutViewing Angle (L/R/U/D)Key Features
14"FHD (1920x1080)NoneIPS300 nitsAnti-glare16:9800:1100% sRGB85°/85°/-/-TÜV Low Blue Light, Dolby Vision™

Touchscreen

Non-touch

Notes:
  • 1 :California Electronic Waste Recycling Fee In California, per state law, Lenovo charges an electronic waste recycling fee on this covered device at the time of sale of the product. For more information, go to https://www.calrecycle.ca.gov/Electronics/Consumer

Input Device

Keyboard

6-row, spill-resistant, multimedia Fn keys, SMB Service Hot key

Keyboard Backlight

  • LED backlight
  • Non-backlight

Touchpad

Buttonless Mylar® surface multi-touch touchpad, supports Precision TouchPad (PTP), 63 x 105 mm (2.48 x 4.13 inches)

Mechanical

Dimensions (WxDxH)[1]

322 x 207 x 14.9 mm (12.68 x 8.15 x 0.59 inches)

Weight[2]

Starting at 1.27 kg (2.8 lbs)

Case Color

Onyx black

Surface Treatment

Anodizing sandblasting

Case Material

Aluminium (top), aluminium (bottom)

Notes:
  • 1 :The system dimensions may vary depending on configurations.
  • 2 :The system weight is approximate and based on results in Lenovo lab, which varies depending on the source of component, variance of the distribution of each component, and manufacturing process. It may not be the exact weight for each specific model.

Connectivity

Network

Ethernet

No onboard Ethernet

WLAN + Bluetooth®[1]

Wi-Fi® 6, 802.11ax 2x2 Wi-Fi + Bluetooth 5.1

Notes:
  • 1 :Bluetooth 5.2 is hardware ready but may run at a lower version due to OS limitations.

Ports[1]

Standard Ports

  • 1x USB 3.2 Gen 1
  • 1x USB 3.2 Gen 1 (Always On)
  • 1x USB-C 3.2 Gen 2 (support data transfer, Power Delivery 3.0 and DisplayPort™ 1.4)
  • 1x HDMI, up to 4K/60Hz
  • 1x Headphone / microphone combo jack (3.5mm)

Notes:
  • 1 :The transfer speed of following ports will vary and, depending on many factors, such as the processing speed of the host device, file attributes and other factors related to system configuration and your operating environment, will be slower than theoretical speed. USB 2.0: 480 Mbit/s; USB 3.2 Gen 1 (SuperSpeed USB 5Gbps, formerly USB 3.0 / USB 3.1 Gen 1): 5 Gbit/s; USB 3.2 Gen 2 (SuperSpeed USB 10Gbps, formerly USB 3.1 Gen 2): 10 Gbit/s; USB 3.2 Gen 2x2 (SuperSpeed USB 20Gbps): 20 Gbit/s; Thunderbolt™ 3/4: 40 Gbit/s

Security & Privacy

Security

Security Chip

No security chip

Physical Locks

Kensington® Nano Security Slot™, 2.5 x 6 mm

Fingerprint Reader

  • Touch style fingerprint reader integrated in power button
  • No fingerprint reader

BIOS Security

  • Power-on password
  • Supervisor password
  • Hard disk password

Other Security

Camera privacy shutter

Service

Warranty[1]

Base Warranty

1-year carry-in service

Notes:
  • 1 :The warranty upgrades may be bundled with some models, please check the "Included upgrade" column in the specific model's configurations. To learn more details of warranty policy, please access https://newsupport.lenovo.com.cn.

Environmental

Operating Environment

Temperature[1]

  • At altitudes up to 2438 m (8,000 ft) - Operating: 5°C to 35°C (41°F to 95°F) - Storage: 5°C to 43°C (41°F to 109°F)
  • At altitudes above 2438 m (8,000 ft) - Maximum temperature when operating under the unpressurized condition: 31.3°C (88°F)

Humidity

  • Operating: 8% to 95% at wet-bulb temperature 23°C (73°F)
  • Storage: 5% to 95% at wet-bulb temperature 27°C (81°F)

Altitude

Maximum altitude (without pressurization): 3048 m (10,000 ft)

Notes:
  • 1 :When you charge the battery, its temperature must be no lower than 10°C (50°F).

Certifications

Green Certifications[1]

Green Certifications

  • CCC
  • (Optional) CECP
  • CEL
  • EMC Class-B
  • ENERGY STAR® 8.0
  • RoHS compliant

Notes:
  • 1 :The items listed under the "Green Certifications" section may not only refer to certification but also registration or self-declaration.

Other Certifications

Mil-Spec Test

MIL-STD-810H military test passed

Other Certifications

TÜV Rheinland® Low Blue Light
  • Feature with ** means that only one offering listed under the feature is configured on selected models.
  • Lenovo reserves the right to change specifications or other product information without notice. Lenovo is not responsible for photographic or typographical errors. LENOVO PROVIDES THIS PUBLICATION “AS IS,” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow disclaimer of express or implied warranties in certain transactions, therefore this disclaimer may not apply to you.
  • The specifications on this page may not be available in all regions, and may be changed or updated without notice.