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20KL, 20KM, A475
Background
The Lenovo ThinkPad A475 is a 14-inch business laptop released in 2017 as part of Lenovo's AMD-based ThinkPad A series. Designed for business professionals, it prioritizes durability, security, and productivity. It meets MIL-STD-810G military testing standards for resistance to dust, shock, vibration, and extreme temperatures.
The A475 features AMD PRO processor-level security, a fingerprint reader for biometric login, and optional TPM 2.0 for data encryption. Common issues reported with this model include battery degradation over time, worn keyboard keys, and occasional thermal throttling under heavy workloads. The hinges and display cable are also known wear points that may require repair over time.
Identification
The ThinkPad A475 can be identified by the model number printed on the label on the bottom of the device. Model numbers begin with 20KL or 20KM. The model number can also be found by accessing the BIOS or checking System Information in Windows.
Technical Specifications
- Processor: AMD PRO A-Series APU (up to A12-9800B quad-core, 2.7–3.6 GHz)
- RAM: Up to 16 GB DDR4
- Storage: Up to 512 GB SSD
- Display: 14-inch, up to 1920x1080 IPS
- Graphics: Integrated AMD Radeon R5 or R7
- Ports: 3x USB 3.0 Type-A, 1x USB 3.1 Type-C, HDMI 1.4b
- Wireless: 802.11ac Wi-Fi, Bluetooth 4.1
- Security: Fingerprint reader, AMD processor-level security
- Weight: 1.85 kg (4.1 lbs)
- OS: Windows 10 Pro
Additional Information
The ThinkPad A475 is part of Lenovo's AMD-based ThinkPad A series, distinct from the Intel-based ThinkPad T series. It is ENERGY STAR 6.1 certified and EPEAT Gold rated (US only).
Sources for Lenovo ThinkPad A475:
• https://psref.lenovo.com: Provides official product specifications, hardware maintenance
manuals, and configuration details directly from Lenovo.
• https://support.lenovo.com: Lenovo's official support portal with drivers, firmware
updates, and hardware replacement guides.
• https://www.ereplacementparts.com: Includes detailed part diagrams and troubleshooting
support for ThinkPad models.
• https://www.partselect.com: Offers OEM parts and repair diagrams for the ThinkPad
A475 model.
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