Features: Versatility: Supports 22 different brands and models of laptops, meeting the needs of most users and simplifying the operation process. High compatibility: able to quickly adapt to different types of BIOS chip, widely used in all of laptop serial number modification and recovery. Convenient operation: simple design, easy to use, without complex technical background, you can easily complete the BIOS serial number modification. Product Features: Weldless Design: Adopts weldless connection to avoid damage to the motherboards and ensure safety and reliability. Fast identification: with intelligent identification system can automatically identify different models of BIOS chip, greatly improving work efficiency. Specifications: Item：22 in 1 Adapter Quickly adapt to different types of BIOS chip Supports 22 different brands and models of laptops Size: about 6.2x5cm/2.44x1.97in For WSON8 QFN8 testing Package Includes: 1PC 22 in 1 Adapter note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.