Specification: Origin: Mainland China English name: Dual TF Card to NGFF Key B Adapter Color: Black Product size: 52.00x30.00x10.00mm Product size: 2.05x1.18x0.39inch Note: Due to different monitor settings and lighting conditions, the actual color of the item may vary slightly from the pictures. Thanks for your understanding! Please allow a 1-2 cm difference in measurements due to manual measuring. Included: 1 x Dual TF card to M.2 Bkey adapter 1 x Screwdriver 2 x M2 thin screw 1. Wide Compatibility: The Micro SD T-Flash TF Card to M.2 NGFF B Key Adapter supports 3042/3052 format M.2 B key interfaces. It is compatible only with B key USB buses, not SATA buses, ensuring versatile use across various devices. 2. Driver-Free Operation: This TF Card Reader Adapter requires no driver installation, allowing users to easily read and write micro SD cards via the M.2 B key interface on laptops without hassle. 3. Designed for Laptops: The M.2 B Key USB Bus to Micro SD TF Card T-Flash Reader Adapter Converter is specifically designed for laptops and embedded computers, providing seamless integration and enhanced functionality. 4. LED Indicator: The M.2 NGFF B-Key to Micro SD TF Card Reader includes an LED feature that indicates power and access status, ensuring users can monitor the device's operation at a glance. 5. OS Support: The T-Flash Card M.2 B Card Adapter is compatible with various operating systems, including Compatible with Win XP, Vista 32/64, Win 7, Win 8, Win 10, Win 11, and Linux, offering broad usability for different users.