Features: This SD2.0 adapter card seamlessly converts between small memory adapter cards with its universals interfaces design, easy insertion. Featuring industrial protections and overcurrent circuits with gold plated contacts, this SD2.0 card converter reduces oxidation risks by 70% compared to standard adapters, Designed for photographers, and users who frequently switching memory cards between compact devices like action cameras and dashcams during activities. Practicality: for embedded devices | Data storage expansion | Fast read and write debugging For intelligent home control panel | Industrial sensorings data collection | Drones Specifications: Component: Special PCB board and metal connectors for electronic components Parameters: Supports standard SD2.0 Compatibles memory cards below 32GB Working voltages 3.3V Size: 18.5x17.5mm Type: Welded/ Unwelded Package Includes: 10PCS Card adapter board module note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution