USB data blockers with built-in features provide secure, reliable charging by strictly allowing power while preventing any data transfer. This protects your sensitive information when charging in public spaces and reduces the risk of data theft. Key benefits - Data-safe charging: blocks data lines to prevent data transfer, leakage, spyware, or hacking while you power up. - Fast and compatible: smart charging chip supports up to 5-50V/1-5A, delivering power efficiently while keeping data protection active. - Public charging protection: designed to prevent syncing and data access on shared USB ports, giving you peace of mind in airports, hotels, cafes, and other public locations. - Portable design: compact and lightweight, with a transparent casing for visual appeal; easily fits in a pocket, bag, or attaches to a keychain. - Practical use: ideal for travelers, frequent flyers, and anyone who charges in public or shared facilities. Use scenarios - While traveling: use at airports or hotel charging stations to keep devices powered without exposing data. - In public spaces: cafes, libraries, or coworking areas where free USB charging is available. - On the go: clip to a keychain or slip into a pocket for everyday security during commutes and daily errands.