Forget about waiting to unload your files. With two SDXC slots, the SD Dual Card Reader transfers data from two SD cards simultaneously at unrestricted speeds. Compatible with USB and Thunderbolt 3, the Angelbird SD Dual Card Reader is the only reader option with individual write protection, ensuring that your files are not accidentally deleted or the card formatted. It supports file unloading at unrestricted speeds. The individual write protection switch per port provides extra security. The reader is shock and temperature resistant. Maintain data flow with connection ports that are compatible with previous, current, and future standards. Flexible connection options ensure you always have the right cable on hand. The recessed Solid Connect port guarantees that the connection remains stable and does not wear out prematurely. Protect your data files from unwanted formatting or accidental deletion with write protection features per card slot, as well as ESD and overload protection.