2 in 1 SD/TF Card ReaderSD+TF Dual Cards SupportedSupport SD, TF card single port reads simultaneously Applicable to phone, camera, drone, car recorder, etc.1GB File Within 10 SecUSB3.0 interface with a theoretical speed of 5Gbps and 100MB/s actual speed.512 GB High Capacity SupportedWith high capacity powerful chip easily read memory cards up to 512GB.Compatible with Multiple SystemsCompatible with mainstream systems of Win 11/10/8/7/Vista/XP, Mac OS, Linux, IOS, Android OS, etc., support hot-swapping, plug&play.Tiny Size for TravellingStreamline shape design, delicate and compact.