A card reader also a card casespecially designed for cfexpress cards available in two versions: cfexpress type a sd and cfexpress type b sd . This product integrates card storage and ultra-high-speed data reading functions. It serves as the reliable companion for photographers who prioritize both efficiency and convenienceexperience data transfer at warp speedwith a built-in usb3.2 Gen2 chip. It features a transmission speed up to 10gbps compatible with cfexpress memory cards. Boasting theoretical data transfer speeds of up to 1000mb s.Compatible with sd 4.0 Sd micro sd cards via high-speed card adapter boasting theoretical data transfer speeds of up to 312mb shigh-speed micro sd to sd card adaptercomes with a high-speed micro sd to sd card adapter. Supporting sd 4.0 Micro sd cards. With a theoretical data transfer rate of up to 300mb sconnect in a snap share in a flashhot-swapping for plug-and-play. Providing safe ejection protection. And ensuring stress-free insertion and removal. This plug-and-play card reader case works well with your type-c smartphones and pads no need to install app . Thus bridging the gap from card to screen in secondsan eject pin for easy usethe standard multi-functional eject pin can easily remove memory cards and its unique design also doubles as a temporary slotted screwdriver for quick-release platesauxiliary power supplyalways ensure stable data transfer with a dedicated auxiliary power input supporting the external 5v2a power supply