【Card Reader& Card Case 2 in 1】Specially designed for CFexpress Type A/B, SD,Micro 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 convenience | 【Up To 10Gbps Transmission Speed】With 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 which included), boasting theoretical data transfer speeds of up to 312MB/s | 【Dual Card Slots For Transferring】CFexpress and SD/Micro SD dual card slots. Card reader for CFexpress type A/B card and SD/Micro SD cards(SDXC, SDHC, SD Cards,Micro SDXC, Micro SDHC, Micro SD Cards). Can support reading UHS-Ⅱ,compatible with UHS-Ⅰand non-UHS SD and Micro SD memory cards. Comes with a 【high-speed Micro SD to SD card adapter】, supporting SD 4.0 SD/Micro SD cards, with a theoretical data transfer rate of up to 300MB/s | 【Multiple Card Storage】As a card case/card holder, it can hold 3 CFexpress Type-A or 2 CFexpress Type-B cards, 3 SD cards, 4 Micro SD cards, 2 Nano SIM cards, and a card eject pin | 【Detailed Degisn】Made of 【Aluminum alloy】, and come with a 【Silicone case】 to provide fall&shock protection. Carabiner clip allows easy carry. Built-in sealing ring for dust and splash resistance | 【Wide Compatibility】Devices: Cameras, smartphones, drones, action cameras. Memory cards: CFexpress Type-A/B memory cards and up to UHS-Ⅱ, SD 4.0. Systems: Windows 7 and above, Mac OS 10.6 and above, Linux, Android, iPad OS | Note: CFexpress and SD/Micro SD cards cannot be read simultaneously. The product prioritizes CFexpress when both cards are inserted. After CFexpress data transfer, the SD card becomes accessible