The Type C Card Reader is a highly practical device. It features a built in powerful chip that enables 5Gbps fast transfer speed, allowing you to quickly read and write on SD cards, Micro SD cards, and USB storage. You can transfer photos and videos in seconds, making it great for sharing memories. With SD/TF dual card slots and a standard USB port, it's compatible with various memory cards and devices such as cameras, USB flash drives, etc. The stable bidirectional transmission means you can easily transfer files between different storage media. Its upgraded fireproof shell offers multiple protections, and it's lightweight and compact for easy portability. There is no mention of size, certification standards, or warranty policy.