PEC-CS004 is an SD+TF 2-in-1 USB4.0 card reader. It is driver-free and plug-and-play. It supports reading and writing data from mainstream memory cards such as SD4.0/TF4.0 and is backward compatible. It solves the problem of MacBook/Super It solves the problem of card reading without a card slot. The mobile phone turns into a computer in seconds. 260MB/S fast transfer. 1GB file only takes 4 seconds to transfer large files. It is more convenient to batch copy photos. No need to repeatedly plug and unplug data when transferring data. It is safe and durable. It has a powerful built-in chip. And fuse, card reading is safe and stable.