Use: Mirrorless camera system Origin: CN (origin) Style: Cord Bags Type: Moisture-Proof Box / Cabinet Model Number: PU5004 Material: Abs Packing: Yes Characteristics 1. Compact and lightweight design, convenient to carry. 2. Adopt environmental protection ABS material without no odor. 3. It is a resistant, polycarbonate water resistant case made to carry and store memory cards. 4. Convex design in case makes the most ergonomic and more comfortable card media case. 5. The case adopts a compact design, the two compartments allow you to store 1 standard SIM + 2micro-sim + 2nano-sim + 3cf + 7sd + 6tf (not included). 6. The case with a micro USB 3.0 port, can as a card reader to read the TF / CF / SD card. 7. With a 3 in 1 USB cable, USB 3.0 + micro USB 2.0 + type-C to micro USB 3.0. 8. Blue water-resistant TPV material seal maintains unwanted debris and water from entering the case. 9. Note: cards are not included. Grades 1. The reading card function of this product only supports devices with OTG function, does not support iOS Apple iPhones. 2. Part of the OTG devices need to open OTG in the Smartphone configuration manually. 3. The OTG function does not support the 64GB or more card. How to read the card 1. Open positive blue soft rubber seal on the left side. 2. Open the card box, place the card on the card slot, and then close the cover. 3. Use the data cable to connect to the USB port of the tail of the reading card box. 4. Use the corresponding data transmission port to connect the corresponding devices that support the OTG protocol. Q & A 1. Q: microSD and SD card, how much capacity can read? What if he can read SDXC card? -A: microSD and SD card, it can read up to 128GB on the PC, but read up to 64GB when connecting OTG phones. It can read SDXC card. 2. Q: CF and SD card (or microSD) can not read at the same time when the second card connects, the first card can not work. -A: Yes, he can not read two cards or more at the same time. 3. Q: I tried 8GB, 32GB microSD card, can not identify. But I put the microSD card on the microSD card adapter, then intert this product, it can read the card, why? -A: First, you can try to change another card or re-remove the microSD card and insert the card reader again. The second reason is that related to the data cable. Or the card may connect in the opposite direction.