About Express Delivery
our store randomly sends ZTO, YTO, and Yunda Express. If you need to specify, please note in the buyer's message. ZTO, YTO, and Yunda
please contact customer service to send other express and make up the corresponding difference. (Free shipping area is limited to mainland China)
· About speed
all the data stored in our store comes from the official. Due to the computer configuration and file size attributes, the test results will be affected,
therefore, the actual use speed is different.
· About capacity
the actual available capacity of the storage product is about 90% of the identified capacity! That is because computers and storage products have different algorithms for capacity (computers) 1G = 1024m, and storage products are 1G = 1000m), in addition, storage products will also have some space for curing some programs before leaving the factory. All storage products are the same, 8g = 7.4g, 16g = 14.5g, 32g = 28.8g, 64G = 58g
· USB flash drive plug in computer without reaction
the driver is automatically installed under normal circumstances. If it is not recognized, turn off the firewall and anti-virus software of the computer before trying. Such
if the problem cannot be solved, please contact the online customer service and have professional customer service guidance to ensure your normal use of the equipment.
· U disk compatibility
1. Please make sure that the USB flash drive is connected to the device properly.
2. Please confirm whether the device used at the time supports this capacity USB flash drive and the corresponding file system (exFAT/NTFS)
3. Please confirm whether the files in your USB flash drive can be supported by the device.
4. The main control schemes used by different devices in the market are different, and there may be compatibility problems.
· Cannot copy large files over 4G
to be compatible with the system, the default format of the product is FTA32 (Microsoft's default disk format). A single file cannot exceed 4GB. If you need to store more than 4GB of files, reset the USB disk format: 1. Connect USB flash drive to Computer 2. Right-click the U disk partition and select Format 3. Select NTFS or exFAT format in file system options 4. Click Start.
· The device is unresponsive or recognized for a long time.
This may happen because the USB flash disk is not plugged in or the USB port voltage of the computer is not enough. Please replace other USB ports (the USB port behind the chassis can be used for desktop computers), if several USB ports or other computers cannot be identified, the USB flash drive may be damaged and need to be repaired.
· Expand U disk recognition:
expanding the USB flash disk is to use relevant software to make the USB flash disk with small capacity show a large capacity on the computer (for example, 2G shows 8g), but the extra memory cannot be used normally, the saved file cannot be opened, resulting in the loss of file data.

Notes on this USB flash drive:
i. About the quality of USB flash drive
   all USB flash drives in our company are regular channels, with chips above Level A +. It is not a fake black disk or an expansion. Welcome to supervise. In addition, our company only makes good quality goods and never makes fake goods. Please know. As for the capacity of U disk, we do it according to the standard of licensed goods. For example, 8g actually has about 7.45g, instead of 7.9g or 8g for fake goods.
2. About the price of USB flash drive
  99% of the products of our company are first-hand sources, which is also the first-hand Price. Some customers still think the price is high, which is normal. We need to find a comparison standard for the price level, if we compare the price with those who make fake goods, we are sure that the price is much higher. Of course, we never make fake products. Different products and brands are not comparable. If we blindly get into the price war, we can't make money! The price of our USB flash drive is unified across the network, and it is forbidden to send low prices!
3. Service of USB flash drive
    all USB flash drives of our company are guaranteed for one year and five years. The customers we need are long-term partners, long-term cooperation, long-term warranty and long-term after-sales. We have a series of quality products waiting for everyone to cooperate. After receiving the goods, please be sure to order the quantity clearly and come to Alibaba in time to confirm the receipt and give five-star praise. Thank you for your support and understanding.