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Feature :  

1.Interface: USB3.0

2.No need drive, only plug in

3.USB Service Voltage: 4.5V- 5.5V

4.Environment Temperature: -40°C - +70°C

5.Operating System: Win98/ME/2000/XP/ Vista/7 , OS 9.X/Linux2.4

6.Compatible with USB 1.1/2.0/3.0

7.Small style and fashionable

8.Use A-class chip, be erased repeatedly for 100,0000 time

9.Using USB 2.0 interface and compatible with USB 1.1,high read and write speed,low power consumption,save the data security long

10.Plug and play,no external power supply required,perfect for keeping all of your documents, videos, music and photos hand

11. Waterproof

FAQ : Is the usb flash drive real capacity?    

Of course, All of the CHYI usb flash drive is real capacity, you can test it by H2testw which is the most authoritative testing software. For H2testw software, you can download it on internet or ask us to send you freely.

FAQ : Why the capacity of the usb drive is not correct?

Capacity flash memory products are usually decimal arithmetic: 1MB = 1000KB, 1G = 1000MB, but the operating system using binary arithmetic 1MB = 1024KB, 1GB = 1024MB, so there are some differences between the display capacity and standard capacity memory products.


1. Don\'t operate the files in the USB flash directly. It would better first copy the files to computer to operate and then copy back to USB flash after operation.

2 .To extend USB flash\'s life span, it would better to plug the USB flash drive down after operation asap.

3. Before removing the USB, please delete the symbol on the bottom right of the PC screen to avoid missing files in the dish.

4 .Please do not format the USB frequently for it may damage the USB flash

As below is the calculation difference between manufacturer and our PC:

4GB =approximately 3.5GB - 3.8GB

8GB =approximately 7.4GB - 7.85GB 

16GB=approximately 14.2GB - 15.8GB

32GB=approximately 28GB - 30GB

64GB=approximately 58GB - 60GB

1.For the Russian customers, please complete the order after the full name, or can not send the goods, Thank you for your cooperation
2.if the goods package was broken please reject

3.About Color : we take photos using Digital camera, some color of the cases will have some differences due to technical limited, hope you can understand

4. Some usb 3.0 U disk chips are black. Read and write speed is the most accurate way to distinguish usb.20 and usb 3.0

5.Not every smartphones can use this flash drive, it can be used in the smartphones that support OTG function and has Type - C interface, please ensure that before ordering, or you can also ask us if you can not make sure, thanks a lot!  

USB 3.0  Flash Drive 



1.   WORLDWIDE SHIPPING. (Except some countries and APO/FPO)   
2. Orders processed timely after the payment verification.   
3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.   
4. The images shown are not the actual item and are for your reference only.   
5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit time may vary, particularly during the holiday season.   
 6. If you have not received your orderafter 30 days from payment, please contact us. We will trace your order and get back to you asap. Our goal is customer satisfaction!   
7. Delivery Time:   
1. You have 7 days to contact us and 30 days to return it from the date received. If the item is in your possession more than 7 days, it will be considered used and WE WILL NOT ISSUEA REFUND OR REPLACEMENT to you. There are NO EXCEPTIONS!   
Shipping cost is bear by both seller and buyer in half.   
 2. All returned items MUST BE in the original packaging and you MUST PROVIDE us with the shipping tracking number, specific reason for the return, and your order ID.   
 3. We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its original condition and packaging with all components and accessories included, AFTER BOTH Buyer and Seller cancel the transaction from aliexpress. OR, you may choose to have a replacement.   
 4. We will bear all the shipping cost if the product(s) is (are) not as advertised.
1. 12 months Manufacturer’s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.   
 2. Defective items MUST BE reported and returned within the warranty period (and in the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN   
 You agree to all of the above-listed policies upon ordering on aliexpress!
We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can perform up your satisfaction.   
 It is impossible to address issues if we do not know about them!