Note:
(1) 100% brand new.
(2) 100% real capacity.
(3) 100% one year warranty.
(4) 100% QC testing passedbefore shipping.
(5) 1TB/2TB price are too high, if you need 1TB/2TB, please contact us to double check price. Thank you.

1.Why is that the USB flash drive actual storage capacity slightly less than the product specification?

All storage product will display a lower than stated memory capacity when they are viewed on a computer. The reason for this discrepancy is the way in which manufacturers calculate a megabyte of memory.
32GB = 32,000,000,000 Bytes
1024Byte = 1K
32,000,000,000/1024 = 31,250,000 KB
1024KB= 1MB
31,250,000/1024 =30,517.57 MB
1024MB= 1GB
30,517.57 /1024 =29.8 GB
Therefore, the capacity of USB flash drive x 0.93 =Windows shown capacity.

2.How do i know my USB flash drive correctly insert into USB port ?

Please make sure your device mental of connector be correctly inserted into meddle of plastic. If your computer still cant detect your device, please reverse the connector and insert it again.
If your computer detects your device, the first time driver installation process will be shown in the right corner of screen. If your computer device autorun function is enabled, the dialog window will show on the screen. Then you can choose which method you want to open your device. You also can use device manager to check your device status.

3.How can I safety remove my USB Flash drive in Windows operation systems?

The following steps will tell you how to safety remove your USB flash drive:
(1)Find the green arrow icon in the right corner of screen
(2)Right-click on the icon, and select safety remove hardware
(3)Select the USB flash drive you want to remove, mostly it shows with usb mass storage device, then select the usb mass storage after the massage dialog comes out.
(4)Click ok.
(5)Safety remove message will appear immediately in the right corner of screen.
(6)Now can remove your USB flash drive from the USB port.

4.USB flash drive was correctly recognized by my computer,but is does not appear in My Computer,how do I access my flash drive ?

It may that another device was assigned with the same drive letter, because drive conflict. If you want to solve this problem, please follow the instructions below to reassign USB Flash drive initial.
(1)Click Windows start icon.
(2)Select run.
(3)Enter diskmgmt.msc and click on the ok to open disk manager. (4)Right-click on USB flash drive, then select change drive letter and paths.
(5)Click on the edit.
(6)Reassign the drive letter to another one that is not used by another device.
(7)Click on the ok to save your settings.

5.How to prevent files from being damaged or lost from the USB flash drive?

(1)We strongly recommend you to connect your USB flash drive to the rear side USB ports on your computer, and please avoid using an USB hub or extension cable.
(2)Please do not use several USB devices at the same time to avoid the possibility of insufficient power supply.
(3)Please make sure you use the safety remove option whenever you would like to disconnect USB Flash drive from your computer. You can refer to question 12 perform safety remove

6.Why my USB flash drive transfer rate could not reach the speed you claim?

Pretec USB flash drive is following the industrial standard to test the transfer rate. Our test is under the standard of simplest condition and general accepted benchmark.
In the case of usual transfer, the speed will be limited by related hardware and software to reach the expected speed. These factors include:
(1)Motherboard (Driver, Firmware)
(2)The number and format of transferring data Operating System (Version)
(3)Related hardware ( i.e. USB cable, memory and so on)
All of these factors would be slowing down the transfer speed.

7.Whats different between USB3.0 & USB2.0?

1.The items will be ship out soon when received a verified payment. We are not responsible for any wrong or undeliverable address.

2.Please verify with your customs before purchase. Import duties, taxes and charges are not included inthe item price or shipping charges. These charges are the buyer`s responsibility. Please check with yourcountry`s customs office to determine what these additional costs will be prior to bidding/buying.

3.It usually takes around 4 to 8 working days by express, and 15-50 working days by China Airmail to shipto your countries.

4.PS: If the item will be shipped by registered air mail, it takes 7-30 business days (1-3 weeks) for deliverydepending on your location. Most of the items will be delivered in 2 weeks, while some may take up to 6weeks, this is normal.- If you want to got the products quickly, Please choose way of shipment by DHL,UPS, FEDEX or EMS.

1.When you receive the item and satisfied with the product,Please leave positive feedback and 5 stars,we will be highly appreciated .

2.If you have any problems with our items or services, please feel free to contact us first before you leave negative feedback. We will do our best to solve any problems and provide you with the best customer services.

1.We are willing to establish cooperation with sellers around the world , we provide inexpensive products. At the same time provide the best service for everyone. We not only sell products, but more importantly is the service. If you have any problems, please feel free to contact We are always to serve you.

2.Our working time: AM8:00-PM11:00 (China Beijing time)

3.All your inquiries will be answered in 1 hours. ( Except in exceptional circumstances )

4.And our office is closed on Sunday and public holidays (Hong Kong), We apologize for the late reply during the holidays.