| Note: Hello friend, The amount below 7USD, we default to send out by 4PX Singapore Post OM Pro. It is a very cheap shipping and post office does not provide tracking service. But please do not worry, if the default protect time is nearly over, you can contact us to extend protect time for you. If all protect time (90 days) is nearly over and you still do not receive, you can contact us to refund. thank you Please kindly do not open a dispute very early in protect time. If so, we do not advise you to buy. Warm notice: Because right now many of the fraud,has not yet on the market 64GB 128GB 256GB 512GB.Many suppliers are to use:4GB 8GB 16GB 32GB Rose to 64GB 128GB 256GB 512GB . We have a test software, please download : H2testw If you are in my store to buy, you will get the real capacity: Tips: Dear buyer, if you buy more than 50pcs, we can according to your request for free to send Express Delivery, such as DHL, EMS, UPS, Fedex. Packing: 1X USB flash drive, 1X oppo packaging bag. Capacity: Flash memory vendors are using decimal arithmetic:1G=1000MB calulated, and the operating system using binary arithmetic:1G=1024MB, So there are some differences between display capacity and nominal capacity of flash memory products. About REAL Capacity: 4GB = approximately 3.6GB-3.8GB 8GB = approximately 7.4GB-7.6GB 16GB = approximately 14GB-15GB 32GB = approximately 28GB-30GB 64GB = approximately 58GB-60GB 128GB = approximately 119GB-120GB Please Google ‘Memory card capacity’ to get more information. If you have any questions, please feel free to contact us. Products Description 1) storage capacity: 2GB/4GB/8GB/16GB/32GB 2) Interface: USB 2.0 3) Environment Temperature: -40°C – +70°C 4) Storage Temperature: -50°C – +80°C 5) USB Service Voltage: 4.5V-5.5V 6) Storage Lifetime: More than 10 years 7) Use A-class chip, can be erased repeatedly for 100,0000 times 8) Operating System: Win98/ME/2000/XP/ Vista/win7/win8 , Mac OS 9.X/Linux2.4 or above 9) USB connection,support Hot plug & Play. 10) Easy to read and read in high speed ,No need drive/power supply only plug in. Warranty 1) All the items has 3 years warranty. 2) If the item is defective use by technical reason,you could sent back to us for New one.Customers are responsible for 2-way shipping charges on any returned items. It may take up to 7 business days to process your return after we receive your product. 3) All items must be returned in their original condition, In order to qualify for a refund or exchange of goods. 4) Our warranty does not extend to any products that are physically damaged or that are not under normal operating conditions as a result of misuse or improper installation. 5) No refund accepted after 30 Days of receipt. 6) Items returned after 7 days of delivery are only eligible for repair. Feedback 1) Your Feedback is really important to us, please take a few seconds to leave great feedback if you are satisfied with our product or service, thank you so much !! 2) We always offer the lowest price for best goods and service to you. 3) Please contact us before leaving neutral or negative feedback.We will try our best to solve the problem and leave you a happy shopping mood here. Thank you! Contact us If there’s any problems or questions about you order, please contact us by Email or TradeManager, we will reply within 24 working hours.