1 pcs USB Flash Drive<br /><br />Products description:<br />storage capacity: 8GB 16GB 32GB 64GB<br />Interface: USB 2.0<br />Environment Temperature: -40&deg;C - +70&deg;C<br />Storage Temperature: -50&deg;C - +80&deg;C<br />USB Service Voltage: 4.5V-5.5V<br />Storage Lifetime: More than 10 years<br />Use A-class chip・ can be erased repeatedly for 100・0000 times<br />Operating System: Win98/ME/2000/XP/ Vista/win7 /win8・ Mac OS 9.X/Linux2.4 or above<br />USB connection・support Hot plug & Play.<br />Easy to read and read in high speed ・No need drive/power supply only plug in<br />For Valued Customers・<br /><br /> <br /><br />1.what is the write speed?t<br /><br />our USB flash drive write speed is 5M/S -- 10M/S or you will lucky to get 11M+.t<br /><br />if you want to save 1GB film in our USB flash drive・that you need the time is 2 mins・it save your time.t<br /><br />2.Why the USB flash drive real capacity is not correct capacity?t<br /><br />Flash memory vendors are using decimal arithmetic:1MB = 1000KB・1G = 1000MB<br /><br />calculated・ the operating system using binary arithmetic:1MB = 1024KB・1GB = 1024MB;t<br /><br />so there are some differences between display capacity and nominal capacity of flash memory productt<br /><br />4G is about 3.6G;t<br /><br />8G is about 7.2G ;t<br /><br />16G is about 14.4G ;t<br /><br />32G is about 28.8G;t<br /><br />64G is about 57.75g;t