Yoochin 10Pcs USB Flash Drive USB 2.0 Memory Stick Fold Storage Thumb Stick Pen Drive Swivel Design Multi-Color Drive Memory cle USB Stick U Disk Pen driv -512MB-

Specification:  1      Interface: USB 2.0; 2      USB connection, support hot plug&play; 3      USB service voltage: 4.5v-5.5v; 4      No external power supply requird; 5      Support different types of os;Win98 / ME/ 2000/xp/visa/win7/win8. Mac OS 9.x/ LINUX2.4 or above; 6      The solid state storage,shock proof and electromagnetic proof; 7      Write/delect protection switch; 8      Durable data storage; 9      The fast speed in write/read transfer;Easy to read and read in high speed , no need to drive/power supply just plug in. 10  Hardware requirements: PC with USB connection,notebook,mac; 11  Storage lifetime: more than 10 years;Using-class chip, can be erased repeatedly for 100,0000 times;   About the real capacity:      All USB flash drive tested by H2testw,our usb flash drive is the real capacity,you can use the H2text to text it.Capacity flash memory products are usually shipped in accordance with 1MB = 1000KB, 1G = 1000MB computing, but the operatingsystem using binary arithmetic 1MB = 1024KB, 1GB = 1024MB, so there are some differences between the display capacity and standard capacity memory products.This is calculation difference between manufacturer and our PC   4GB = approximately 3.6GB-3.8GB 8GB = approximately 7.4GB-7.6GB 16GB = approximately 14GB-15GB 32GB = approximately 28GB-30GB 64GB = approximately 58GB-60GB   This is calculation difference between manufacturer and your PC, please Google 'USB Flash Drive capacity' to get more information.