Capacity(real capacity): 4GB/8GB/16GB/32GB/64GB 100% Brand New Ultra high speed Read & Write featureUSB 2.0 Hot Plug & Play CompatibleNo external power is required DO NOT pull out when copy files， because it is easy to damage， or reduce the use of time. ?Interface: USB2.0 ?USB Service Voltage: 4.5V-5.5V ?Environment Temperature: -40��C - +70��C ?Storage Temperature: -50��C - +80��C ?Storage Lifetime: More than 10 years ?Operating System: Win98/ME/2000/XP/Vista/7. ?Convenient to carry ?Easy to read and read in high speed ?No need drive， only plug in ?No need power supply ?Support USB ZIP/HDD startup ?Small style and fashionable ?Shock resistance， damp proof， lighting resistance， antimagnetic ?Can endure impact and knock of 3 meters fall ?Use A-class chip， can be erased repeatedly for 100，0000 times ?Compatible with PC， notebook， MAC Supports Windows 98 / Me / 2000 / XP / Vista， Mac OS 9.0， Linux 2.4 and aboveCompatible with USB 1.1/2.0Extreme light weight， compact and durable for easier storage and usePackage includes:1x USB Flash Drive