Jaster | JASTER Rotatable Colorful USB 2.0 Flash Drive 128GB Creative Gift Memory Stick 64GB Silver Clip Pen Drive 32GB U Disk 16GB 8GB

Notice：This link does not provide custom logo services.Features:Read Speed: 10MB -18MB/secondWrite Speed: 5MB -8MB/secondUSB 2.0 interface with higher speed and higher stabilityEnvironment Temperature: -40°C - +70°CStorage Temperature: -50°C - +80°CUSB Service Voltage: 4.5V-5.5VUse A-class chip, can be erased repeatedly for 100,0000 timesOperating System: Win98/ME/2000/XP/ Vista/win7 /win8, Mac OS 9.X/Linux2.4 or aboveUSB connection:support Hot plug & Play.Easy to read and read in high speed ,No need drive/power supply only plug in.About capacity:4GB = approximately 3.6GB-3.9GB8GB = approximately 7.4GB-7.8GB16GB = approximately 14.2GB-15GB32GB = approximately 28GB-30GB64GB = approximately 58GB-60GB128GB = approximately 110GB-120GBVendors are using Flash memory decimal arithmetic: 1 MB = 1000KB, 1G = 1000 MBCalculated, operating system with binary arithmetic: 1 MB = 1024KB, 1 GB = 1024 MB;So there are some differences between display capacity and nominal capacity of flash memory products.