Jaster | JASTER TYPE-C OTC Business Gift USB Flash Drive 128GB Mini Metal Memory Stick 64GB High Speed Pen Drive 32GB Silver USB-C 16G 8G

JASTER TYPE-C OTC Business Gift USB Flash Drive 128GB Mini Metal Memory Stick 64GB High Speed Pen Drive 32GB Silver USB-C 16G Waterproof  U Disk 8G For USB stick 4GBFeatures:● Read Speed: 10MB -18MB/second● Write Speed: 5MB -8MB/second● USB 2.0 interface with higher speed and higher stability● Portable, lightweight, high-quality metal protects the connector●Environment Temperature:  -40°C - +70°C●Storage Temperature: -50°C - +80°C●USB Service Voltage: 4.5V-5.5V●Storage Lifetime: More than 5 years●Use A-class chip, can be erased repeatedly for 100,0000 times●Operating System: Win98/ME/2000/XP/ Vista/win7 /win8, Mac OS 9.X/Linux2.4 or above●USB connection:support Hot plug & Play.●Easy to read and read in high speed ,No need drive/power supply only plug inAbout 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.