Jaster | TYPE-C 2 IN 1 USB 3.0 Flash Drive 128GB 32GB Memory Stick 64GB 16GB Wedding Gift Pen Drive 8G Silver Plastic USB Stick Pendrive

FEATURE:* Durable data storage: 4GB/8GB/16GB/32GB/64GB/128GB.USB 3.0 high-speed data transfer performance.Plug and play: No need drive/power supply only plug in. A-class chip: Can be erased repeatedly for 100,0000 times. Support Windows computer systems,Can not support Mac system.* Writing speed: 10-20Mb/s , Reading speed: 40-70Mb/s.The rate of performance depends on the different operation system available and various flash adopted, so the speed maybe different.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 MBSo there are some differences between display capacity and nominal capacity of flash memory products.