Appacs USB Flash Memory Stick 16GB1. Visual design2.Metalic surface3.Original Flash Chip4.Interface: USB2.05.Specifications:Reading Speed: 10MB/s+6.2 years limited warranty7.About capacity:1GB=approximately 0.92GB-0.97GB2GB=approximately 1.7GB-1.85GB4GB=approximately 3.5GB-3.7GB8GB=approximately 7.4GB-7.8GB16GB=approximately 14GB-15GB32GB=approximately 28GB-30GB64GB=approximately 58GB-59GB128GB=approximately 115GB-120GB