1GB 2GB 4GB 8GB 16GB 32GB USB 2.0 3.0 Rotating Flash Drive Stick Drives Thumb Disk Custom Logo USB Flash Drives About capacity: 128MB=approximately 115.2MB-119.04MB 256MB=approximately 230.4MB-238.08MB 512M B=approximately 460.8 MB -476.16 MB 1GB=approximately 0.92GB-0.97GB 2GB=approximately 1.7GB-1.85GB 4GB = about 3.5gb-3.7gb 8GB = about 7.4gb-7.8gb 16GB=approximately 14GB-15GB 32GB=approximately 28GB-30GB 64GB=approximately 58GB-59GB 128GB=approximately 115.2GB-119.04GB For LOGO:100PCS Free Custom LOGO