Richwell 3 in 1 16G Type-C + Micro USB + USB 3.0 Metal Flash Disk with OTG Function 1. 3 in 1 (Type-C, 8 Pin , USB 3.0 )Flash Drive 2. Installation: External 3. Material: Metal 4.Equipped with USB2.0 adapter. 5.Support manage Data directly on the FlashDrive. (Create, copy, move,delete, rename, open and so on). 6.Format support:common image format,such as MP3, MP4, Mov, MPEG-4, flv, RM, RMVB and other video and audio format.Maximum support 1080P.mp4 video format. 7. System: support all android phones with OTG function and laptops or desktops with USB port About real capacity Capacity flash memory products are usually shipped in accordance with 1MB = 1000KB, 1G = 1000MB computing, but the operating system using binary arithmetic 1MB = 1024KB, 1GB = 1024MB, so there are some differences between the display capacity and standard capacity memory products.This is calculation difference between manufacturer and our PC 8GB =approximately 7.2GB-7.5GB 16GB=approximately 14GB-15GB 32GB=approximately 28GB-30GB 64GB=approximately 58GB-59GB 128GB=approximately 115GB-120GB