USB Stick of Dahua that has a capacity of 16GB. Assuming that the average size for a photo, an MP3, and a Video is 2MB, 4MB, and 500MB respectively, then this USB can store approximately up to 7,500 photos, or 4,000 MP3s, or 30 Videos.
Its interface is USB 3.1. It has faster data transfer speed (10 Gbit/s) than previous versions when connected to a USB 3.1 port. It is also compatible with older versions. (Also referred to as USB 3.1 Gen 2 / 3.2 Gen 2.)