[Instant expansion and instant shooting]: In-line design, instantly expand the capacity of mobile devices, provide additional storage capacity for the iPhone, and a simple and easy-to-use exclusive app. Photos and videos can be saved directly to the U disk for easy reading. It won't be embarrassed because of insufficient memory.[Yao Yuxin sees the texture]: It is made of pearl nickel technology, finely crafted, made of zinc alloy material, sturdy and durable, metal-specific matte matte effect, highlighting the fashion personality.[Storage is more stable]: Select the international brand high-quality performance FLASH chip read times up to 10,000 times to tell, security, compatibility.[Password Protection Fingerprint Unlocking]: Set the password through the APP to encrypt the U disk. Protect important information and personal privacy in the U disk safely and reliably, without worrying about leakage.[USB high-speed transmission, stable and efficient]: USB high-speed transmission interface, original stable memory chip, safe and efficient.Material: Metal,Size: 58mm*10mm*16mm,Weight: 25g,working state current: 100mA,Waiting state current: 30mA,Working temperature: 0C+70C,Write speed: 10-20M/S,write protection switch: support,Interface: USB 3.0/USB 2.0,Reading speed: 20-40M/s,Working voltage: 4.75V-5.25VApplicable system: Windows 10/8/7/XP/Vista/XP/2000, Mac OS 9.x/X, Linux2.4.x and above operating systems,Storage temperature: -30 C -55 C.