Item Type: Portable Memory Stick_x000D_ Material: Aluminum alloy + ABS_x000D_ Interface Type: USB 2.0, MicroUSB_x000D_ Maximum Writing Speed: 4MB/S_x000D_ Maximum Reading Speed: 12MB/S1U disk is a 2?in?1 micro USB and USB 2.0 interface connector, compatible with all micro USB smartphones and tablets with micro USB function. 2As an extra storage space for mobile devices, store photos, music, videos and other files. 3The USB flah drive is USB2.0 and Micro USB interface, USB2.0 ensures high reading and writing speed, plug and play, no driver installation required. 4Data is stored in a particularly secure way, shockproof, antimagnetic and dustproof. 5This OTG USB memory stick is small in size, light in weight, portable and practical.1 x U Disk