Netac U335S USB 3.0 High Speed Antivirus Write Protection USB Flash Drives U Disk, 128GB1. Plug and play, easy to use 2. Hardware write protection switch to prevent viruses and be safer 3. Use USB 3. 0 port, faster speed, faster file transfer speed, no need to wait 4. Used for file sharing, data transmission, video and music playback, picture and video storage 5. Small size, easy to carry Specification: Package Weight One Package Weight 0. 03kgs 0. 06lb One Package Size 13cm * 11cm * 2cm 5. 12inch * 4. 33inch * 0. 79inch Qty per Carton