This USB to HD Adapter enables you to enjoy multiple displays at the same time with sync output of audio and video. And you can choose to mirror or extend your screen. Feature:Multiple DisplaysWith the adapter and cables connecting with 3 devices, it enables you to mirror or extend your screen on 2 monitors with the resolution up to 1080P60Hz. 2 Modes, Switch at EaseThere are two modes for choices, with the mirroring mode enabling you to mirror your minor screen to a major one while the extending one enabling you to work and play at the same time. Sync Output Audio & VideoIt supports sync output of audio and video, but when using 3.5mm audio port to output audio, OUTA and OUTB will not output audio.Support Audio OutIt equips with 3.5mm audio port, you can output the audio to your headset or speaker.Wide CompatibilityIt is compatible with Windows 7, 8, 8.1, 10, XP(32bit), Vista(32bit), mac OS, Chrome OS.Note:The HD cable should not be longer than 5 meters. When you use WIN10 system, you can only mirror to one screen at one time.Specification:USB cable length: 50 cm USB interface: USB TYPE-A USB version: USB2.0, USB3.0 Output resolution: 1920x1080@60Hz Output cable distance: ≤5m (AWG26 standard HDMI1.4 cable) Working temperature: (- 15 to + 55 ° C) Operating humidity: to 90% RH (non-condensing) Item size: 83.4* 58.7* 23 .9mm/ 3.28* 2.31* 0.94in Item weight: 59g/ 2.08in Packing list:1 * USB to HD Adapter1 * User manual