SABRENT USB External Stereo Sound Adapter for Windows and Mac. + Premium 3 Port Aluminum Mini USB 3.0 Hub Description: This Sabrient AU MMSA 2.1 audio sound card adapter is a highly flexible audio interface, which can be used with either laptop or desktop system. No driver required, plug and play for instant audio playing and compliant with all mainstream operation systems. Simply plug the sound adapter into your USB port, and then plug your headphones into the adapter. Features: No external power required. System requirements mac OS 8.6 or above what's in the box? Information: 1 Year limited . When you register your new SABRENT USB External Stereo Sound Adapter for Windows and Mac. + Premium 3 Port Aluminum Mini USB 3.0 Hub product online within 90 days of purchase, your standard 1 year coverage is extended to 2 years. Material Plastic. Easily add up to three devices with the SABRENT USB External Stereo Sound Adapter for Windows and Mac. + Premium 3 Port Aluminum Mini USB 3.0 Hub USB 3.0 rotatable hub. Effective for all computers and laptops and particularly those that come with a limited number of ports. Avoid interchanging your USB devices and having to decide between synchronizing your phone or working with your external hard drive. By utilizing the SABRENT USB External Stereo Sound Adapter for Windows and Mac. + Premium 3 Port Aluminum Mini USB 3.0 Hub USB 3.0 rotatable hub, you can employ all of your devices at once. Features: sleek style design, ideal for Mac Pro, I Mac, MacBook Air, MacBook Pro, MacBook, and Mac Mini. USB connector can be rotated 90°/180° degrees. portable, compact, lightweight design makes it travel friendly. easy setup, plug n play, hot swappable, hot Pluggable. Compatible with all Windows/Mac/Linux systems.