Description : For this external USB sound card, no drivers are needed when you use it together with the following operating systems Windows98 / SE / ME / 2000 / XP / Server 2003 / Vista and Linux. Just simply connect headphones or speakers, you can enjoy the wonderful music immediately!Specifications :Name : External USB Sound CardInterface : USBApplicable Equipment : ComputerProduct Material: Aluminum Alloy Product Function : Sound CardProduct Length: 7*2.6*1 cm (small and portable)Available Colors : Black Gold Grey SilverProduct Weight : 25 gFeatures : 1.【Great Compatibility】2.【Free Drive】： For this external USB sound card, the chip of CM100B is adopted. For some operating systems, no drivers are needed. But can be installed with drivers to obtain stronger functions, with sound effect settings and sound field settings.3.【Wonderful Function】： A USB 2.0 pure digital sound output and virtual 7.1 channel processing capability(actually 2.1 channel). Similar to the HD sound card integrated on the motherboard.4.【High Performance】： This external USB sound card is complied with the specifications of 1.0 USB audio device.5.【Small and Portable】Package List :External USB Sound Card *1