The gamer seeking enhanced audio performance instead of relying on their PC on-board sound will find excellent value in the GSX 300 external sound card. Paired with a gaming headset, the GSX 300 together with the EPOS Gaming Suite delivers digital sound processing and customizable 7.1 EPOS Surround Sound. An LED ring around the volume dial illuminates blue for 2.0 and red for 7.1 sound mode.The Features of EPOS | Sennheiser GSX 300 External Sound Card at a Glance:Advanced audio controlCustomizable smart button for quick mode switchCustomizable 7.1 surround sound with EPOS Gaming SuiteSynchronized with Windows 10 soundConnector plugs3.5 mm headset socket3.5 mm microphone socketMicro USBCompatible with PC2 years warrantyLevel up your game audioDesigned for the gamer seeking enhanced performance with their gaming headset, the GSX 300 external sound card boosts your audio experience to new levels. A simple to use, well-engineered addition to your gamer arsenal, instead of relying on your PC on-board sound, this is the must-have audio upgrade for your gaming setup.The proprietary EPOS Gaming Suite for Windows 10 adds audio refinement controls, customization of 7.1 surround sound and digital noise cancellation to your game. A volume dial allows quick, easy control while gaming and a smart button toggles between surround and stereo sound or between profile presets. An LED ring around the volume dial illuminates blue for 2.0 and red for 7.1 sound mode. Enjoy enhanced game audio and crisp team communication with this excellent value-for-money, external sound card and let the Power of Audio take you to new dimensions.FAQHow do I get the most out of my new GSX 300 external soundcard?We suggest you download the EPOS Software Suite from Eposaudio.com. The EPOS Software Suite turns on 7.1 Surround Sound, allows you to create different audio profiles depending on your needs, and also allows you to control background noise.What does the Smart button do?You can select what it does from within the EPOS Software Suite. As of today, you can select the functionality of switching between your audio profiles or switching between Stereo and Surround sound.Does the GSX 300 work with consoles? The soundcard was made for PC and requires the EPOS Software Suite to have all features activated. It will however work with most USB-compliant devices such as PS4 or Nintendo Switch (docked).Will the GSX 300 improve my audio quality?It all depends on your existing soundcard. If you dont have a soundcard today, you will get quite a nice up-grade to audio quality.I had 24-bit audio before installing the software suite, what happened?The EPOS Software Suite and its 7.1 processing only support 16-bit audio today. We are working on an upgrade and hope to support Hi-Res 7.1 processing soon.My GSX 300 isnt playing loud enough with my headset.The GSX 300 external soundcard was made to provide a good volume for headsets such as the GSP 300, GSP 500 and GSP 600. If you use other headsets, please make sure that the impedance (resistance) of the headset is around 50 ohms or less. Having higher impedance will impact loudness of the audio.We also suggest that you check that volume is turned all the way up on the volume control on your headset.EPOS | Sennheiser GSX 300 External Sound Card Specifications:USB StandardUSB 2.0Total Harmonic Distortion< 0.01%Cable Length1200mmConnector Plugs3.5mm headset socket3.5mm microphone socketMicro USBCompatibilityPCWarranty2 yearsInternationalMain Audio Sample Rate24 bit 96kHz7.1 @ 16 bit 48kHz with EPOS Gaming SuiteRecommended Headphone Impedance25 - 75 Dimension of product PackagingL x W x H168mm x 144mm x 57mmPackage Weight309gIncluding complete product and packagingDimension of Master CartonL x W x H350mm x 310mm x 310mmUnits in Distributor Master Carton20LanguagesEnglishGermanFrenchSpanishRussianChineseBox ContentsUSB cableQuick start guideSafety guide