The Sound Blaster ZxR is the flagship of the ultra high-performance Z-Series of Sound Blaster PCI-Express sound cards, elevating the standards of technology and performance for the future of gaming and entertainment on the PC. Designed to deliver the ultimate audio playback and creation solution for the PC, Sound Blaster ZxR personifies the ultimate gaming and entertainment performance for a sound card. A signal to noise ratio or SNR of 124dB means your audio will be more than 99.99% pristine, which is over 89.1 times better than motherboard audio. In gaming, if you're not communicating, you're not winning. Experience crystal clear communication with your teammates with the CrystalVoice suite of technologies that removes echoes, ambient noises and picks up your voice from within a zone (Voice Focus). It also maintains your voice level even if you are near or further away from the microphone. Add studio quality audio sound tracks or voice tracks to your video clips or home videos created with hardware that uses only audiophile-grade components such as 123dB analog-to-digital converters (ADCs) with RCA Aux-in and optical inputs for outstanding recording quality. With the 600 ohm headphone ampflier, you can do studio-grade monitoring as well. The DBpro is another reason why Sound Blaster ZxR delivers only the best audio playback and creation. It offers optical output for outstanding audio playback, plus professional-grade ADCs with RCA Aux-in and optical inputs for studio-grade recording quality.