Product Description: PCIe 5.1 Channel Sound Card with CMI8738 Chip and CD Accessories Immersive 3D Positional Audio: Experience three-dimensional positional audio based on HRTF technology. This sound card supports DirectSound 3D, EAX, and A3D interfaces, providing a rich and immersive audio experience. It supports multi-speaker output for 4 or 6 speakers, conforming to Microsoft PC99 specification Wavetable standards. High-Fidelity Audio Performance: Utilizing a 32-bit PCI Express x1 slot bus master, this sound card delivers exceptional audio fidelity. Enjoy a true digital audio cinema experience with support for 4 and 6 channel outputs, bringing your movies and games to life with crystal-clear sound. Enhanced Audiovisual Experience: Personalize your Internet audiovisual experience with EAX audio technology and surround sound capabilities. Enjoy convincing three-dimensional sound and 4-channel audio across multiple speaker series, enhancing your entertainment with dynamic and realistic soundscapes. Broad Compatibility: Fully compatible with Sound Blaster, Pro Sound Blaster, and DirectSound, this sound card ensures seamless integration with a wide range of audio applications and devices. Enjoy the flexibility and convenience of a sound card that works with your existing setup. Versatile Input Support: The sound card supports various input options, including SPK1, SPK2, SPK3, line input, and microphone input. This versatility allows you to connect multiple audio sources and devices, making it an ideal choice for both personal and professional audio setups. Upgrade your audio experience with the PCIe 5.1 Channel Sound Card featuring the CMI8738 Chip. Whether you're gaming, watching movies, or listening to music, this sound card provides the high-quality audio performance and versatility you need for an exceptional auditory experience.