RF-51SDCD-5-1-Channel-PCI-Sound-Card What's Included: * Rocketfish 5.1-Channel PCI Sound Card * Software CD-ROM * Owner's manual 3D surround sound gaming with EAX support To bring your games to life. 24-bit multichannel performance/96kHz stereo For both playback and recording. Supports 2-, 4- and 5.1-channel output To best fit your system's needs. Optical out Supports stereo S/PDIF out and pass-through of multichannel DVD sound.