HD Home Theater Setup: HDMI vs Optical, 5.1 vs 7.1, and everything else | Scottie's Tech.Info
ASUS Xonar-Phoebus, 7.1 Channel Audio Card with PCIex interface, 118dB In/Out SNR, 110 dB SNR/ Headphone Amp card for Audiophiles, High-definition audio processing at 192KHz/24Bit, 5 x 3.5mm RCA jack output -
5.1/7.1 channel support from standard 3 audio jack output motherboard - CPUs, Motherboards, and Memory - Linus Tech Tips