It’s available in three formats, including one with standard audio (S2L), one with 8-channel definition audio (S2), and the premier one with HD audio, full-rate lossless blu-ray audio, and an HDMI interface (S2H). Featured among all are four SATA II slots, PCI Express x4 and x16 slots that are compatible with x1 cards, USB 2.0, FireWire, and support for a CrossFire configuration. It’s similar to the GA-G33M-DS2R, except that it’s better geared for users seeking integrated HD audio.