There are two versions of the XtremeGamer. The half-height version is a shrunken down version of the original XtremeMusic minus a couple of features (such as support for the digital I/O dongle) and has color coded 3.5mm jacks. The half-height also uses a smaller opamp package than the XtremeMusic, which means no opamp modding. However, the full height XtremeGamer has all the features of the XtremeMusic except it no longer requires a dongle for digital output, thus making it a more desirable card. From the looks of it, the full height XtremeGamer CAN be modded.