I'd forgotten about the Audigy RX. It does look very similar in appearance to the old X-Fi cards. It's a got an odd configuration for the 7.1 output though.
7.1 is eight channels; normally these are spread over four jacks/sockets, with each having two channels. This card though has the eight channels spread over three sockets, rather than four; meaning that there are two of the sockets with three channels, and two channels on the third.
There are two microphone inputs and a separate line input. Such a layout suggests it's card more designed for music production use. It's got an E-MU processor, which also points towards that.
Someone mentions the odd 7.1 output configuration in a user review on the jungle site, and that a standard 7.1 configuration can't be connected. It could be if they included an adaptor cable set, but that guy's comment suggests it doesn't come with one.