The USB Gigaport AG,  PC to Audio, 8 channels of RCA Analog outputs. 
Use the Gigaport AG to easily separate the MP3 players in PCDJ Red or Blue so you can interface directly with lines 1 & 2 on any external mixer using standard RCA cables! GigaPort is the future. And of course, keeping with tradition, ESI delivers the future now. Not just another USB peripheral, GigaPort is the first of its kind, offering eight channels of audio output to either a single ADAT Lightpipe interface or eight individual analog outputs. The versatility of USB means that now you can have a viable high quality audio connection going out of your laptop or any USB compatible computer to the destination of your choice. And since GigaPort supports ASIO 2.0, GigaPort is compatible with both Mac and PC. .

Pick Your Favorite Flavor!
The GigaPort DG with its ADAT digital connector is the world's first USB to ADAT optical interface. GigaPort DG is perfect for transferring files or mixing direct to ADAT or any piece of equipment that supports the ADAT optical interface. On the other hand, GigaPort AG is equipped with eight RCA analog outputs which make the possibilities endless. With eight high quality outputs, you could be mixing directly to DVD, transferring files, or just kicking back listening to your favorite DVDs straight out of your laptop in full 5.1 surround.

Made for Surround! The GigaPort offers full compatibility with Dolby Digital 5.1 and DTS 5.1 surround formats and is ready to support DTS ES 6.1, and 7.1 new surround formats. GigaPort transforms your laptop into a full-blown 5.1 home theater system.

GIGAPort AG Technical specifications:

• 8 x RCA Analog Output(8 x 24 bit D/A Converter),
• SPDIF Optical Output
• ASIO2.0 driver Mac & PC One Headphone Out
• WDM driver for Windows XP/2000/ME/98SE
• Expansion Connector for additional Digital Audio and MIDI interface(MI/ODI/O)*