Ricoh PJ WX3231N Video Projectors HDMI Terminal: Present high-definition movies and animations for greater impact from DVD and Blu-Ray players. USB Terminal: Use a USB memory device and eliminate the need to connect to a PC. 10/100Base-T Ethernet Interface: Connect to a local area network (LAN) for remote setup, monitoring and presentations from wired or wirelessly-connected PCs. Audio In/Audio Out Terminals: Receive audio input signals from external sources -including DVD players -when a separate channel for sound is required. With the Audio Out Terminal, you can connect external speakers for stereo and to increase volume. S-Video Terminal: Project images from DVDs, camcorders, VCRs and more that use S-Video signals.