With a 0.46:1 throw ratio, the PT-TW341RU Short Throw 3LCD Multimedia Projector from Panasonic is designed for classrooms and other installations where it will be placed very close to the screen, optimally less than 40". It features an interactive feature that - when connected to a computer - allows you to annotate on screen using two supplied pens. Driving the picture is a three-LCD imaging device that renders a native resolution of 1280 x 800 (WXGA) and a native aspect ratio of 16:10. Through built-in scaling the projector can also support non-native resolutions up to 1920 x 1200 (WUXGA) for computer sources and 1920 x 1080 at 60 fps for HDTV sources.
Multiple inputs allow the projector to receive video from devices ranging from document cameras, computers, DVD and Blu-ray Disc players, media players, and more. There is an HDMI port with HDMI Deep Color (30-bit) support and a VGA input that - using separately available adapters - can accept component and S-video signals as well as RGB computer signals - for component a third-party cable can be used, while for S-video specifically the ET-ADSV adapter must be used. A second VGA port can either serve as another RGB input or can be set to loop-out the signal received by the VGA input. For legacy analog video sources such as VCRs there is a dedicated composite input. There are two analog audio inputs, one on dual RCA that is paired with the composite input and one on 3.5mm mini jack for the VGA inputs. For audio output there is a 10 watt mono speaker, plus a 3.5mm mini jack output for amplified speakers or connecting to a sound system.
The projector features dual USB 2.0 ports. A type A female for giving PC-less presentations from a flash drive or other USB storage device. Plus a type B female that provides an alternative way of connecting the projector to a computer - ideal where the computer lacks an available monitor output. For centralized control and maintenance there is an RS-232 port as well as an Ethernet port with PJLink support.