this is an external vga to av signal converter allows the vga signal from pc convert it to high quality and excellent image quality displayed on tv screen. easy to use, plug and play, no software or driver required, auto switch pal/ntsc. huge application such as school/classroom e-education - present class notes or presentation your work from laptop to tv screen, projector, dvd/vcd/game/vod/ktv from pc and shown on big screen tv, interactive network conference system, video output to vcr recorder for software editing picture/power-point, business training and presentation etc. product features: ? supports composite video, s-video, rgb. ? power from ps/2 or usb port. ? on screen display (osd) operation status, zoom, size. ? independent horizontal size and vertical size adjustment ? pure hardware design, just plug & play no software or driver requirement, compatible with any operation system. ? switchable ntsc, ntsc-eiaj (for japan), pal, pal-m, pal-n, pal-combination-n ? supports position control, zoom & menu button. ? menu button supports hsize, vsize, brightness, contrast, hue,saturation, sharpness and osd9. background color adjustment. ? simultaneous display on vga monitor and tv. ? compact small case : 98mm(l)x58mm(w)x32mm(h)12. 24 bit, true color digitizer. imput: 1.15-pin vga analog rgb signal 2.multiple input frequencies (1) 640x480 at 60-85 hz (2) 800x600 at60-75 hz (3) 1024x768 at 60-75 hz output 1. s-video (s-vhs) 2. vga bypass 3. composite (rca) application: 1. school/classroom e-education 2. dvd/vcd/game/vod/ktv from pc and shown on big screen tv 3. interactive network conference system 4. video output to vcr recorder for software editing picture/power-point 5. business training and presentation box content: av cable x1 vga cable x1 power cable x 1 user manual x1 converter x1 shenzhen lenkeng technology co., ltd has hi-technology on video converter and self r&d ability. sony company, shanda interactive entertainment limited (nasdaq: snda), china hebei netcom company. china netcome company, shenzhen subway engineering etc famouse company order video converter from us for we have quality and price comeptition. catherine4531 at hotmail.com skype:catherine4531 qq:446310068 86-755-82501733