1. Above 8 digit PCM digital video program, 2. SMT appearance, 3. Compatible with PAL,NTSC,SECAM. Main features:Above 8 digit PCM digital video program and non compassion video transportationSupport all high resolution video signal Auto compatible with PAL,NTSC,SECAM video systemSMT appearanceNo electromagnetic, RF and natural current interferenceKM fiber optics transportation, large capacity, ...