Standard: HD/SD SDI x 4. Video: Standard: HD/SD SDI x 4 (PGM x 2, 2 outputs assigning PGM, PVW, AUX, MultiPVW, KEYOUT). Panasonic AV-HS400 (AVHS400) compact multi-format HD-SDI / SD-SDI Digital Vision Mixer with multi-screen preview.
eBay