4 Pack, new. VIDEO RESOLUTION: Up to 8K (7680×4320) plus 4K Ultra HD (3840×2160 @ 60Hz); Dynamic HDR and 3DAUDIO: Crystal clear audio pass-through for uncompressed digital 7.1, 5.1 or 2 channel sound; up to 1536kHz audio sample frequencySUPPORTS: High bandwidth HBR3, 32.4 Gbps bandwidth, DSC 1.2 display stream compression, FEC forward error correction, and 32 audio channels Fast US shipping 30-day warranty.