Extremely low-loss data transmission. It wont be a bottleneck in your system for current latest 4K@60Hz, HDR, Dolby Vision, HDCP 2.2, up to 18Gbps bandwidth.; Comprehensive zinc alloy housing ensures resist to strong EMI and RFI interference.; High precision manufacturing connectors (gold plated), fit your devices port and HDMI cable connector perfectly, which giving you a firm connection.; PCB inside. Clean layout of circuit, and machine manufacturing ensures precise and solid assembling.; One adapter only (FLAT-90NU/L). Other 3 orientations are sold seperately.