Test, troubleshoot, and verify your HDMI setups with the J-Tech Digital HDMI Test Signal Generator. Engineered for professionals and enthusiasts, it supports up to 8K@60Hz (4:2:0, 10-bit) with 40Gbps bandwidth, full HDR testing, and multiple color formats including RGB, YCbCr444, YCbCr422, and YCbCr420. Equipped with 64 video resolutions and 33 test patterns, this compact device ensures precise video signal verification for TVs, monitors, projectors, and AV receivers. Audio testing is seamless, supporting LPCM 2CH internal audio, external S/PDIF input, and HDCP 2.3/1.4 pass/fail verification. Advanced features include EDID read/write, timing, format, InfoFrame, and HDCP analysis, plus CEC control for end-to-end HDMI testing. Its portable design with a 2910mAh rechargeable battery makes it perfect for field use or lab environments.