RUIPRO 8K DP to HDMI 2.1 Detachable Fiber Optic Module, 4K@144Hz HDR10

I bought the 3-metre version of this RUIPRO DP to HDMI 2.1 module kit out of absolute necessity after the native HDMI 2.1 port on my RTX 4090 broke. I was highly skeptical about whether an active conversion cable could actually handle the extreme bandwidth needed for my gaming setup, but it has completely blown me away.I am running this from my RTX 4090 into a 115-inch Samsung QN90F Neo QLED TV. Active adapters are notorious for choking on advanced features, but after setting this up correctly, it works flawlessly.My Windows advanced telemetry officially confirms:True native 4K resolution running at a locked 144Hz.Full uncompressed 10-bit color space (RGB format).Full 4,000-nit Peak Brightness HDR metadata passing perfectly.Full Dolby Atmos audio routing through the TV's eARC loop back to my AV receiver and KEF speakers.CRUCIAL TIP FOR FUTURE BUYERS:If you experience any occasional screen tearing or washed-out colors when you first plug it in, do not blame the cable! You just need to dial in your PC settings because active chips handle data differently.To make it run perfectly with zero issues:In the NVIDIA Control Panel, manually force G-Sync on by checking the box for "Enable settings for the selected display model."Set a global Max Frame Rate cap to 141 FPS and turn Vertical Sync ON in the global NVIDIA settings. This permanently eliminates all screen tearing.Under "Adjust desktop size and position," force the scaling to be performed on the GPU rather than the Display, and check the override box. This stops games from black-screening or crashing the signal on launch.If the HDR looks faded on your desktop, adjust the Windows SDR content brightness slider up to around 60–75% and manually toggle your Samsung TV's HDMI Black Level to "Low". The rich, deep blacks and punchy colors instantly return.The cable build quality is phenomenal, the detachable module heads made routing it a breeze, and the external USB power injectors keep the fiber optic signal completely stable. It saved me a £ hardware repair bill and delivers a zero-compromise, elite-tier experience. Exceptional product.