The Elgato 4K X external capture card is the only device from the Corsair sub-brand that is able to capture 4K 144Hz footage ...
If your devices only support up to 4K at 60Hz, a "premium high-speed" HDMI cable (18Gbps, HDMI 2.0) is perfectly fine. Again, just avoid really old or thin cables. Early HDMI cables (HDMI 1.4 or older ...