DisplayPort 2.1 is the newest iteration and a major improvement to the widely used DP 1.4 by supporting triple the total bandwidth. This enables higher refresh rates, resolutions, and color.
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What is DisplayPort 2.1?
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Paugge VESA Certified 1.2m DP 2.1 Displayport Cable – ENTDP2112 – Paugge
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HDMI 2.1 Vs. DisplayPort 1.4: Comparing Unknown Facts - uni
Silkland VESA Certified DisplayPort 2.1 Cable, DP 2.0 Cable 3.3FT [16K@60Hz, 8K@120Hz, 4K@240Hz ] 80Gbps HDR, HDCP DSC 1.2a, Display Port 2.1 Cord Compatible FreeSync G-Sync Gaming Monitor : Electronics
DisplayPort 1.4 vs HDMI 2.1
DisplayPort 1.4 vs. HDMI 2.1: Which is Better for Gaming?