what version display port cable is this? is it a 2.1?

Dear harlan newson Thank you for contacting us regarding the product version. We are pleased to confirm that the item in question is Version 1.4. Should you require any further assistance, please do not hesitate to reach out.

Questions & Answers: 8K DisplayPort to DisplayPort Cable, Computer Monitor Cable 3.3 ft, 8K@60Hz, 4K@120Hz, Display Cable, Male to Male Display Port Cable, Gold-Plated DP to DP Cable

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8K DisplayPort to DisplayPort Cable, Computer Monitor Cable 3.3 ft, 8K@60Hz, 4K@120Hz, Display Cable, Male to Male Display Port Cable, Gold-Plated DP to DP Cable

Bidirectional DisplayPort to DisplayPort Cable(NOT HDMI, NOT DVI) . Connect a DisplayPort compatible PC to a monitor or projector with DisplayPort. Or Connect a DisplayPort compatabile PC and laptop to a monitor with Displayport.
Transmits HD audio and video from your computer to a monitor for video streaming or gaming; Connect and configure your monitor for an Extended Desktop or Mirrored Displays
Supports video resolutions up to UHD 8K (7680×4320)@60Hz and offers a refresh rate of up to 240Hz under 2K (2560*1440) resolution, and flawless audio pass-thru for uncompressed digital 7.1, 5.1 or 2 channels. The DisplayPort to DisplayPort cable also supports DP, DP++, and DisplayPort++.
Gold-plated connectors, bare copper conductors, and foil & braid shielding combine together to provide both superior cable performance and reliable connectivity.

$11^.59 –