HP Reverb G2 - V2 6 meter cable. Official reseller
Tyco Tech HP Reverb G2 Halo Adapter Kit. - Etsy Sweden
I have successfully extended the HP Reverb G2's cable length to 21 meters (GERMAN, links in the description of the video) : r/HPReverb
NEW VR Headset Connecting Cable For HP Reverb G2 1 Meter 6 Meter Virtual Reality VR Glasses Upgraded version 2.0 - AliExpress
Amazon.com: Cable Matters Unidirectional Active DisplayPort Extension Cable Gender Changer for Oculus Rift S, HTC Vive Pro, Gaming Monitors and More in 10 ft / 3m - Support DisplayPort 1.4 with 8K
Successfully Extended HP Reverb G2 Cable Length by 16 feet (5 meters) : r/HPReverb
New Replacement VR Cable For HP Reverb G2 Cable HP Reverb G2 Headset (6meter) Cable Game Connector Extension Cable 6M - AliExpress
Cable management options – HP Reverb G2 Community website