I use them as stubs for my mining rig and 3060 graphics cards. I run several of these with no problems and can mine at full hash rate.
Portable battery with wireless charging support COMMO Magnetic Power Bank, 4 600 mAh, graphite
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Ultimate Compatibility: USB C to HDMI Adapter for MacBook, iPad, Dell, Surface & More
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π΄ 2 Pack JSAUX HDMI Coupler Female to Female for 4K HDR Extension - Aluminum Alloy Adapter for HDTV, Roku Stick, Computer, Monitor, Laptop, Projector, DVD Player, PS 4/3 (Red)
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Cable Baseus Cafule USB - Lightning, 1 m, black/red
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