Dock extenders (female-to-male, NOT USB) - any that carry ALL signals?

i want put 30-pin dock extender cable on apple hdmi adapter, heavy, non-flexible hdmi adapter—and 2 cords connected it—aren’t hanging off ipad directly (taking strain , pulling loose).

not normal usb ipad cable; male-to-female cable this; in between ipad , hdmi adapter:


however, extender cables have tried (qvs , xtreme) fail connect hdmi video signals. work charging , synching, , maybe audio (like connect ipad iphone speaker dock). not video. ipad doesn’t detect hdmi connected.

i’m guessing saved cost not connecting 30 pins.

can recommend dock extender cable connects signals? in advance!

can see strain i’m trying avoid—the apple adapter have near flexible shown here, , pull loose in real life, thick hdmi cable hanging off it:

 

get appletv, , mirror wirelessly.

 

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