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Ok, so you couldn't daisy-chain a bunch of 6' USB extension cords together, but something like
Works due to the repeater part?
They're not expensive at all and work just fine.
honestly just cheap ones on amazon worked just fine, i had originally done vga but it was wonky & switched to displayport (gpu) to hdmi cable (tv) i cant find the cable i got on amazon right now
used this for usb ran this cable [link] & coneceted it to this [link] make sure its externally powered & connected mouse/keyboard
I guess I'm confused - if the max usable usb length is 5m, then why do they sell 50' lengths?
Ditto for HDMI: [link]
I mean, I could probably do HDMI / USB > Ethernet > HDMI / USB connections, but it seems a bit silly if the full length cords are readily available and reasonably priced.
A decent quality HDMI cable ($30-60) should be fine at that length, but if you have trouble, you can look at Redmere or active cables. They're single direction but work well at much longer distances compared to normal cables.
USB is a little trickier. USB 2 actually tolerates longer distances better, but both 2 and 3 top out around 15 feet for a normal cable. To get anywhere close to 50 feet, you're going to need at least an active repeater (like this), but some devices may still not play nicely. USB over Ethernet is possible with adapters, but latency can be a concern and many devices will require an additional powered hub.
I suggest this and this
I bought the hub and it works great. First one I bought didn't.