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Nix  
#1 Posted : Saturday, September 26, 2026 5:47:31 PM(UTC)
Nix

Rank: Newbie

Groups: Registered
Joined: 8/30/2020(UTC)
Posts: 4
United Kingdom
Location: london

Hey all,

I run a decent rig and seem to be dropping 4K webcams,

They are running on usb c and have died additional usb c cards with 10gbps,

I have run the Elgato 4K cameras to 10gbps hubs and then back to the pc as they cables done seem to adapt well to volt drop,

I guess my question is are there any decent usb c video mixers/ power units / connectors/ hubs that you could suggest,

I have 2 x Elgato 4k60 on usb c and one insta360 running more stable from usb a and an other usb A 2k webcam and a Q2n-4K
The 2 Elgato are a pain in my ass

Something isn’t right and would like some ideas of how I can get it better however I might take the 4K Elgato out and see how this improves and add the 2 x insta 360s in there.

Any knowledge you can share would be appreciated for these situations.

Kayo33  
#2 Posted : Saturday, September 26, 2026 11:57:57 PM(UTC)
Kayo33

Rank: Advanced Member

Groups: Registered
Joined: 10/20/2023(UTC)
Posts: 162
France

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Hi,
decent rig = ? laptop, desktop pc, workstation ?
What motherboard/CPU/GPU do you have?
What is the resolution of the vMix project and the webcams?
Elgato 4K cameras = facecam 4k ?
insta 360 link ?

In most cases, you should avoid USB hubs,
because certain motherboard USB ports often already share same USB bandwidth.

To avoid voltage drop, you need USB hubs with an external 12V/2A power supply and a VIA VL822 chip,
such as the Delock 64053

https://www.delock.com/p...male.html?setLanguage=en

For PCIe cards with USB ports, each USB port needs to have its own controller :

PEXUSB3S44V or P5Q4A-USB-CARD : 4 independent 5 Gbps USB ports on a PCIe 2.0 x4 card with 4 Renesas/NEC µPD720202 controllers (1 per USB port)

https://www.startech.com...rds-adapters/pexusb3s44v
https://www.startech.com...-adapters/p5q4a-usb-card

or for usb 10 gbps :
P10Q4C-USB-CARD or P10Q4A-USB-CARD : 4 independent 10 Gbps USB ports on a PCIe 3.0 x4 card with 4 ASMedia ASM3142 controllers (1 per USB port)

https://www.startech.com...adapters/p10q4c-usb-card
https://www.startech.com...adapters/p10q4a-usb-card


It is preferable for these PCIe USB cards to be installed in a PCIe slot connected to the CPU lanes.

If you have any available PCIe x1 slots (i.e. connected to the chipset), you can use a PCIe controller card with 2x USB 3.0 5G Type A ports, powered, featuring the FL1100 chipset
but you’ll need to configure the webcam inputs to MJPG or H.264 and conect only usb 2.0 webcams (insta 360 or zoom q2n)
https://www.ebay.co.uk/itm/298705338544

For a full-USB configuration, an AMD platform is preferable because some of the motherboard's USB ports are connected directly to the CPU.
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