can rocketfish switch dock support 4k?

This is not Nintendo or Rocketdish support

Since the Switch does not support 4K, no it cannot

Hello, my name is Fernando, an independent consultant. Hope you are doing great. I will be more than happy to help you with your query today.

Its HDMI port is “at least HDMI 2.0 compliant,” meaning it supports 4K output at 60 frames per second.

Hope I helped, see you soon!

There are a number of problems here.

Firstly, Nintendo have the handheld market locked down. No one is going to be able to challenge them at the moment in this field, it would be futile.

Secondly, the hardware concept you're asking for is impossible, at least it's impossible currently. There is no mobile hardware out there that could produce 1080 60 with reasonable graphics and a great battery life - it just doesn't exist. Will it exist
in the future? Sure, but not till another 3-5 years at least.

The Switch achieves it's gaming abilities using about 8 Watts of power on a 4,310mAh lithium-ion cell. A typical Switch can run most games for about 3 hours before running out of juice. Even when docked, the system only uses about 12 Watts.

Running games on a hybrid machine at much higher resolutions is one thing, running them at 4K docked is something else. The Switch can achieve higher resolutions on most games when docked, but it still uses the same hardware to
it. The dock for the switch contains no extra hardware, it simply allows the device to crack up the graphics and CPU resources using mains power, that's all.

A system the OP is describing would need some type of 'Power dock' with it's own CPU and graphics hardware - it's own SOC (system on a chip). Not only would this hardware have to contain some considerable hardware, to insure 100%
compatibility, it would have to be the same type of hardware as the handheld, it would be too expensive. A power dock that could provide better performance at 1080P is feasible, but at 4K? I doubt it.

I recommend Rocketfish 4K HD cables, they are affordable between $20-40 and is very reliable. I have one and its been going on for about 2 years without any issue.

I recently purchased a Rocketfish for 4K set up and I couldn't be more satisfied with purchase. I haven't tried some of the others that was mentioned but i have no complaints about the one im using!!!