8K HDMI 2.1 Switch 4K 120Hz 4x1 48Gbps VRR CEC ARC HDCP2.3 HDR10 8K 60Hz 4 Port HDMI 2.1 Switcher 4 In 1 Out HDMI Selector D-olby vision Atmos IR Remote for QLED TV,PS5,Xbox,Fire Stick,SkY Q

Can't comment regarding it's 120hz support but, otherwise, this is a good quality HDMI switch and I've not noticed any reduction in quality.Only issue I had was with a 1080p source and using an HDMI2.1 cable. The switch didn't think there was anything connected and nothing was routing through to the TV. Changing to an older HDMI1 cable resolved this. Something to be aware of if you're getting any issues with non 4K sources such as Freeview, Freesat etc.

Supports all the features that a modern console and TV require:- HDR- VRR / ALLM- 120hz refresh- ARC (on a seperate TV input)- CECBought this to replace a cheap switcher which did not work correctly. I was a bit concerned that this device might also have issues but happy to say that it worked perfectly!

I am using this switch with a Sony Inzone M9 monitor, I have an Apple TV 4K, xbox series s and Nintendo switch plugged into the hub.I 1st installed the switch by plugged in into HDMI port 1 on my monitor, the issue I experienced was the Apple TV would not play anything back in hdr, I got a drm error message and the Xbox defaulted to 1 resolution only and did not allow me to change which was 640x480.Both the Apple TV and xbox would work with no issue at all directly plugged into hdmi port one on the monitor, I did check the M9 support docs on the hdmi ports and both ports showing the same hdmi 2.1I decided to try the switch plugged into hdmi port 2 on my monitor and low and behold working, still to this day unsure why it works in hdmi port 2 and not port 1 when both ports meant to be the same.There is 1 issue with this switch hence why I have marked it down, if I play my Xbox in 120hz a black screen appears for a few seconds randomly, this does not happen if I set the Xbox to 60hz, also 120hz works fine if the Xbox is plugged directly into the monitor.Please note my issue maybe just related to the Sony Inzone M9, these issue may not appear when using on a different screen.

I was using a 4K 60hz 4 way splitter, used this for few years, connecting my PS4,BluRay player, fire stick and Nvidia Shield, worked with no issues. My problems started when I sold my PS4 and purchased a PS5, while using my PS5 the picture would flicker off and on and the sound would drop off.After searching internet people with same issues cured it by replacing their hdmi leads with 2.1 4K 120hz leads. I ordered new hdmi leads, this helped but picture and sound still with occasional issues, after checking specs of my splitter I replaced it with this, this solved ALL my issues and picture and sound are now perfect.

As an owner of several 4K 120Hz gaming devices and a 'top of the line' receiver, that has not yet had a firmware update to fully unlock all the features, combined with a TV that only has one 120Hz input, I was becoming frustrated at not being able to switch between devices without swapping cables.This is the switch that fixes all that!I hooked up my Xbox Series X, PS5 and PC to the switch and all devices now have 4K 120Hz HDR with variable refresh working too.Setup is a breeze and the box includes a remote, mounting bracket and an IR remote lead, so the switch can be easily hidden away out of sight, though I suggest some ventilation as the unit is quite warm to the touch after some time playing games at full bandwidth.Switching between devices is quick, with no delay noticeable that was introduced by the switch, and all the devices remember the resolution and settings between sessions which is a change from the other popular two-channel switch that seemed to reset the Xbox and PS5 to lower resolutions when not active.Atmos at 9.2.2 with Forza Horizon at full bore did not glitch at all, so I expect the 48Gbps throughput is probably accurate.The only two issues I've found is that the Samsung TV sometimes flickers when in Game Mode Auto, but that could be the TV as it also does that when running through the receiver on the Nintendo Switch, and it would have been nice if the HDMI port auto-selected the active device. That being said, the remote has direct access buttons for each channel, if you have an activity-based remote like a Harmony, it's easy to add to your sequence.Overall then, an excellent product and an easy 5/5 stars. Perfect for anyone who wants to add HDMI 2.1 switching with devices limited by ports, or people like me who are impatiently waiting for firmware updates.