HDMI 2.1 Splitter 4K 120Hz 8K 60Hz 1 in2 Out VRR ALLM HDCP2.3 HDR10 8KUHD Dolby Vision Atmos Scaler 4K EDID 1080P Dual Monitors HDMI 2.1 Splitter 1X2 for PS5 SkyQ Xbox NVIDIA AMD

I've just been recently getting back into streaming and was setting up my Elgato HD 60S+ to do some PS5 Pro capture, but realized that the passthrough on my Elgato HD60S+ induces input lag and has problems with processing HDR signals. I was looking for a cheap alternative to:A) Scale my 4K 60 FPS PS5 output to 1080p (for ease of capture)B) Split the signal from my PS5 Pro and loop it back to my TV so I could make the full use of the signal, max 4K 120 FPS w/ HDRAfter a bit of setup I can do EXACTLY that with this little box. It's largely plug & play, although I did need a USB extension cable for the included USB-A to USB-C power cable (it's quite short). Now I can easily capture my PS5 Pro using my Elagto HD60S+ (scaled down to 1080p) while sending an untouched 4K 120FPS signal from my PS5 to my TV through this splitter/scaler. Thank you.Will update in the future with any concerns!Pros:+ Tiny and easy to setup+ Highly functional as both a splitter (of 1 input) and a scaler (to two separate outputs)+ Great for bypassing HDCP HDMI limitations of Elgato Capture Cards+ indicator lights display when inputs/outputs are activeCons:+ Gets quite warm+ short stock USB-A to C (m2m) cable+ easily susceptible to static electrical shocks

I bought this to replace the SP12H2 model because a reviewer said that this one supports CEC (the SP12H2 does not). Well, neither does this one. I'm using it to split a connection from an AVR to the TV and an ESP32 to control Hyperion LED lighting. Without CEC I have to power the TV off manually. This does NOT solve that problem. I should have listened to the manufacturer when they say it lacks support for CEC rather than a reviewer saying it did.Edit 12/11/2024:So after going down a rabbit hole, I need to amend my review. This WILL do CEC. However, you need to (first find and) download GD32 All In One Programmer, SP12H21 Firmware Update, and also the GD32 USB drivers. This will allow you to flash the firmware to an updated version that will support CEC. Mine did not out of the box and finding all the software is difficult but doable. Now I can confirm what the other reviewers said and it will do CEC with the proper firmware.

Edit: I am going to amend my review. The product does what it states, but it is not very consistent. I get black screen issues and random color flashing once every 5-30. I can only assume that there is some sort of HDMI Handshake issue because the device will become glitchy if you mess with certain settings or unplug cables.Buyers need to be aware of how fickle this device is. Yes, it works as advertised but it all comes down to how you hook everything up. If there is even a single fault in the series, it will cause intermittent drop out issues. Ensure that the cables you're using are fully rated and certified for your target throughput, and double check if your connections are secure. HDMI Cables can and do fail over time, so make sure yours are of passable good quality. I was able to fully passthrough HDR 4k@120HZ 10bpc without issue into a multichannel sound system. If your displays are of different refresh rates, I imagine you might run into potential issues if you're not HRF monitor as your source 1. In summary, it is a good device, and it does its job for an affordable price.

My setup involves a 20' HDMI 2.1 cable (my consoles are on the side of the room). Never an issue with audio or video with this. My series X lights up with all the HDMI 2.1 goodies it supports. MY AVR only supports HDMI 2.0b so no 4k @120hz.... I used ARC for years in till that stopped working, weeks of trying things no go. So I have a great Atmos sound system but, I can only use my video game consoles through the speakers on the TV.... no fun.So, this guy looks like it will help, fairly inexpensive as well, fair reviews. So gave it a shot, spent another $40 to pick up other HDMI 2.1 cables to make sure I had enough.As said, it needs a 5v 2amp power cord, got one of those, connected it all up, my video games would go in the input, and on the output, only change is on the 2nd port out, I adjusted that so it would be only 1080p. Port one would go directly in the TV. The TV lights up with all the HDMI 2.1 goodies it supports as it should. Port 2 would down convert to 1080p 120hz (all within HDMI 2.0b spec) and send to my AVR. Sounds good, Right ?The TV is fine but, the problem is with the Audio. Atmos on my AVR would go on for like 5-10 seconds and drop out, then drop out again, rinse and repeat forever. When the audio jumped out, it would sometimes cause flickering/black screens for a second. So, I got Atmos but, not usable. Tried DTS just for giggles and the same thing happened. I have never seen this issue before owning this device.I contacted the seller; they gave me things to try, and I tried every one of them. No change. They even sent me a replacement, after waiting another week, tried and the SAME THING HAPPENED. They really tried to help.They claim use a short HDMI cable, so I even tried a HDMI 2.1 repeater to help boost the signal (maybe that was the issue?) This resulted in no change at all. I really wanted this to work.After almost 3 weeks of troubleshooting this, spending extra money and anything I could possibly help including tons of time with Dr. Google. I will be returning this item, I think I have tried everything (did a lot more than even posted here, trust me)It just does not work for my case.