Cable Matters 48Gbps Unidirectional USB C to HDMI 2.1 Adapter, Supports 8K 60Hz / 4K 240Hz HDR, Thunderbolt 4 to HDMI2.1, HDMI 2.1 to USB C Adapter, Thunderbolt 5 Compatible - up to 4K@60Hz for macOS

This is the second time that I buy a type c/display port to HDMI 2. The first one was ULT-WIIQ-US 6.6ft, DP 1.4a to HDMI 2.1. Unfortunately, this cable had audio issues, it stutters every 30 seconds and after 4 days it stopped working on 4k 120hz RGB. I researched a lot on these adapters and I found out that my RTX 2070 support type c video out display port alt mode, so I searched these adapters too. It seems that many of these adapters suffers from overheating, signal loss when switching in and out of HDR. Also, some of them require USB power. It seems the most of these adapters use the same chipset, but, it is the firmware that cause these issues. Then I saw that Cable Matters provide firmware update for some of the display port/type c to HDMI 2.1 that mention many bugs fixes related to issues that I mentioned. I decided to buy the short adapter and buy a hdmi 2.1 cable instead of the cable type, as the adapter is more expensive than the cable and it reduce the chance for it to stop working properly. The longer the cable is, there is a higher chance for failure. As soon I got it I download the latest firmware update from Cable Matters website and saw that the cable is on older firmware, so I update it . It takes very short time, and it works without issues. I can send HDR signal without losing signal, the audio does not have any issues and as I wrote in the title, it works on 4k 120 Hz 12 bit RGB. I will update the review if the adapter will fail.

Overall a good quality product. Successfully connected the HDR UHD LCD monitor of my upgraded Dell XPS 15 9510 running a film to my TV via one of my reverse-compatible Thunderbolt 4 USB-C type ports, this Cable Matters adapter, and a UGreen 48 Gbps 8K 2.1 HDMI 60 Hz Cable. Can confirm that 2.1 HDMI works very well at 60 Hz for 1920x1080p Full HD. No lags, good connectivity and image quality, and successful clear audio transmission. Currently using a NVIDIA(R) GeForce RTX(TM) 3050 Ti 4GB GDDR6 [45W] graphics card. This CableMatters device however, should definitely work for 10-bit 4K HDR UHD @120Hz but some people may be required to perform a manual setup, set up and apply an Nvidia settings custom resolution, or ensure that they have a GPU that supports 4k @120hz before this works. No drivers or external power supply required. For most, the computer will instantly recognise this device, there will be an immediate and unnoticeable installation, and simple plug and play. The cable does not seem to be able to achieve a top speed of 48Gbps but is nevertheless very fast, and from a viewpoint of practicality still does it's job very well. Quality of the male USB-C and female HDMI connectors is good and directly correlates to price paid. Quality of the aluminum protective materials is above average, and the cable although very short, on the cheap side, and slightly rigid, is both durable and user-friendly. So far no problems.

I have a Samsung 49" Odyssey Neo G9 Mini-LED Curved Gaming Monitor and it's on my desk along with my work laptop. This monitor supports multiple inputs and can display both simultaneously. So I have my PC connected to the DisplayPort connector, and I bought this adapter for my work setup. My work setup is a MacBook Pro with the M1 chip. I have that connected to a docking station, and I have this adapter connecting the docking station to the HDMI cable that is then connected to the G9 monitor. It works great. No flickering or other strange display issues. It works with the Mac as a separate dual-screen setup. Additionally, I have Parallels installed, and it is running Windows 11. I can use the multi-monitor setup from within that VM as well without any issues. This is a great little adapter and I would recommend it if you have a similar setup.

I have never reviewed a product before, but this one worked so great right out of the box, I felt it was owed a great review to help other PC gaming enthusiasts if they are on the fence. I am the owner of an EVGA 2080ti, and I wanted to take advantage of 4k gaming on my LG CX OLED display. In order to game at 4k, 120hz, with full 10bit RGB colour, you need to have HDMI 2.1 output from your graphics card. The 2080ti is only HDMI 2.0b, and thus you can't get these output settings normally. I had been trying to use a club3d display port to HDMI 2.1 adapter, but it was buggy and didn't play well with NVIDIA driver updates. Enter this wonderful device. The 2080ti has a USB C output, dubbed virtual link, and it is capable of outputting up to 8k. I plugged in this adapter to the GPU's USB C port, plugged in my certified HDMI 2.1 cable running to the OLED display, and bam. It worked instantly, 4k, 120hz, full 10bit RGB output. The only downside is due to the technical limitations of the 2080ti not natively supporting HDMI 2.1, I am not able to make use of G-Sync. This device is a must have until you get your hands on the next generation of GPUs!

Cumple con la función de pasar señal 4K 120hz hasta 12 bit color Full Gamma. Pero se pierde compatibilidad con VRR (Gsync / Freesync) Si tienes una RTX 20XX y no quieres estar limitado al HDMI 2.0 este adaptador es la opción, pero considera que no es compatible con VRR.

I was quite mad discovering that it needs a firmware update, and then to my dismay unable to achieve the image I wanted. However, it turns out the cable was the issue!

I have the AMD RX6800 XT graphics card in my computer, it has one HDMI output, two DisplayPort and one USB-C. The HDMI was already taken by another monitor I use, so I ended up opting for USB-C -> HDMI to be able to share screen to my TV. Cheap adapters kept limiting my connection. One gave me only 24Hz, very "laggy" picture. Another would top out at 30. A third wouldn't even let me reach 4k. Then I decided to go for the recognized Cable Matters, and just out of the box I can turn up all settings without any issues. Thanks for a reliable device! Extra bonus star for the fact that firmware updates are available even after buying the product. That's was beyond expected. 6/5!

It has been quite a learning experience on how to get my MacBook running at 4k HDR 60hz and this adapter will do it for you. For me and perhaps for you too, you have to choose the full 4k resolution of either 2048x1080 (HiDPI) or 4096x2160 before you get a choice of 25, 50 or 60hz, otherwise, for me, all I get is 25hz for my very old Sony TV. Thus with my MacBook outputting at 4k 60hz HDR I had thought that I would get my netflix, disney and amazon all playing at 4k HDR, but unfortunately for me my whole chain of receiver to my old 4k HDR Sony tv is a full chain of 2.2 compliant devices so therefore all the streaming services still only plays 1080p. Yes you can get netflix, disney and amazon prime to play at 4k but you do need all your devices to be HDMI 2.2 compliant.

Vale lo que cuesta, fabricación y acabados de calidad.