---
product_id: 268273440
title: "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"
brand: "cable matters"
price: "$60"
currency: NZD
in_stock: true
reviews_count: 9
category: "Cable Matters"
url: https://www.desertcart.nz/products/268273440-cable-matters-48gbps-unidirectional-usb-c-to-hdmi-2-1
store_origin: NZ
region: New Zealand
---

# 48Gbps ultra-fast bandwidth Thunderbolt 3/4/5 compatible Supports 8K@60Hz & 4K@240Hz HDR 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

**Brand:** cable matters
**Price:** $60
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your display game — connect, captivate, conquer!

## Quick Answers

- **What is this?** 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 by cable matters
- **How much does it cost?** $60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/268273440-cable-matters-48gbps-unidirectional-usb-c-to-hdmi-2-1)

## Best For

- cable matters enthusiasts

## Why This Product

- Trusted cable matters brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Future-Proof Visuals:** Experience stunning 8K resolution at 60Hz or ultra-smooth 4K at 240Hz HDR — perfect for next-gen gaming and professional displays.
- • **Broad Device Compatibility:** Optimized for Intel Evo, Nvidia RTX 3000/4000, AMD RX 6000/7000 series, and macOS (up to 4K@60Hz), ensuring you stay ahead with versatile connectivity.
- • **Lag-Free, Vivid Experience:** Auto Low Latency Mode (ALLM) and HDR support guarantee immersive, blur-free visuals and lifelike colors for work and play.
- • **Premium Durability & Design:** Braided cable and aluminum housing deliver a sleek, robust adapter that resists wear and elevates your workspace aesthetics.
- • **Seamless Thunderbolt Integration:** Plug-and-play compatibility with Thunderbolt 3, 4, and 5 devices ensures effortless connectivity with your latest laptops and desktops.

## Overview

The Cable Matters USB C to HDMI 2.1 Adapter delivers ultra-high bandwidth of 48Gbps, supporting breathtaking 8K@60Hz and 4K@240Hz HDR video output. Compatible with Thunderbolt 3, 4, and 5, it offers plug-and-play ease for professional-grade visuals on the latest laptops and desktops. Its premium braided cable and aluminum enclosure ensure durability and style, while features like Auto Low Latency Mode enhance gaming and streaming experiences. Ideal for users with Nvidia RTX, AMD RX, and Intel Evo platforms, this adapter future-proofs your setup with cutting-edge HDMI 2.1 technology.

## Description

desertcart.com: 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 : Electronics

Review: The type c to hdmi 2.1 works with the lg 42c2 on 4k 120hz 12 bit RGB wtihout any issues. - 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.
Review: Works with HDMI 2.1 - 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.

## Features

- Certified USB-C to HDMI 2.1 Adapter: Upgrade to HDMI 2.1 or future-proof your setup with the Cable Matters USB C to HDMI 2.1 Adapter; HDMI to USB C cable adapter combines the latest HDMI 2.1 standard with the versatility of USB-C; The HDMI USB C adapter (USB C adapter to HDMI) supports up to 8K 60Hz resolution on compatible displays and devices; HDMI to Type C adapter is perfect for ultra high resolution displays
- Stunning 8K@60Hz / 4K@240Hz Resolution: Connect 8K or 4K 240 Hz gaming monitors and TVs to laptops, smartphones, tablets, and more with a USB HDMI adapter; USBC to HDMI adapter (USB-C to HDMI adapter) supports a maximum video resolution of 8K 60Hz with RGB 4:4:4; Enjoy high-quality video with no loss in picture quality with the Thunderbolt 3 / Thunderbolt 4 to HDMI adapter
- Vivid Video Experience: The 8K HDMI to Thunderbolt adapter supports USB-C devices with DP Alt Mode support; This Thunderbolt to HDMI adapter is Thunderbolt 5 / Thunderbolt 4 /Thunderbolt 3 compatible; USB-C adapter supports HDR for breathtaking colors; Auto Low Latency Mode (ALLM) support for lag-free gaming with the HDMI to USBC adapter; Enjoy surround sound audio for lifelike sound with the USB C HDMI adapter
- Wide Compatibility: Take advantage of 8K resolution support on a newer desktop computer or laptop like Lenovo, DELL XPS with the USB C to HDMI 8K adapter; The USB C HDMI cable is compatible with newer Nvidia RTX 3000 series and AMD Radeon RX6000 series graphics cards or USB4 (USB 4) and Thunderbolt 4 port on a laptop with 11th generation Intel Tiger Lake CPU and Intel Iris Xe graphics or later versions; 8K video is compatible with Intel Evo laptops using the USB Type C to HDMI adapter
- Important Notes: Achieving 8K@60Hz or 4K@240Hz requires a compatible graphics card (NVIDIA RTX 2060/30/40 series, AMD RX 6000/7000 series, or Intel 11th/12th Gen with Iris Xe or newer), an HDMI 2.1 display, and a certified HDMI 2.1 cable. Actual output depends on your laptop and USB-C port. macOS is limited to 4K 60Hz over USB C to HDMI. For higher refresh rates on macOS, use our firmware-enhanced adapter (ASIN B0DCN798Y1 / Model 201488). VRR/G-Sync/FreeSync are not supported.
- Innovative and Durable Design: Premium construction of the USB C to HDMI adapter 4k 120hz features a premium braided cable for durability and prevents fraying; Metal connectors and aluminum enclosure of the USB-C HDMI adapter provides a premium look and feel and improves the performance of the HDMI 2.1 to USB C adapter.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08MSWMXT4 |
| Best Sellers Rank | #51 in Thunderbolt Cables |
| Customer Reviews | 4.3 4.3 out of 5 stars (816) |
| Date First Available | November 4, 2020 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.634 ounces |
| Item model number | 201388-A |
| Manufacturer | Cable Matters |
| Package Dimensions | 7.72 x 3.35 x 0.43 inches |

## Product Details

- **Brand:** Cable Matters
- **Color:** Gray
- **Compatible Devices:** Laptop, Projector, Television
- **Connector Type:** USB Type C
- **Specific Uses For Product:** TV, PC, Monitor, Laptop

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/71WlITM-lhL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Is this adapter bidirectional?**
A: No. It only coverts video from USB-C with DP Alt Mode or Thunderbolt 3/4/5 ports (host) to HDMI displays. It does not support HDMI sources like PS5 or Xbox to USB-C devices.

**Q: Does this adapter work with macOS?**
A: Yes, but macOS systems are limited to 4K@60Hz output over USB-C/Thunderbolt, regardless of the display’s capabilities.

**Q: Why do I experience flickering or no signal?**
A: Use a short certified HDMI 2.1 cable and confirm HDMI 2.1 mode is enabled on your display. Try lowering resolution or refresh rate. Search “Cable Matters 48Gbps Adapter Troubleshooting” for further instructions.

**Q: Why am I not getting 8K or 4K 240Hz?**
A: It require a GPU that supports 8K or 4K240Hz over USB-C (RTX 20/30/40, RX 6000/7000, Intel 11th/12th Gen or newer), an HDMI 2.1 display, and a certified HDMI 2.1 cable. Enable HDMI 2.1 mode on your display and drivers are up to date.

**Q: Why do I get only 4K@120Hz with Intel GPUs and Acer monitors?**
A: This is a known compatibility limitation with Intel GPU and Acer monitor setup when using this product. With AMD or NVIDIA GPUs, the same monitor can reach 4K@144Hz or higher.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The type c to hdmi 2.1 works with the lg 42c2 on 4k 120hz 12 bit RGB wtihout any issues.
*by R***. on November 14, 2022*

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.

### ⭐⭐⭐⭐⭐ Works with HDMI 2.1
*by 宮***蔵 on December 29, 2021*

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.

### ⭐⭐⭐⭐⭐ Works great with my setup
*by D***E on February 16, 2024*

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.

## Frequently Bought Together

- Cable Matters 48Gbps 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, Compatible with Thunderbolt 5 - Max Resolution on Mac is 4K@60Hz
- Cable Matters 80Gbps USB C to DisplayPort 2.1 Adapter, 16K@60hz, 8K@240hz, 4K@960Hz and HDR Support - Thunderbolt 5/4, USB4 Compatible with VR Headset, MacBook Pro, iPad Pro, XPS, Surface Pro
- Cable Matters 32.4Gbps USB C to DisplayPort 1.4 Adapter, 4K@240hz, 8K@60hz, and HDR Support -Thunderbolt 4 / USB4 Compatible with Oculus Rift S, iPad Pro, iPhone 16/15 Pro, MacBook Pro, XPS, Surface

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-14*