In this guide
Yes, you can use USB-C to HDMI at 4K 60Hz — as long as your USB-C port supports DisplayPort Alt Mode, your adapter is HDMI 2.0 certified, and your display has an HDMI 2.0 input.
- USB-C port supports DisplayPort Alt Mode (DP 1.2 or higher)
- Adapter or cable is HDMI 2.0+ rated for 4K@60Hz
- Display has HDMI 2.0 input and is set to 4K@60Hz
- Using Thunderbolt 3 or Thunderbolt 4 port
- USB-C port only supports USB 3.0 (no Alt Mode)
- Adapter is HDMI 1.4 — caps at 4K 30Hz
- Display input is HDMI 1.4 or lower
- Using an uncertified or cheap generic adapter
What Your USB-C Port Needs
Not every USB-C port can output video. To hit 4K at 60Hz, your port must support DisplayPort Alt Mode — this lets video signals travel over the USB-C connection. DP 1.2 and above handles 4K@60Hz. Thunderbolt 3 and Thunderbolt 4 ports also work, since they include DP 1.4 support built in.
If your port only carries USB data (USB 3.0 or USB 2.0), it cannot output video at all. Check your device specs or manufacturer page to confirm Alt Mode support before buying an adapter. See our guide on whether USB-C supports video for a full breakdown.
Choosing the Right Adapter or Cable
The adapter is where most 4K 60Hz setups fail. You need an adapter or cable explicitly rated for HDMI 2.0 and 4K@60Hz. HDMI 1.4 adapters — which look identical — max out at 4K 30Hz. Always check the product listing for the HDMI version before purchasing.
Anker’s guide on USB-C and 4K 60Hz confirms that certified HDMI 2.0 adapters are required and that uncertified products frequently fail to deliver the full refresh rate even when the port is capable.
Quick Compatibility Reference
| Setup | Works? | Need | Note |
|---|---|---|---|
| Thunderbolt 3/4 + HDMI 2.0 adapter | Yes | HDMI 2.0 display | Most reliable option |
| DP Alt Mode + HDMI 2.0 adapter | Yes | DP 1.2+ port | Check device specs |
| DP Alt Mode + HDMI 1.4 adapter | No | Upgrade adapter | Caps at 30Hz |
| USB 3.0 only port + any adapter | No | Different port | No video signal |
Display Settings Matter Too
Even with the right port and adapter, some displays default to HDMI 1.4 mode on HDMI 2.0 ports. Go into your monitor or TV settings and confirm the HDMI port is set to 2.0 or “Enhanced” mode. On Windows, also check Display Settings to make sure the refresh rate is manually set to 60Hz.
If your connection is established but the image looks wrong or refresh rate is stuck at 30Hz, our USB-C to HDMI not working troubleshooting guide covers the most common fixes.
Bottom line: You can use USB-C to HDMI at 4K 60Hz reliably — just make sure all three components align: a USB-C port with DisplayPort Alt Mode, an HDMI 2.0 certified adapter, and a display with an HDMI 2.0 input set to the correct mode. Miss any one of these and you’ll be stuck at 30Hz or no signal at all.