CABLETIME USB-C to HDMI 2.1 Adapter, 8K@60Hz, 4K@144Hz
USB-C to HDMI 2.1 Adapter, 8K@60Hz, 4K@144Hz
Connect a video-capable USB-C or Thunderbolt laptop, tablet or desktop to an HDMI monitor, television or projector. The CABLETIME CP15A combines HDMI 2.1-class display capability, a Synaptics VMM7100 chipset and a compact zinc-alloy body for gaming, creative work, presentations and home entertainment.
Bring 8K detail and high-refresh HDMI performance to a compatible USB-C device
8K@60HzUltra-high-resolution output for compatible 8K displays and source hardware.
4K@144HzHigh-refresh performance for responsive gaming and fluid desktop motion.
2K@240HzFast compatible display modes for competitive gaming setups.
HDR10Richer highlights, deeper shadows and improved visual depth on supported content.
See more detail on a larger HDMI display
Use one compact adapter to move from a USB-C workstation to an HDMI screen without carrying a full-size dock. It is suited to high-resolution video review, large spreadsheets, CAD work, presentations and premium home-entertainment setups.
High-refresh gaming without giving up 4K clarity
With compatible graphics hardware, operating-system settings, HDMI cable and display, the adapter supports demanding modes up to 4K@144Hz and 2K@240Hz. The final resolution and refresh rate are determined by the complete source-to-display chain.
HDR10 for brighter highlights and deeper contrast
Compatible HDR content can display a wider range between bright and dark areas, helping films, games and visual projects look more dimensional. HDR performance depends on the source device, application, operating-system settings, HDMI cable and display.
Powered by the Synaptics VMM7100 conversion chipset
The integrated VMM7100 manages conversion from the DisplayPort video signal carried by a compatible USB-C port to HDMI output. This active conversion design is what enables advanced resolution and refresh-rate combinations beyond a basic passive adapter.
Mirror for presentations or extend your workspace
Duplicate the same picture on both screens for meetings and demonstrations, or extend the desktop to gain more room for timelines, reference windows, spreadsheets and communication apps.
Connection direction: USB-C source to HDMI display
Connect the USB-C male plug to a laptop, tablet, phone or desktop that supports DisplayPort Alternate Mode or Thunderbolt video. Connect an HDMI cable from the adapter’s HDMI female port to the display.
Important: the adapter is not bidirectional. It does not convert an HDMI computer output into a USB-C monitor input, and a charging-only USB-C port will not provide video.
Compact zinc-alloy construction for everyday setups
A zinc-alloy shell helps protect the electronics, while the short braided lead reduces stress around the host port. The compact design fits easily into a laptop sleeve, presentation kit or permanent desk setup.
Product identification
Model CP15A • SKU CT-CMHF8K-ZG • USB-C male to HDMI female adapter.
Technical specifications
| Source connector | USB-C male, gold-plated |
|---|---|
| Display connector | HDMI female |
| Maximum supported modes | Up to 8K@60Hz, 4K@144Hz and 2K@240Hz with compatible equipment |
| HDR | HDR10 support with compatible source, content and display |
| Chipset | Synaptics VMM7100 |
| Display modes | Mirror and extended desktop, subject to host operating-system support |
| Construction | Zinc-alloy shell with black braided lead; approximately 5.1mm cable diameter |
| Direction | USB-C / Thunderbolt source to HDMI display only |
| Model / SKU | CP15A / CT-CMHF8K-ZG |
USE — step-by-step setup
- Confirm that the source USB-C port supports DisplayPort Alternate Mode or Thunderbolt video.
- Connect the adapter directly to the source device.
- Connect a suitable HDMI cable between the adapter and the HDMI display.
- Select the correct HDMI input on the display.
- Choose the required resolution, refresh rate, HDR and mirror/extend settings in the operating system or graphics control panel.
COMPATIBILITY — check before ordering
Compatible with many USB-C DisplayPort Alt Mode and Thunderbolt laptops, desktops, tablets and selected smartphones. The receiving device must have an HDMI input.
- A USB-C port used only for charging or data will not output video.
- For demanding HDMI 2.1 modes, use an Ultra High Speed HDMI cable and a display that supports the selected mode.
- Many Mac configurations output up to 4K@60Hz through USB-C-to-HDMI adapters; verify the specification of the exact Mac model.
- The lowest-capability device, cable or port in the chain determines final performance.
USER SCENARIOS — where it adds value
- High-refresh gaming: connect a capable gaming laptop or compact PC to an HDMI gaming display.
- Creative workstation: review video timelines, photographs, 3D projects and detailed design work on a larger screen.
- Home entertainment: connect a compatible USB-C computer to an HDMI television for films, streaming and local media.
- Meetings and training: carry one compact adapter for HDMI-equipped conference rooms and projectors.
- Productivity: extend the desktop for spreadsheets, dashboards, communication and reference windows.
FAQ — frequently asked questions
Does every USB-C port support this adapter?
No. The USB-C port must support DisplayPort Alternate Mode or Thunderbolt video output.
Can it deliver 8K@60Hz or 4K@144Hz?
Yes, when the source GPU, USB-C implementation, operating system, HDMI cable and display all support the selected mode.
Is the adapter bidirectional?
No. It works from a USB-C source to an HDMI display.
Does it charge the laptop?
No. This model is a display adapter and does not include a USB-C Power Delivery input.
Why am I getting a lower resolution or refresh rate?
Check the host-port capability, graphics settings, HDMI cable rating, display input specification and operating-system limitations.
Does it support audio?
Yes, digital audio can pass with video when the source, operating system and HDMI display support audio output.
Genuine CABLETIME product supplied with GST invoice, secure India fulfilment, customer support and the applicable product warranty. Match the SKU and confirm the source port’s video capability before purchase.
Check the signal path first.
Identify the source and display or capture device, check connector type and conversion direction, then connect and select the correct input. Choose a video mode supported by the complete setup.
Will I always get the maximum listed resolution?
Actual output depends on the source, receiving device, intermediate equipment, selected mode and the length or version you choose. Check any length-specific limits in the product details.
Which length or version should I select?
Use the product selector to choose the required option. Check that option against any model, connector, length or pack-size distinctions in the specifications before ordering.