UGREEN 70321 2m 48Gbps HDMI 2.1 Cable, 8K60/4K120
Overview
UGREEN 70321 is a 2 metres passive copper full-size HDMI Type-A male-to-male cable rated up to 48Gbps. Either plug may face the source.
What it does well.
Key features
Verified at a glance
48Gbps class bandwidth. Rated cable capacity, not internet speed or a guarantee that every connected port exposes every mode.
Up to 8K at 60Hz. Requires a compatible source, display, content path, firmware and selected signal format.
Up to 4K at 120Hz. The exact product page verifies up to 8K at 60Hz and 4K at 120Hz. Actual output is the highest mutually supported mode across the complete chain.
2m passive copper run. No active electronics, external power adapter or Source/Display orientation is required.
HDR and audio carriage. Carries Dynamic HDR, Dolby Vision, HDR10+, eARC on compatible systems.
Video performance and bandwidth
Resolution without guesswork
Model 70321 is rated up to 48Gbps and up to 8K at 60Hz or 4K at 120Hz. Those labels describe the cable’s supported ceiling under compatible conditions; they do not force a source to output that mode.
A television or monitor may reserve its highest-bandwidth mode for selected HDMI ports or require an “Enhanced”, “Input Signal Plus”, “Deep Colour”, “8K”, “4K high frame rate” or similarly named input option. Consult the display manual because menu names vary.
- Any AV receiver, switch, splitter, wall plate, adapter, dock or capture device in the path must also support the selected mode.
Gaming and refresh-rate guidance
Smooth modes need a complete compatible chain
The exact listing identifies gaming-related signalling such as VRR, ALLM, QFT, QMS. Each function must also exist on the console or GPU, game, display, firmware and selected HDMI port.
PlayStation 5 and Xbox Series X commonly target supported modes up to 4K at 120Hz. Even when this cable is rated for 4K at 120Hz, it cannot make a console or game output a refresh rate the console does not provide.
- Select the correct HDMI input and enable the display’s enhanced/high-frame-rate input mode.
HDR and eARC audio
The cable carries formats; it does not create them
Verified picture/audio features for this exact listing include Dynamic HDR, Dolby Vision, HDR10+, eARC. The source, content, application, display and any AV equipment must support the chosen format.
Dynamic HDR or Dolby Vision requires compatible encoded content and an enabled display. An HDMI cable does not convert SDR to HDR and cannot add brightness, contrast or colour capability that the screen does not have.
- ARC fallback operates within the older ARC format limits when eARC is not available throughout the connection.
Passive copper construction
Non-directional everyday installation
Passive-copper HDMI cable with a nylon-braided exterior, metal connector housings and full-size HDMI Type-A male plugs.
No official certification claim is made unless the supplied retail packaging carries a matching Ultra High Speed HDMI label and valid QR code.
- Outer construction: Nylon-braided outer jacket.
Use scenarios
Practical connection planning
Console to TV or monitor. Use the 2m run when both devices have full-size HDMI ports and the route reaches without tension.
PC or laptop to display. Connect a computer with a compatible full-size HDMI output; USB-C-only systems need an adapter or dock rated for the desired mode.
Media player to home cinema. Connect a streaming box or Blu-ray player to a television or AV receiver, within the capabilities of every port in the path.
Compatible devices and systems
Full-size HDMI Type-A fit
Sources. Consoles, GPUs, HDMI laptops, media players and AV receivers with full-size HDMI output.
Displays. TVs, monitors and projectors with full-size HDMI input at a mutually supported mode.
Audio equipment. Compatible receivers and soundbars; use labelled eARC/ARC ports for audio return.
Both ends are full-size HDMI Type-A male; this cable does not convert USB-C, DisplayPort, Mini/Micro HDMI, DVI or VGA.
Setup and usability guidance
Connect, configure, verify
- Measure the route and confirm 2m reaches both ports without stretching or leaving either connector under sideways load.
- Connect either plug to the HDMI output on the source because this passive copper model is non-directional.
- Connect the other plug to the selected HDMI input on the display, receiver or soundbar and choose that input.
- Enable the display’s enhanced/high-bandwidth HDMI input mode where required, then select resolution, refresh rate and HDR on the source.
Check before buying
Important limitations
Confirm every point that affects your intended mode:
- The required route is suitable for 2m without tension, sharp bends or unnecessary excess.
- The source HDMI output and display HDMI input both support the intended mode, up to this model’s verified ceiling of 8K60 or 4K120.
- Any receiver, switch, splitter, capture device, dock, adapter, wall plate or extension between the endpoints supports the same bandwidth, HDR, HDCP and audio features.
- The source content, game, GPU/console firmware and display input settings support the requested resolution and refresh rate.
What this product does
Scope and boundaries
- Carries compatible digital HDMI video and audio between two full-size HDMI ports.
- Provides a cable path rated up to 48Gbps and up to 8K60 or 4K120 for compatible systems.
- Passes supported features from this exact listing, including Dynamic HDR, Dolby Vision, HDR10+, VRR, ALLM, QFT, QMS, eARC, 3D.
- It does not add 8K, a higher refresh rate, HDR, VRR, eARC or an audio codec to equipment that lacks that capability.
- It does not upscale content, decode surround sound, generate extra frames or make an older HDMI port operate as a newer one.
- It does not convert USB-C, DisplayPort, Mini HDMI, Micro HDMI, DVI or VGA to full-size HDMI.
What to do
Care and installation practice
- Hold the connector housing when inserting or removing the plug; align it carefully with the HDMI port.
- Leave a relaxed service curve behind the display and support the cable so the port carries no weight.
- Update source and display firmware, use the correct high-bandwidth ports and verify the selected input mode.
- Do not pull by the cable body, force a misaligned connector or leave the plug under lateral tension.
- Do not sharply bend, knot, crush, staple, pinch under furniture or route beside heat or moisture.
- Do not advertise or select a mode beyond this exact model’s verified 4K120/8K60 ceiling.
Warnings and limitations
Read before installation
Maximums are negotiated. 48Gbps, 8K60 and 4K120 are ceiling capabilities. The lowest-capability source, port, intermediate device, display, format or setting controls the result.
Protect the HDMI ports. The cable is flexible, but HDMI sockets are not load-bearing. Avoid tension, tight turns and pulling on the cable body.
Feature support is end to end. HDR, VRR, ALLM, eARC, HDCP and audio formats operate only when supported and enabled across every relevant device.
Adapters can lower the ceiling. USB-C docks, DisplayPort adapters, AV receivers, splitters, switches and wall plates may cap bandwidth or omit features even if this cable is capable.
At a glance.
- Brand
- UGREEN
- Model / SKU
- 70321 / 70321
- Product type
- Passive copper HDMI cable
- Cable length
- 2 metres
- Connectors
- Full-size HDMI Type-A male to HDMI Type-A male
- Direction
- Non-directional: either plug may face source or display
- Maximum stated bandwidth
- Up to 48Gbps
- Maximum stated 8K mode
- Up to 8K at 60Hz with a fully compatible chain
- Maximum verified 4K mode
- Up to 4K at 120Hz with a fully compatible chain
- HDR / video features
- Dynamic HDR, Dolby Vision, HDR10+, VRR, ALLM, QFT, QMS, 3D
- Audio return / audio formats
- eARC
- Outer construction
- Nylon-braided outer jacket
- Power
- No external power; passive copper construction
- Certification wording
- No official certification claim is made unless the supplied retail packaging carries a matching Ultra High Speed HDMI label and valid QR code.
- In the box
- 1 × UGREEN 70321 2m passive copper HDMI cable
Verified exact-model details
Verified in the box
Televisions, monitors, consoles, computers, adapters, receivers, soundbars and other devices shown in lifestyle images are not included. Package artwork may vary; verify SKU 70321 and 2m on the received product.
Questions buyers ask.
Does model 70321 support 8K at 60Hz?
It is listed for up to 8K60 when the source, display, HDMI ports, content path, firmware and selected signal format all support it.
What is the verified maximum 4K mode?
The verified ceiling is 4K at 120Hz. Actual availability depends on the source/GPU, display, port, colour format, settings and content.
Does 48Gbps guarantee the highest mode?
No. It is the cable’s maximum stated capacity. The full chain negotiates the actual link, and any lower-capability device or adapter can reduce it.
Is this cable directional?
No. It is a passive copper cable, so either full-size HDMI plug can be connected to the source or display.
Can it give a console 4K at 240Hz?
No 4K240 capability is claimed for this exact cable. A cable also cannot make a console or game output a refresh rate it does not support.
Does it support HDR or Dolby Vision?
It can carry the verified formats listed for this model, including Dynamic HDR, Dolby Vision, HDR10+.
Can I use eARC with a soundbar?
Yes, when the television and soundbar or receiver both have compatible eARC ports.
Will it work with older HDMI equipment?
Yes, at the highest mode mutually supported by all connected devices. An older port does not gain newer HDMI capabilities by changing only the cable.
Can it connect directly to USB-C or DisplayPort?
No. Both ends are full-size HDMI Type-A male. A separate compatible adapter or dock is required, and that device may limit resolution or refresh rate.
What should I check if the high-refresh mode is missing?
Use the correct source and display ports, enable enhanced HDMI input mode, update firmware, set the desired mode in the source and remove intermediate adapters or switches for testing.