Is this compatible for HDR?

Yes. These are compatible for throughput up to 8K with HDR.

It says it supports arc, but does not mention earc. does it support earc?

Use a PC monitor in 8k HDMI 2.1 in IMAX mode if the audio and video outputs properly then it's earc. Most games are good for testing for this feature as consoles don't have the ability to Id this need yet or smart TVs information section in the android tv settings menu. Also try a wireless HDMI connector to see if it's earc capable as the electric needs are more than standard HDMI cables for high bandwidth high speed internet 4k cable tv content streaming at active 10-bit video quality from such cameras in the near future as they want to start phasing out the eithernwt wire for HDMI cables also using eithernet soon here like with tb4 usbc only for power plugs and data cables for server workstation needs during the chip shortage retooling transition as well hey get rid of excess I/o ports are on mobos for a simplified consolidated manufacturing process soon.

Does this work with 4k 60hz?

yes, 4K up to 144hz or 8K up to 60hz

Is this 8k @ 120hz, 2.1 uhd dolby vision & atmos capable with earc?? and if not what is the return policy? bcuz nothing less is acceptable to properly

These do 8K @ 60Hz with Dolby Vision, or do 4K @ 120Hz and VRR, but depending on the TV you can't really do both. Sony X85J in particular will only do 4K @ 60Hz with Dolby Vision or 4K @ 120 Hz with VRR(though advanced Dolby Vision Game Mode may be coming to many new TVs).

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Amazon Basics HDMI 2.1 Cable Ultra High Speed, 8K@60Hz, 4K@120Hz, 48 Gbps, 1.8 m, Black

Product ID: 324349989

Details

Brand
Amazon Basics
Cable type
HDMI
Compatible devices
Monitor
Connector type
HDMI
Special feature
Ultra High

⚡48Gbps ultra-high bandwidth

📺8K@60Hz & 4K@120Hz video support

🔗Gold-plated corrosion-resistant connectors

NZ$18

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎬 Elevate your entertainment with ultra-speed HDMI power!

ETHERNET ARC ENABLED - Integrated Ethernet and Audio Return Channel for streamlined connectivity and immersive sound.
PLUG PLAY SIMPLICITY - No drivers or setup needed—just connect and elevate your media experience instantly.
FUTURE PROOF 8 K 4 K READY - Stay ahead with support for next-gen 8K@60Hz and 4K@120Hz displays.
BLAZING FAST 48 GBPS TRANSFER - Experience seamless ultra-high-speed data flow for crystal-clear visuals and audio.
DURABLE GOLD PLATED CONNECTORS - Corrosion-resistant plugs ensure long-lasting, reliable signal transmission.

The Amazon Basics HDMI Cable delivers certified ultra high speed 48Gbps bandwidth, supporting stunning 8K@60Hz and 4K@120Hz video resolutions. Featuring durable gold-plated connectors and Ethernet-ready design, it ensures reliable, future-proof connectivity for all your high-definition devices. Perfect for professionals and enthusiasts seeking flawless, plug-and-play performance.

Specifications

ASIN	B08BS29VG4
Best Sellers Rank	26 in HDMI Cables
Brand	Amazon Basics
Cable Type	HDMI
Colour	Black
Compatible Devices	Monitor
Compatible Phone Models	No Compatible Phone Models
Connectivity Technology	HDMI
Connector Gender	Male-to-Male
Connector Type	HDMI
Country Of Origin	Philippines
Customer Package Type	Standard Packaging
Customer Reviews	4.6 4.6 out of 5 stars (15,975)
Data Transfer Rate	48 Gigabits Per Second
Ethernet Cable Category	Cat 5e
Frequency	60 GHz
Global Trade Identification Number	00190653004934
Included Components	High-Speed 8K HDMI Cable, 1.8m
Indoor Outdoor Usage	Indoor
Item Shape	Round
Item Weight	88 Grams
Manufacturer	Amazon
Manufacturer Part Number	ADHDTV25004
Model Name	HDMI2.1-BLACK-6FT-BASIC
Model Number	ADHDTV25004
Number of Items	1
Number of Pins	19
Other Special Features of the Product	Ultra High Speed
Outer Material	Polyvinyl Chloride (PVC)
Recommended Uses For Product	Tablet
Specification Met	RoHS
UPC	192835003223
Unit Count	1.0 count

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