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Cat 8 is not an HDMI cable. Cat 8 is a shielded Ethernet cable with RJ45 connectors for computer networks, while HDMI cables carry digital audio and video between devices such as a TV and a game console. “Gold-plated” describes connector material on either type of cable; it does not identify a network category, HDMI version or performance level.
What Cat 8 actually is
Cat 8 is a copper Ethernet cabling category designed for high-speed data networks. The StarTech Cat 8 datasheet specifies operation at 10, 25 and 40Gbps, 2,000MHz bandwidth, shielded construction and support for PoE++ up to 100W. Its connectors are RJ45 plugs, the same basic connector shape used by many older Ethernet categories.
Those ratings describe the cable’s capability under the conditions and compatible equipment covered by the specification. A Cat 8 patch cable cannot make a router, switch, network card or internet service operate faster than its own limits. In a typical home, the practical speed may still be 1Gbps or less because the broadband plan and active network hardware are the bottleneck.
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How HDMI cable classes differ
HDMI is a separate audio/video interface. HDMI Licensing Administrator, Inc. identifies official cable names including Standard HDMI, Premium High Speed HDMI, Ultra High Speed HDMI and Ultra96 HDMI. These names describe tested HDMI capabilities, not Ethernet categories.
#1 Best Overall
- 40 Gbps 2000 Mhz High Speed: The Cat 8 ethernet cable support max. 40 Gbps data transfer and 2000 MHz Brandwith, ideal for gaming and streaming, greatly improving upload and download speed, sound, image and resolution quality
- Excellent Anti-interference: The ethernet cable comes with 4 shielded foiled twisted pairs (F/FTP), pure copper core and gold-plated RJ45 connector, reducing interference, noise and crosstalk, making network speed faster and more stable
- Marvelous Durability: Internet cable wrapped with quality cotton braided cord, which makes the LAN cable stronger and more durable. The test proves that this internet cable can be bent at least 10000 times without broken, very suitable for long-term use
- PoE Supported: All lengths of ethernet cord can support the PoE power supply function except 65ft. You don't need additional power supply when installing a PoE camera, which is very convenient and safe
- Wide Compatibility: With the RJ45 Connector, network cable can be perfectly compatible with computers, laptops, modems, routers, PS5, X-Box and other networking devices. It can also be fully backward compatible with Cat7, Cat6e, Cat6, Cat5e, Cat5
| Cable family | Connector and purpose | Published capability | What to verify |
|---|---|---|---|
| Cat 8 Ethernet | Shielded RJ45; network links and PoE++ | 10/25/40Gbps, 2,000MHz; up to 100W PoE++ in the cited StarTech specification | RJ45 compatibility, shielding, equipment speed and PoE requirements |
| Standard HDMI | HDMI connector; basic digital audio/video | Baseline HDMI cable class | Whether it meets the display’s resolution and refresh requirements |
| Premium High Speed HDMI | HDMI connector; higher-bandwidth audio/video links | Tested for full 18Gbps bandwidth | Official Premium High Speed authentication label |
| Ultra High Speed HDMI | HDMI connector; advanced display links | Up to 48Gbps under the cited HDMI specifications | Official Ultra High Speed certification label and QR verification |
| Ultra96 HDMI | HDMI connector; newest listed high-bandwidth class | Up to 96Gbps under the cited HDMI specifications | Official Ultra96 designation and label |
HDMI LA cautions that resellers may use varied marketing language instead of the official cable names. Its certification labels and QR verification are therefore more useful shopping signals than phrases such as “gold HDMI,” “8K ready” or “premium cable.”
What gold plating does—and does not—tell you
Gold-plated contacts can resist corrosion and are a connector-construction choice. They do not turn an Ethernet cable into HDMI, raise an HDMI cable to a newer class, increase internet speed or prove that a cable passed a bandwidth-certification test. A properly made cable with another contact finish can perform correctly; the signal specification, construction, length and certified testing matter more than the color of the contacts.
Rank #2
- 40 Gbps 2000 Mhz High Speed: The Cat 8 ethernet cable support max. 40 Gbps data transfer and 2000 MHz Brandwith, ideal for gaming and streaming, greatly improving upload and download speed, sound, image and resolution quality
- Excellent Anti-interference: The ethernet cable comes with 4 shielded foiled twisted pairs (F/FTP), pure copper core and gold-plated RJ45 connector, reducing interference, noise and crosstalk, making network speed faster and more stable
- Marvelous Durability: Internet cable wrapped with quality cotton braided cord, which makes the LAN cable stronger and more durable. The test proves that this internet cable can be bent at least 10000 times without broken, very suitable for long-term use
- PoE Supported: All lengths of ethernet cord can support the PoE power supply function except 65ft. You don't need additional power supply when installing a PoE camera, which is very convenient and safe
- Wide Compatibility: With the RJ45 Connector, network cable can be perfectly compatible with computers, laptops, modems, routers, PS5, X-Box and other networking devices. It can also be fully backward compatible with Cat7, Cat6e, Cat6, Cat5e, Cat5
Choose the cable for the connection you are making
For a router, switch or computer
- Confirm that the device has an RJ45 Ethernet port. An HDMI socket is not interchangeable with it.
- Choose Cat 8 Ethernet RJ45 cable if you need its high-speed, shielded design or PoE++ capacity. Otherwise, select an Ethernet category that matches the ports and installation.
- Check cable length and routing. Shielding and correct termination matter in electrically noisy environments, and every connected component must support the target speed.
- After installation, check the negotiated link rate in the operating system or switch interface. The displayed rate, not the package wording, shows what the connected hardware established.
For a 4K TV, console, receiver or streaming box
- Identify the features you need: resolution, refresh rate, HDR format, variable refresh rate and eARC.
- Select the HDMI class that the source and display require. For links needing up to 18Gbps, look for the Premium High Speed HDMI certification label; newer, higher-bandwidth setups may require Ultra High Speed or Ultra96 equipment.
- Verify the label and QR information rather than relying on “gold-plated” or other reseller-created descriptions.
- Connect the source directly to a compatible HDMI input when troubleshooting. An Ethernet cable cannot carry the HDMI audio/video signal.
Does HDMI with Ethernet replace a network cable?
HDMI LA describes “Standard HDMI Cable with Ethernet” as a Standard HDMI cable with an additional, dedicated HDMI Ethernet Channel for device networking. This channel works only when the connected devices support that HDMI feature and use it as designed. It is not an RJ45 network lead for a router or switch, and it does not provide the same general-purpose cabling function as Ethernet.
Is Cat 8 worth buying for home networking?
Cat 8 is worthwhile when the installation has compatible multi-gigabit equipment, a need for strong shielding or a PoE++ requirement approaching the cited 100W limit. For ordinary gigabit internet and short device-to-router links, its 40Gbps headline rating may provide no practical improvement. Consider the ports, switch backplane, network adapters, cable route and upgrade plans before paying for a higher category.
Rank #3
- Designed for Outdoor & Direct Burial Installations – Heavy-duty double-shielded Cat8 Ethernet cable minimizes EMI/RFI interference and delivers stable long-distance performance. Waterproof, anti-corrosion PVC jacket allows safe direct burial and reliable use in outdoor or indoor environments.
- 26AWG for Stable High-Load Networks – Thicker 26AWG conductors provide faster, more stable data transmission than standard 32AWG cables. Ideal for high-performance home networks, gaming setups, smart homes, and data-intensive applications.
- F/FTP Shielding & Hyper-Speed Performance: Cat8 Ethernet cable constructed with 4 shielded foiled twisted pairs and 26AWG OFC conductors; supports bandwidth up to 2000 MHz and data transmission speeds up to 40 Gbps, effectively reducing signal interference and ensuring stable connections. Ideal for low-latency gaming, 4K/8K streaming, and high-speed internet connections.
- RJ45 Connectors & Wide Compatibility: Cat8 Ethernet cable with two shielded RJ45 connectors; compatible with networking switches, IP cameras, routers, Nintendo Switch, modems, PS3, PS4, Xbox, patch panels, servers, smart TVs, and more; works with Cat7, Cat6, Cat5e, and Cat5 devices
- Weatherproof & UV Resistant: Outdoor-rated Cat8 Ethernet cable with UV-resistant PVC jacket; withstands direct sunlight, extreme cold, humidity, and hot weather; anti-aging and durable; Includes 18-month support.
The simplest rule is to shop by interface first: buy shielded Cat 8 RJ45 Ethernet for a wired network, and buy the certified HDMI class required by the display equipment. Treat gold plating as a minor material detail, never as proof of speed or compatibility.
Quick Recap
Best Value
- Cat 8 Speed, Cat 5/5e Value Enjoy Cat 8 Ethernet cable performance at a Cat 5/5e-level value. With up to 40Gbps speed and 2000MHz bandwidth, this high speed internet cable delivers more bandwidth than standard Cat 5 and Cat 5e cables, helping support smooth gaming, streaming, video calls, large file transfers and everyday wired network use.
- 40Gbps Speed, Wide Compatibility This Cat 8 Ethernet cable supports up to 40Gbps data transfer and 2000MHz bandwidth for fast, reliable internet performance. Standard RJ45 connectors are backward compatible with Cat7, Cat6, Cat6a and Cat5e devices, including routers, modems, switches, gaming PCs, PS5, PS4, Xbox, smart TVs, laptops and printers.
- Stable U/FTP Shielding Each of the 4 twisted pairs is individually wrapped with aluminum foil to help reduce crosstalk, noise, and signal interference. Combined with RJ45 connectors on both ends, the U/FTP design helps maintain cleaner signal transmission for a stable and reliable wired network connection.
- Nylon Braided Durability The nylon braided jacket adds everyday durability while keeping the cable flexible and easy to route. Reinforced construction helps the cord handle bending, pulling and frequent plugging, making it a reliable choice for desks, gaming rooms, home offices and long-term network setups.
- 50ft Reach for More Setups The 50 ft length makes it easier to connect devices across rooms, along walls, under desks or around corners. Great for router-to-PC connections, modem-to-TV setups, gaming consoles, workstations, printers and other home network equipment that needs a longer Ethernet cable.
Rank #4
- 🔌【Higher Speed】Cat 8 Shielded Ethernet Cable provides performance of up to 40000 Mbps (or to 40 Gigabit per second); High bandwidth of up to 2000 MHz, high-speed data transfer for server applications, cloud storage, online HD video streaming, and gaming without any lag or stop. With Orbram Cat8 ultra-fast patch cord, you won't worry about waste time for waiting.
- 🔌【Anti-Interference Design】Orbram professional network cables are made of 4 shielded foiled twisted pair(S/FTP) copper wires with 24K gold-plated RJ45 connectors on each end. Compared to the Cat 7 network Ethernet cable, the additional shielding and improved quality in twisting of the wires provides better protection from crosstalk, noise, and interference that can degrade the signal quality. This will increase the reliability and accuracy of the data transfer.
- 🔌【More Convenient】Cat 8 rj45 cables are in flat design to avoid tangled cords and save space. Flat Lan cable is super flexible to make it easier to hide or run along any surface. You can easily and immediately install the cable run along walls, follow edges or corners when you receive the durable gigabit ethernet cable.
- 🔌【More Applications】 50ft flat Cat 8 Computer Cables are widely compatible with Cat5, Cat5e, Cat6, and Cat6A Ethernet cables. Provides universal connectivity for Televisions, Xbox One, Xbox 360, Switches, Routers Modems, PS3, PS4, Computer, Laptop, Printers, Network Printers, Network Attached Storage Device and other networking equipment.
- 🔌【Incredible Durable】 Double braided nylon exterior make Cat8 Ethernet Cable more durable, flexible and tangle-free. And this sturdy cat 8 patch cord can be bended at least 10 thousands times, so that you can reuse it without any concerns.
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