Ignore the erroneous answer that Cat 8 is a marketing gimmick. As noted by someone else, Cat 8 is rated for 40Gbps/2000Mhz which most people, especially home users, cannot utilize at this time. If you want to future proof your wiring, get Cat 8 but at the speeds you mention, a decent shielded Cat 5e or Cat 6 or 6a will work just fine. You'll see no speed boost just from a "faster" cable. Avoid Cat 7 and 7A due to finicky proprietary connector issues.

Does this have to plug into the router or can it plug into a Wifi extender?

If your wifi extender is set to allow connections to your main access point via the Ethernet port, then yes. It will work just like any other Ethernet cable. If you have tried a different cable and it did not work, your extender is either not setup properly to allow this or it is not capable of it.

will this cable make a difference if I'm already hitting max speeds with my cat6? my interenet speed plan is 400mpbs

Cat6 or Cat6a is all you need. Any latency you feel is either the port or you provider. CAT8 is bs, save your money.

Does this cable have any markings on the cable itself that identify it as category 8?

Other than Cat8 written in white on the actual cable. There are no other markings on it.

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DbillionDa Cat8 Ethernet Cable, Outdoor&Indoor, 3FT Heavy Duty Direct Burial High Speed 26AWG Cat8 LAN Network Cable 40Gbps, 2000Mhz with Gold Plated RJ45 Connector, Weatherproof for Router

DbillionDa Cat8 Ethernet Cable, Outdoor&Indoor, 3FT Heavy Duty Direct Burial High Speed 26AWG Cat8 LAN Network Cable 40Gbps, 2000Mhz with Gold Plated RJ45 Connector, Weatherproof for Router

Product ID: 323816764

Details

Brand
DbillionDa
Cable type
Ethernet RJ45
Connector type
Ethernet Rj45
Special features
Heat High UV

⚡40Gbps blazing speed

🌧️Waterproof & UV resistant

🛡️F/FTP double shielding

¥3359

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Description

🚀 Future-Proof Your Network with DbillionDa Cat8 – Speed, Strength, and Style!

HEAVY DUTY BUILD - Thicker 26AWG cable with gold-plated connectors guarantees longevity and premium signal integrity.
BLAZING 40 GBPS SPEED - Experience ultra-low latency and seamless 4K/8K streaming with lightning-fast data transfer.
ALL WEATHER DURABILITY - Waterproof, UV-resistant PVC jacket ensures flawless performance indoors or buried outdoors.
MILITARY GRADE SHIELDING - F/FTP shielding and 26AWG OFC conductors eliminate interference for rock-solid, stable connections.
UNIVERSAL RJ 45 COMPATIBILITY - Plug & play with all your devices—from gaming consoles to smart home hubs—future-proof your network.

The DbillionDa Cat8 Ethernet Cable delivers ultra-high-speed data transfer up to 40Gbps and 2000MHz bandwidth, engineered with 4 shielded twisted pairs and thick 26AWG OFC conductors. Designed for both indoor and direct burial outdoor use, its waterproof and UV-resistant PVC jacket ensures durability in any environment. Featuring gold-plated RJ45 connectors, it offers broad compatibility with gaming consoles, routers, and smart devices, making it the ultimate cable for professional-grade, low-latency networking.

Specifications

ASIN	B089SX7WYM
Best Sellers Rank	#39,153 in Computers ( See Top 100 in Computers ) #86 in Cat 7 Ethernet Cables
Brand Name	DbillionDa
Cable Type	Ethernet, Network, RJ45
Color	Black
Compatible Devices	Any device with an RJ45 port, including Monitor, Notebooks, PCs, Network Cards, Macs, PoE Devices, PS3, PS4, PS5, Server, Projector, DVD Player, Patch Panels, Switches, Laptop, Scanner, Tablet, Routers, Modems, Printer Smart Watch, Splitters
Compatible Phone Models	VoIP phones
Connectivity Technology	Ethernet
Connector Gender	Male-to-Male
Connector Type	Ethernet, Network, Rj45
Customer Package Type	coiled in protective tubing
Customer Reviews	4.7 4.7 out of 5 stars (25,231)
Data Transfer Rate	40 Gigabits Per Second
Ethernet Cable Category	Cat 8
External Testing Certification	Não aplicável
Frequency	2000 MHz
Gauge	26.0
Indoor Outdoor Usage	Indoor, Outdoor
Item Length	36 Inches
Item Shape	Round
Item Weight	1.93 Ounces
Manufacturer	DbillionDa
Model	cat8 3ft ethernet cable
Model Name	DbillionDa Cat8 Ethernet Cable
Number of Items	1
Number of Pins	8
Other Special Features of the Product	Heat Resistant/ High Speed/ UV Resistant/ Water Resistant/ Waterproof/ Weatherproof
Outer Material	Polyvinyl Chloride (PVC)
Part Number	1
Recommended Uses For Product	Any device with an RJ45 port, including Routers, Monitor, Modems, Printer, Smart Watch, PS3, PS4, PS5, Server, Projector, DVD Player, Patch Panels, Switches, Laptop, Scanner, Tablet, Notebooks, PCs, Network Cards, Macs, PoE Devices, Xbox Series X, Xbox Series S, Xbox One, VR, PlayStation Other Video Game Consoles, TVs, Hubs, Motherboards, RJ45 Adapter
Specification Met	EIA, TIA
UPC	608410904293
Unit Count	3 Meters

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¥3359

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

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