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.

Dbillionda Cat 8 Ethernet Cable 40gbps 2000mhz 10ft Supports Cat7

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

⚡ Connect faster, game harder, stream smoother — don’t get left behind!

BLAZING 40 GBPS SPEED - Experience ultra-fast data transfer for lag-free gaming and seamless 8K streaming.
FUTURE PROOF BANDWIDTH - Supports up to 2000 MHz frequency, ready for next-gen network demands.
ROCK SOLID SIGNAL INTEGRITY - Double-shielded 26AWG cable minimizes interference for stable, low-latency connections.
UNIVERSAL RJ 45 COMPATIBILITY - Plug & play with all your devices—from routers to gaming consoles and smart TVs.
BUILT FOR ALL WEATHER DURABILITY - Heavy-duty PVC jacket ensures reliable outdoor and indoor use, rain or shine.

The DbillionDa Cat8 Ethernet Cable delivers industry-leading 40Gbps speeds and 2000MHz bandwidth through a heavy-duty, weatherproof 26AWG design. Its double-shielded construction ensures minimal interference for ultra-stable, low-latency connections, perfect for professional-grade gaming, 4K/8K streaming, and high-speed home or office networks. With gold-plated RJ45 connectors and universal compatibility, this 10-foot cable is engineered for both indoor and outdoor use, built to withstand harsh weather while future-proofing your network setup.

Specifications

ASIN	B07QQK2FM1
Best Sellers Rank	#2 in Cat 7 Ethernet Cables
Brand	DbillionDa
Brand Name	DbillionDa
Cable Type	Ethernet, Network, RJ45
Color	Black
Compatible Amazon Tablet Models	Amazon Fire HD 10 11th Generation, Amazon Fire HD 10 13th Generation, Amazon Fire HD 10 5th Generation, Amazon Fire HD 10 7th Generation, Amazon Fire HD 10 9th Generation, Amazon Fire HD 10 Kids 11th Generation, Amazon Fire HD 10 Kids 13th Generation, Amazon Fire HD 10 Kids 7th Generation, Amazon Fire HD 10 Kids 9th Generation, Amazon Fire HD 10 Kids Pro 11th Generation, Amazon Fire HD 10 Kids Pro…
Compatible Devices	Any device with an RJ45 port, including Monitor, Patch Panels, Switches, Laptop, Scanner, Tablet, Notebooks, PCs, Network Cards, Macs, PoE Devices, Routers, Modems, Printer Smart Watch, Splitters, PS3, PS4, PS5, Server, Projector, DVD Player Compatible Devices Any device with an RJ45 port, including Monitor, Patch Panels, Switches, Laptop, Scanner, Tablet, Notebooks, PCs, Network Cards, Macs, PoE Devices, Routers, Modems, Printer Smart Watch, Splitters, PS3, PS4, PS5, Server, Projector, DVD Player See more
Compatible Phone Models	VoIP phones
Connectivity Technology	Ethernet
Connector Gender	Male-to-Male
Connector Type	Ethernet, Network, Rj45
Customer Package Type	Rigid box or coiled in protective tubing
Customer Reviews	4.7 out of 5 stars 69,420 Reviews
Data Transfer Rate	40 Gigabits Per Second
Ethernet Cable Category	Cat 8
Frequency	2000 MHz
Gauge	26
Indoor Outdoor Usage	Indoor, Outdoor
Item Length	10 Feet
Item Shape	Round
Item Weight	3.88 Ounces
Manufacturer	DbillionDa
Model	cat8 10ft 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	INTERNET CABLE
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
Special Feature	Heat Resistant/ High Speed/ UV Resistant/ Water Resistant/ Waterproof/ Weatherproof
UPC	741416155945
Unit Count	10 Feet

Reviews

J**S

10.04.2026

B**L

23.02.2026

@**S

19.04.2026

L**5

20.03.2026

J**N

6.01.2026

K**R

27.03.2026

K**A

28.04.2026

C**P

3.01.2026

M**E

11.07.2023

C**N

7.10.2024

S**S

3.08.2024

C**S

5.03.2026

S**T

24.08.2023

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DbillionDa Cat 8 Ethernet Cable 40Gbps 2000MHz, 10FT Supports Cat7 Cat6 Cat5e Cat5, High-Speed RJ45 Cable, Heavy-Duty Indoor/Outdoor, Gold-Plated, Weatherproof & UV-Resistant for Gaming, PC, Router

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