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expired Posted by JZ1989 • Jun 8, 2021
expired Posted by JZ1989 • Jun 8, 2021

UGREEN Cat 8 Ethernet Cable 6FT 40Gbps 2000Mhz High Speed $5.24 + Free Shipping w/ Amazon Prime or Orders $25+

$5.24

$6.99

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UGREEN via Amazon [amazon.com] has Cat 8 Ethernet Cable 6FT 40Gbps 2000Mhz High Speed for $5.24. Shipping is Free w/ Amazon Prime or Orders $25+.
  • Promo code UGREENSD102 for all deals below
UGREEN Cat 7 Ethernet Cable 10FT [amazon.com] for $5.24

UGREEN Cat 7 Ethernet Cable 6FT [amazon.com] for $5.24
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UGREEN via Amazon [amazon.com] has Cat 8 Ethernet Cable 6FT 40Gbps 2000Mhz High Speed for $5.24. Shipping is Free w/ Amazon Prime or Orders $25+.
  • Promo code UGREENSD102 for all deals below
UGREEN Cat 7 Ethernet Cable 10FT [amazon.com] for $5.24

UGREEN Cat 7 Ethernet Cable 6FT [amazon.com] for $5.24

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Jun 9, 2021
3,657 Posts
Joined Nov 2012
Jun 9, 2021
WingsOfF
Jun 9, 2021
3,657 Posts
Sorry to put this up in a UGREEN shill thread but I found this 15ft flat braided Cat 7 at $5 to be an excellent deal at the moment. No affiliation with the company. was just looking for flat braided cables.

https://www.amazon.com/Ethernet-M...B08LYWNDBD
Jun 9, 2021
571 Posts
Joined Apr 2014
Jun 9, 2021
ryanchu06
Jun 9, 2021
571 Posts
Quote from necrodiety :
I have ATT fiber (1gb asymetric). I can tell you that the ATT installers are using plain ol cat 5e for their modem runs. I watched the guy pull it. From the modem, I do run cat 6 to my firewall and I do get my full bandwidth. But their fiber to modem run was about 60ft of 5e here and I get near gig speed with no issue. So 5e should work just fine for 1Gbps.

My point though was that no one is going to get 40Gbps of speed on a copper ethernet cable. I mean, we are just now starting to get 2.5Gbps nics out there. There is no 40Gpbs copper ethernet adapters out there so it seems silly to market a speed that no one can get.
I agree cuz I am an at&t installer
Last edited by ryanchu06 June 10, 2021 at 12:59 PM.
2
Jun 9, 2021
350 Posts
Joined May 2009
Jun 9, 2021
upsidedownfunnel
Jun 9, 2021
350 Posts
Quote from Ebbi :
The guage wire of the matched pairs matters. I agree on not hitting 40Gbps, but I also know from installing ethernet cable (as a job, and now on the side) for 20+ years that yes... the cable matters. Cat 5e is fine if you're rocking out your 100 Mbps Comcast/Spectrum internet over wifi and just need the connection from router to (Networking/WiFi)device.

But if you're rocking some of the new(ish) 1 or 2 Gbps Fiber connections, you minimally want Cat 6 installed, and especially if you're hardwiring anything. Go ahead and go run some speedtests.

Don't take my word for it, you can find all the info you need all over the internet.
While I do agree you should install Cat6 if you're running in wall cabling for sure (and double or triple up on everything), Cat5e for most home distances is sufficient for 1gbps speeds.
Jun 9, 2021
24 Posts
Joined Jan 2021
Jun 9, 2021
BrightWealth901
Jun 9, 2021
24 Posts
Quote from necrodiety :
I have ATT fiber (1gb asymetric). I can tell you that the ATT installers are using plain ol cat 5e for their modem runs. I watched the guy pull it. From the modem, I do run cat 6 to my firewall and I do get my full bandwidth. But their fiber to modem run was about 60ft of 5e here and I get near gig speed with no issue. So 5e should work just fine for 1Gbps.

My point though was that no one is going to get 40Gbps of speed on a copper ethernet cable. I mean, we are just now starting to get 2.5Gbps nics out there. There is no 40Gpbs copper ethernet adapters out there so it seems silly to market a speed that no one can get.
You need cat 6 for anything over 1 gbps, up to 10 gbps. I have racks filled with 10 gig switches/servers and cat 6 is great. I only use fiber for long hauls. Traditionally fiber has slightly lower latencies than copper at 10 gig speeds, but the difference shouldn't matter outside of very specialized use cases.... quality cat 5e/6 cables will usually have slightly better packet loss stats because they have better shielding, but again you won't notice in real world, unless you check your hw iface stats. The longer the cable the more important the shielding. I haven't seen any switches/eth cards on the market that use copper for speeds over 10 gig yet, but also haven't looked since my last data center build out and that was awhile ago. It's hard to say whether it will ever be a thing. Also, beware, I've read that some cat 7/8 cables have a special connector that won't work in standardized rj-45 ports, but that was before cat 7/8 standards were finalized. Not sure if standards are final, and what the outcome was.

Edit: I meant SFP not fiber. technically SFP can use DAC cables which are copper.
Last edited by BrightWealth901 June 9, 2021 at 02:18 PM.
1
Jun 9, 2021
11 Posts
Joined Jul 2014
Jun 9, 2021
ElbertJ3685
Jun 9, 2021
11 Posts
These are only jumpers……. not in wall cable runs. If your buying a new Ethernet jumper, why not future proof. No you don't need it, but for $5 it's worth it for me. There are people who get 1.2GB and 2GB data in their homes now. You'll need a 2.5G or greater nic to get those speeds. I ran a 10ft cat8 jumper from my Xfinity XB7 Gateway to my CPU and I consistently pull 1.4 to 1.5 gigs down. Yeah, I can get the same speed with a cat6e jumper, but it's basically the same price as this one.
Jun 9, 2021
379 Posts
Joined Aug 2018
Jun 9, 2021
GeekNextDoor
Jun 9, 2021
379 Posts
Wanna see some real speed?
3
Jun 9, 2021
11 Posts
Joined Jul 2014
Jun 9, 2021
ElbertJ3685
Jun 9, 2021
11 Posts
Quote from necrodiety :
I have ATT fiber (1gb asymetric). I can tell you that the ATT installers are using plain ol cat 5e for their modem runs. I watched the guy pull it. From the modem, I do run cat 6 to my firewall and I do get my full bandwidth. But their fiber to modem run was about 60ft of 5e here and I get near gig speed with no issue. So 5e should work just fine for 1Gbps.

My point though was that no one is going to get 40Gbps of speed on a copper ethernet cable. I mean, we are just now starting to get 2.5Gbps nics out there. There is no 40Gpbs copper ethernet adapters out there so it seems silly to market a speed that no one can get.
I was an AT&T tech for over 7 years, did hundreds of fiber installs and techs used what ever they are given you the company. They had not upgraded their bulk cable to cat6 as of a year or so ago when I moved on to another company. However we were using the pre-made cat6 jumpers 4-5 years ago, if your manager ordered them that is.

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Jun 9, 2021
711 Posts
Joined Feb 2006
Jun 9, 2021
oxyi
Jun 9, 2021
711 Posts

Our community has rated this post as helpful. If you agree, why not thank oxyi

Quote from necrodiety :
40Gpbs over copper ethernet? Yeah, that doesn't exist. You're just buying a cable with a braided jacket. Save your cash and use any standard CAT5e cable.
40gb baseT does exist. You can do interconnect or hook up to supported devices.




40GBASE-T is a port type for 4-pair balanced twisted-pair Cat.8 copper cabling up to 30 m defined in IEEE 802.3bq.[118] IEEE 802.3bq-2016 standard was approved by The IEEE-SA Standards Board on June 30, 2016.[119] It uses 16-level PAM signaling over four lanes at 3,200 MBaud each, scaled up from 10GBASE-T.
1
Jun 9, 2021
1,751 Posts
Joined Aug 2011
Jun 9, 2021
supersteals
Jun 9, 2021
1,751 Posts
Many comments around Cat5e usage - Cat5e standards are one thing, but quality of cable matters as well. I had purchased a generic 50ft Cat5e cable to run between my access point and Router.. I kept getting speed just around 100 Mbps on WiFi. . It took a while to realize this because my internet is 200 Mbps, and I chalked up the speed to WiFi issue. One day I noticed that the AP was only reporting 100Mbps connection speed.. and after troubleshooting realized that this was due to the cable.
I purchased a yet another generic Cat6 cable (with better reviews on Amazon) and I finally get 200 Mbps on WiFi.

So cable quality matters, now if the run was say only 10 ft, I am pretty sure Cat5e would have worked just fine around 200 Mbps, but not if I had internet speed of 1Gbps…
Jun 9, 2021
67 Posts
Joined Jul 2015
Jun 9, 2021
rockdd
Jun 9, 2021
67 Posts
Technically ANSI/TIA spec compliant CAT 8 copper cabling can support 40Gbps up to about 30m. Designed for datacenter usage (e.g. rack to rack).

Also, spec compliant copper cabling allows for CAT 5e up to 100m at 1Gbps (2.5Gbps & 5Gbps also possible due to new spec lowering the signaling rate). CAT 6A is designed for up to 100m at 10Gbps. CAT 6 is generally not deployed if 10Gbps support is planned because it's only designed for 10Gbps at reduce lengths (~55m). CAT 6A or fiber would be the preferred choice for 10Gbps.
Last edited by rockdd June 9, 2021 at 03:10 PM.
Jun 9, 2021
814 Posts
Joined Dec 2012
Jun 9, 2021
Byroncard
Jun 9, 2021
814 Posts
I'm just getting Starlink 100-300mbs (I think) What do I need to run cable throughout the house?
Jun 9, 2021
772 Posts
Joined Oct 2014
Jun 9, 2021
jlong129
Jun 9, 2021
772 Posts
Quote from necrodiety :
40Gpbs over copper ethernet? Yeah, that doesn't exist. You're just buying a cable with a braided jacket. Save your cash and use any standard CAT5e cable.
You had me until you mentioned cat5e.
2
Jun 9, 2021
735 Posts
Joined Apr 2014
Jun 9, 2021
MichealM7200
Jun 9, 2021
735 Posts
I would have to assume that most people wouldnt be able to get anything over 1gbps over this 40gbps cable, as the copper ports on your router or switch is only capable of 1gbps. enterprise grade switches that support 10gbase-T are stupid expensive and I doubt anyone has one for home use. if there is a 40gbase-T switch out there, ive never seen it, but I bet it's still out of the retail price range
Jun 9, 2021
2,976 Posts
Joined Nov 2006
Jun 9, 2021
vnw98
Jun 9, 2021
2,976 Posts
Quote from Ebbi :
The guage wire of the matched pairs matters. I agree on not hitting 40Gbps, but I also know from installing ethernet cable (as a job, and now on the side) for 20+ years that yes... the cable matters. Cat 5e is fine if you're rocking out your 100 Mbps Comcast/Spectrum internet over wifi and just need the connection from router to (Networking/WiFi)device.

But if you're rocking some of the new(ish) 1 or 2 Gbps Fiber connections, you minimally want Cat 6 installed, and especially if you're hardwiring anything. Go ahead and go run some speedtests.

Don't take my word for it, you can find all the info you need all over the internet.
I have cat 5e in my walls builder installed. I have my own local network all wired and using ubiquity wired and wireless. I'm not an expert by no means but I hit 1gbps speeds locally. My internet I have a 400 mbps line and easily hit that wirelessly on my WiFi 6 router. If you need to do it now and cat 6 can be found for same price then by means do that but no need to rip out cat5e to install cat 6z

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Jun 9, 2021
3,114 Posts
Joined Mar 2005
Jun 9, 2021
00dahc
Jun 9, 2021
3,114 Posts
Quote from dhodson :
My home is cat5e wired and I have 1gig fiber. I get near 1 gig speed."
"near 1 gig"

How do you live with yourself? You need Cat8 now!

:p

I also have 1gb down 1gb up fiber at my house. I built the house with Cat6 running everywhere. When the fiber company installed the ONT(router) they used Cat5e when converting from fiber to ethernet.

I get 950-980mbps up and down.

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