SKU: 79510874925

CAT8.1 Bulk Ethernet Cable, 40G LSZH, 23AWG Solid Copper, Dual Shielded S/FTP

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Description

CAT8.1 Bulk Ethernet Cable, 40G LSZH, 23AWG Solid Copper, Dual Shielded S/FTPDescription Our S FTP shielded CAT8. 1 bulk Ethernet cable is ideal for indoor and outdoor short runs up to 30 meters in length. Primary application is for high performance data centers. Composed of four individually shielded pairs of 23 gauge solid bare copper conductors, with an overall tinned copper braid shield. The CAT8. 1 bulk Ethernet cable has an overall LSZH jacket with sequential footage markings so you always know how much it left. This

Description

Our S/FTP shielded CAT8.1 bulk Ethernet cable is ideal for indoor and outdoor short runs up to 30 meters in length. Primary application is for high performance data centers. Composed of four individually shielded pairs of 23 gauge solid bare copper conductors, with an overall tinned copper braid shield. The CAT8.1 bulk Ethernet cable has an overall LSZH jacket with sequential footage markings so you always know how much it left.

This CAT8 outdoor bulk cable is suitable for 25G networking but has the ability to reach up to 40G speeds. This cable has a conventional 4 pair, 8 conductor wiring configuration. These twisted pairs are individually shielded in order to repel electromagnetic interference (EMI) in electrically noisy environments. They also keep Alien Cross Talk down to prevent from slowing down transmission speeds. Shielding is a vital part of how fast the signal seed is in CAT8 cables. That is why it is important to test the continuity of your shielding to ensure no loss is occurring. This Cat8.1 outdoor cable is sold on a wooden spool of 500 feet.

What sets CAT8 version 1 apart from CAT8 version 2? First CAT8.1 is backwards compatible with the Class I standard RJ45 while CAT8.2 is designed to be compatible with Class II Fa standard connectors. While we still recommend our CAT8 Modular plug to be used with this cable it is compatible with legacy connectors. The structure is also different in the CAT8.1 compared to the 8.2. There is far more shielding and insulation in the 8.2 to reduce interference even further if meeting the max frequencies.

Our solid CAT8.1 outdoor cable has individually shielded pairs (S/FTP), and is quality manufactured to meet and or exceed product certifications which uphold to the new ANSI/TIA-568C-2.D standards.

Features

  • Category-8.1 Solid Cable
  • Category 8.1 cabling is fully backward compatible with RJ45
  • Shielded Twisted Pair (S/FTP) Cable
  • Overall Tin-Copper Braiding
  • LSZH Indoor/Outdoor Jacket
  • High-Performance Data Communications Cable
  • Suitable For 25G High Speed Data Center Applications
  • Up to 30 Meter Distance Runs
  • 4-Pair - Easily Identified Color-Striped Pairs
  • 23 AWG Solid Bare Copper Conductors
  • Excellent Attenuation and Crosstalk Characteristics
  • Exceeds ANSI/TIA 568 B.2-1, ISO/IEC
  • ISO/IEC 11801
  • Supplied on a 500 ft. Wooden Spool

Applications:

  • 25/40GBASE-T Ethernet
  • 10Gb/s Networking
  • Rackcenter Topologies Supported:
    • Top-of-Rack (ToR)
    • End-of-Row (EoR)
    • Middle-of-Row (MoR)
  • Not Intended for Premise or Enterprise Networks

Specifications

Additional Information

The Difference Between CAT8.1 and CAT8.2

The international standards ISO and IEC have designated two cabling variants to support 25Gbps and 40Gbps; they are Category 8.1 and Category 8.2. Category 8.1 components are used to construct Class I links which are backward compatible with the RJ45 connector interface for categories 6A, 6 and 5e this is stated in ISO/IEC 11801 and EN 50173. Category 8.2 components are used to construct Class II links. Category 8.2 components are backward compatible with components used to construct Class F and Class FA links. Category 8.2 connector interfaces ARE NOT BACKWARD COMPATIBLE with standard RJ45 jacks of existing cabling. Don't worry we offer the top CAT8 RJ45 jacks in the industry.


Component Category Link Class Max Frequency Responsible Standards Body Usage 25GBASE-T 40GBASE-T Compatible with RJ45
CAT 8 CAT 8 Link 2GHz ANSI/TIA North America Yes Yes Yes
CAT 8.1 Class I 2GHz ISO/IEC International Yes Yes Yes
CAT 8.2 Class II 2GHz ISO/IEC International Yes Yes No

Class I vs. Class II

Cable OD difference ~5% greater for Class II
Cable bulk difference ~10% greater for Class II
30m channel cost difference (components only) 4-36% greater for Class II
NEXT & FEXT cancellation for same margin to capacity ~20dB less for Class II

Standards Breakdown

TIA ISO 11801
Channel / Perm.L Cat 8 Class I Class II
Max. Frequency 2000 MHz
Components Cat 8 Cat 8.1 Cat 8.2
Extrapolated From Cat 6A Class FA
Style RJ45 Non-RJ45 (TERA, GG45, ARJ45, ...)
Accuracy Standard TIA 1152a IEC 61935-1 Ed.5 (Draft)
Level 2G Level VI for CI.I Level VI for CI.II

What's in the Box

  • Qty 1 - 500FT Spool, CAT8.1 Bulk Ethernet Cable, 40G LSZH, 23AWG Solid Copper, Dual Shielded S/FTP - Black Jacket
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
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    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 79510874925

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    4.2 ★★★★★
    Based on 21 reviews
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    N
    Verified Purchase
    Nick
    New York, US
    ★★★★★ 5
    Amazing - Stop Scrolling and Buy This Pillow
    Size: Queen (Pack of 1), Color: White
    I have been an Amazon customer ever since the very beginning, and this is my first review. Not because I haven’t purchased tons of amazing things (and a few bad ones), just never felt the need. However, I researched pillows for longer than I care to admit, and decided on this one. I’ve had it for about six months and absolutely love it. No lie, I genuinely look forward lying my big head on it after a long day. I am a side sleeper, but flip flop all around through the night and it’s great in every position. Pros: Stays nice and cool, which is soothing regardless of the time of year. Has a sort of quilted textured pattern on the zip up cover, gives it a luxury feel, that breaths nicely even when a pillow case is added. The fill is fully adjustable to your preference. I knew it came with extra filling but was worried it would not be enough. Wrong. It was very full and I ended up taking some out until it was perfect. It comes vacuum sealed and suggests it may take some time to fully take shape. However, I found it to be about 90% almost instantly and was sleeping on it a couple hours later. There was no unpleasant scent sometimes associated with memory foam items. The foam itself is very nice, a mix of what appears to be shredded and cotton candy cloud like. Very brilliant idea, as it is somehow supportive, soft and firm all at once. The affordability of this pillow compared to some of the others in this category can’t be overstated. Oh, and the packaging was very thoughtfully and securely done. If you are like me, an over thinker, I would suggest just taking this for a spin. It’s amazing. I’m not a bot, or working for the company. I’m just truly satisfied, love this pillow, and have been sleeping great.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 6, 2026
    K
    Verified Purchase
    k25
    San Leandro, US
    ★★★★★ 5
    It's the perfect pillow!
    Size: Queen (Pack of 1), Color: White
    I purchased this pillow specifically for its customizable fill feature, which allows you to add or remove stuffing to suit your personal comfort needs. Due to the unique curvature of my cervical spine—forward at the neck rather than backward—I require a soft, semi-flat pillow rather than one that is thick or firm. Additionally, I often experience ear discomfort by morning, so a gentler surface is essential. Upon adjusting the fill, I was pleasantly surprised by the generous amount of stuffing included. There was enough to fill an additional pillowcase, and I estimate it could easily create four to five more pillows. The ability to modify the pillow’s firmness at any time is an outstanding feature that makes it adaptable for a wide range of preferences and sleep styles. This pillow has exceeded my expectations in both comfort and versatility. I highly recommend it to anyone seeking a personalized sleep experience.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 1, 2026
    N
    Verified Purchase
    NC Coach
    West Palm Beach, US
    ★★★★★ 4
    Good quality pillows overall
    Size: King (Pack of 2), Color: White
    Got a set of these for my wife and myself as we were struggling with our old pillows. These have some really good qualities and some things we'd like to see changed. First, the good: These are look and feel like they are high quality and made with good materials. The foam itself has a very nice feel to it. We love the fact they are adjustable to add or remove foam. They come with a pretty substantial amount already in the pillow. We appreciate the CertiPur certification. Now the improvements or changes we'd like to see: The foam, while feeling great, doesn't bounce back well if you scrunch your pillows, and so every day you have to fluff and reshape the pillow, moreso than some other memory foam pillows we've owned. One side of the pillow is cooled and you can feel that even through the pillow case, and that's a great thing. However, one side is not cooled and we'd have preferred if both sides were made of the cooling material. Overall, these are good pillows and we are not disappointed with the purchase. They are not, however, our perfect pillows (which do seem hard to find), and at some point in the future will probably make their way to the guest bedroom. We would rate them as some of the better pillows we've tried and feel most people would probably like them.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 19, 2025
    A
    Verified Purchase
    Amazon Customer
    Massapequa, US
    ★★★★★ 5
    Perfect Pillow
    Size: Queen (Pack of 1), Color: White
    These are the best pillows ever. You can adjust the firmness or softness to whatever you want. For years i used a soft latex pillow , which you cant get anymore. I will never use another pillow. I have purchased 6 of these after the first one. You pick your own comfort level. Best ever. No more neck aches.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 17, 2026
    M
    Verified Purchase
    Mark
    Alexandria, US
    ★★★★★ 5
    Hallelujah… finally, I found the right pillow!!!
    Size: Queen (Pack of 1), Color: White
    I have spent a lot of money searching for the right pillow. I recently tried to Tempur-pedic that cost twice with this pillow cost. Tempur-pedic flattened out. I’ve had this pill for a few weeks now and it works wonders. I am a paraplegic. You can have a lot of neck problems. I love the fact that this pillow is adjustable. I immediately saw it was too stuffy and took a bunch out. It works perfect so glad I didn’t spend money on a $200 purple pillow. I read a lot of reviews and there were a lot of complaints about the odor. Mine did smell funny when it came out of the box. I immediately threw it in the dryer with a few bounce fabric sheets came out smelling fine. Pillows are a very individual thing, but I think for 40 bucks this pillow is worth a try. I’m really enjoying mine about one of those silk pillowcases to go over it and it sleeps cool and comfortable. Best wishes in your search for the right pillow. Update: I’ve been using this pillow several months and it continues. Give me a good night rest pain-free.. well worth the money. UPDATE: I have been using this pillow for three months and it still works great. It does not flat out or get hot..
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 29, 2026

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