CAT8.1 Bulk Ethernet Cable, 40G CMR, 23AWG Solid Copper, Dual Shielded S/FTP
SKU: 44882990749

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

Sale price$155.70 Regular price$173.00
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Description

CAT8.1 Bulk Ethernet Cable, 40G CMR, 23AWG Solid Copper, Dual Shielded S/FTPDescription Our S FTP shielded CAT8. 1 bulk Ethernet cable is ideal for indoor 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 CMR Rated jacket and sequential footage markings on the jacket so you always know how much it left.

Description

Our S/FTP shielded CAT8.1 bulk Ethernet cable is ideal for indoor 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 CMR Rated jacket and sequential footage markings on the jacket so you always know how much it left.

This CAT8 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 cable is sold on a wooden spool of 500 or 1000 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 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.

Technical Diagram

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
  • CMR Riser Rated
  • High-Performance Data Communications Cable
  • Suitable For Up to 40G 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

C8SS-7006RB
  • Qty 1 - 500ft Spool, CAT8.1 40G Individually Shielded Pairs (S/FTP) Solid Copper Cable - Blue Jacket
C8SS-8345RW
  • Qty 1 - 500ft Spool, CAT8.1 40G Individually Shielded Pairs (S/FTP) Solid Copper Cable - White Jacket
C8SS-7005RB
  • Qty 1 - 1000ft Spool, CAT8.1 40G Individually Shielded Pairs (S/FTP) Solid Copper Cable - Blue Jacket
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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: 44882990749

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★★★★★ 5
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My clothing size is 16/18 and XL. Even though Amazon suggested a size XXL, I ordered my normal XL and they fit perfectly. The fabric for this style is 92% bamboo viscose and is amazingly soft and almost silky feeling. I had ordered a different boy short in this brand but they were 80% bamboo viscose and the fabric was significantly heavier. I returned those and ordered these.
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Liz Newman
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★★★★★ 5
Comfortable and cool. Does not ride up.
Color: 01-multicolour (4-pack), Size: Medium
Extremely comfortable. Stays cool. Ample coverage. Quality material. They do not creep up. I ordered a medium which I generally take a size small. I have reordered and will reorder again to add more colors to my collection.
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Janola
Lexington, US
★★★★★ 5
Great Value for Cool Thigh Protection
Color: 02-multicolour (4-pack), Size: XX-Large
For the price, I'm not sure there are better women's boxer shortlettes anywhere. I've tried more expensive brands, and for quality and cooling, these are right up there. I have other bamboo viscose undies that still get gross when I get sweaty in the summer, but these, with the large mesh panel, really help wick away a lot of that moisture, keeping you feeling dryer and cooler. I find that the leg openings are comfortable and don't roll up! and the waist band doesn't dig, nor does it roll down. These do not provide any compression, and I wasn't looking for any. I just wanted some cooling, thigh protecting women's boxers that wouldn't break the bank. These are them! Bonus- I've washed them and put them in the dryer (following their instructions), and they haven't shrunk; they look about the same and are nice and soft.
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Reviewed in the United States on July 28, 2025
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Pawtucket, US
★★★★★ 4
Great for the entire family but expensive
So far so good. The brand of boxers we had been buying changed their style and construction so we needed to find an alternative. These have held up well so far to multiple weeks of frequent washing and wearing from the entire family. We did size up from the usual 6/M we normally buy and ordered large to prevent the legs from rolling up which worked out great. Our daughter likes the length and how soft the fabric is for wearing under skirts and gym shorts and liners stay put without moving or leaking as another reviewer mentioned. Our son says they are comfortable and fit well being just supportive enough without being constrictive. We all agree that there seems to be not enough fabric in the back as they tend to be much tighter across the backside than the front and that also causes the waist band to ride lower in the back than the front. These have better seam placement than some brands we tried with no seam across the lady bits and no seam down the middle of the back side so they are more much comfortable but the cost is also much higher and that is why we're only giving it 4 stars. These will stay in the rotation until we find something cheaper that both us and the kids like.
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Pregnant lady review! Soft, comfortable, cool.
Color: 03-multicolour (4-pack), Size: Large
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