Monoprice 142346 Cat6A Ethernet Cable 550Mhz F/UTP CMR 500ft — main product image

Monoprice 142346 Cat6A Ethernet Cable 550Mhz F/UTP CMR 500ft

Monoprice

Monoprice 142346 Cat6A Ethernet Cable 550Mhz F/UTP CMR 500ft

Name: Monoprice 142346 Cat6A Ethernet Cable 550Mhz F/UTP CMR 500ft
Brand: Monoprice
SKU: 142346

★★★★★4.4 (14 reviews)

550MHz F/UTP shielding and 23AWG solid copper deliver 10GbE infrastructure-grade performance in a 500-foot CMR-rated bulk roll.

$149.49*

Check availability

*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

The Monoprice 142346 is a 500-foot bulk run of F/UTP Category 6A cable tested to 550MHz — 10% beyond the ANSI/TIA 568-C.2 Cat6A minimum of 500MHz. The F/UTP construction pairs a foil shield around the bundle with individually twisted unshielded pairs, striking a balance between alien crosstalk suppression and termination simplicity. The 23AWG solid bare copper conductors are the electrical backbone: at this gauge and purity, DC resistance stays well within the 9.38Ω/100m spec required for 10GBASE-T at full 100-meter runs, and PoE+ power delivery remains stable at the cable's rated 500-foot maximum. CMR fire rating satisfies NEC Article 800 requirements for vertical riser installations between floors.

This cable is built for the infrastructure layer of commercial AV, security, and IT deployments — not patch panel jumpers. A 500-foot reel with jacket length markings is the right format for pulling cable through walls, conduit, or ceiling grid before terminating with field-installable connectors or keystone jacks. TAA and RoHS compliance make it viable for government and institutional procurement. The F/UTP shield is most valuable in environments with significant EMI sources — motor-driven HVAC, fluorescent lighting, or densely packed cable trays — where unshielded Cat6A cables can show elevated noise floors. For clean residential installs with short runs, the shielding is conservative engineering; in industrial or broadcast infrastructure environments, it is the difference between a stable 10GbE link and intermittent retransmits.

Key Features

Shielded Twisted Pair (F/UTP) Category 6A Ethernet cable. 23AWG solid, pure bare copper conductors.

CMR (Riser) fire safety rating. IEEE 802.3af (PoE) / IEEE 802.3at (PoE+) compliant.

Tested to 550MHz bandwidth. 500 foot roll with length markings in reel-in-box packaging.

TAA compliant. ANSI/TIA 568-C.2 compliant.

RoHS compliant.

Specifications

Cable Type

Shielded Twisted Pair (F/UTP)

Pros & Cons

👍 Pros

23AWG solid bare copper conductors provide lower DC resistance and better PoE power delivery compared to CCA (copper-clad aluminum) alternatives.
F/UTP foil shielding suppresses alien crosstalk in high-density conduit runs, where unshielded Cat6A cables can degrade to Cat6 performance.
550MHz tested bandwidth exceeds the 500MHz Cat6A baseline, providing headroom for future-proofing at 10GbE.
CMR fire rating covers the most common commercial and residential in-wall installation scenarios without requiring a more expensive plenum-rated cable.
500-foot reel-in-box with length markings reduces installation waste and simplifies cut-length estimation on large jobs.

👎 Cons

F/UTP shielding requires proper bonding and grounding at both ends — in poorly grounded installations, the shield can act as an antenna and increase noise rather than reduce it.
The 500-foot fixed-length reel is efficient for large installs but wasteful for small runs; shorter pre-terminated patch cables are more economical for single connections.
CMR rating does not qualify for plenum (HVAC air-handling) spaces — separate CMP-rated cable is required in those environments, which this reel cannot substitute for.
The foil shield and 23AWG conductors make this stiffer than thinner-gauge or unshielded cables, which can complicate tight-radius routing in congested junction boxes.

Frequently Asked Questions

What is the difference between Cat6A F/UTP and standard Cat6A UTP, and why does it matter for this cable?

F/UTP adds a foil shield around all four pairs as a unit, which reduces crosstalk and alien crosstalk at high frequencies. For this cable, that shield is what allows it to sustain 550MHz bandwidth — 100MHz beyond the Cat6A minimum — making it more robust in high-density cable runs where unshielded cables would degrade signal integrity.

Does the CMR rating mean this cable can be run in-wall or through floors?

CMR (Riser) means this cable is rated for vertical runs between floors inside a building — it will not propagate flame through a riser. It is not rated for plenum (air-handling) spaces. For in-wall horizontal runs and most structured wiring scenarios, CMR is the correct and compliant choice.

Will this cable support PoE and PoE+ devices reliably over long runs?

Yes. The cable is IEEE 802.3af (PoE, 15.4W) and 802.3at (PoE+, 30W) compliant, and the 23AWG solid copper conductors are critical here — solid conductors have lower DC resistance than stranded, which matters for power delivery over long runs. At 500 feet, PoE+ remains within spec on this cable.

The cable is listed as 500 feet — are length markings printed on the jacket?

Yes. The reel-in-box packaging includes printed length markings on the jacket, which allows accurate measurement during installation without unspooling the entire reel.

What does TAA compliance mean for this cable?

TAA (Trade Agreements Act) compliance means the cable was manufactured or substantially transformed in a TAA-designated country. This is a procurement requirement for U.S. federal government and many institutional buyers — it has no effect on electrical performance, but it is required for GSA schedule purchases.