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Monoprice 12756 1000ft Cat5e CMR Ethernet Cable Black — main product image
Monoprice

Monoprice 12756 1000ft Cat5e CMR Ethernet Cable Black

★★★★★5.0 (5 reviews)

A 1000-foot spool of pure bare copper Cat5e riser cable that lets you build exactly the custom-length runs your infrastructure demands — no wasted cable, no CCA shortcuts.

$147.27*$196.61Save 25%
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*Price sourced from Amazon.com. Last updated:Jul 15, 2026.Price and availability are subject to change.

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Overview

The Monoprice 12756 is a 1000-foot bulk spool of Cat5e UTP cable built around the specification detail that actually matters for long-term network reliability: 100% pure bare copper conductors at 24AWG solid. The 350MHz bandwidth rating exceeds the 100MHz minimum required for Cat5e certification, providing electrical noise margin that pays dividends in commercial installations near HVAC equipment, motor loads, or dense fluorescent lighting. Gigabit Ethernet is fully supported within the standard 100-meter run length limit, and the solid conductor construction produces clean, low-resistance terminations at keystone jacks, patch panels, and wall plates — the foundation of any reliable structured cabling system.

The CMR (Riser) fire safety rating makes this cable code-appropriate for vertical runs between building floors, covering the installation scenarios where jacket fire resistance is a real requirement rather than a marketing bullet point. The bulk spool format is designed for network installers building infrastructure from scratch — custom run lengths mean no excess cable coiled in walls or ceiling spaces, and the cost-per-foot at 1000 feet is substantially lower than pre-made patch cables. This cable is the right choice for permanent structured cabling in office buildouts, multi-room home network infrastructure, IP camera systems, and anywhere PoE devices are in the chain. It is not the right choice for desktop patch connections — solid conductor cable belongs in the wall, terminated at both ends, not between a switch and a workstation.

Key Features

Unshielded Twisted Pair (UTP) Category 5e Ethernet cable

24AWG solid, pure bare copper conductors

CMR (Riser) fire safety rating

350MHz bandwidth

1000 foot roll

Specifications

Brand
Monoprice
Model Number
12756
Cable Type
Cat5e Ethernet
Shielding
Unshielded Twisted Pair (UTP)
Conductor Material
Solid, pure bare copper
Wire Gauge
24AWG
Fire Safety Rating
CMR (Riser)
Bandwidth
350MHz
Length
1000 feet
Color
Black

Pros & Cons

👍 Pros

  • Pure bare copper conductors keep resistance in spec across the full 1000-foot spool — critical for PoE reliability and Gigabit performance at longer run lengths.
  • 350MHz bandwidth rating provides noise margin above the 100MHz Cat5e baseline, reducing packet errors in electrically noisy installations.
  • CMR riser rating satisfies vertical building runs between floors without additional conduit, simplifying multi-story installs.
  • A 1000-foot bulk spool allows custom-length runs that eliminate unnecessary cable slack — cleaner cable management and no wasted material.
  • Solid 24AWG conductors terminate cleanly in keystone jacks and patch panel punchdowns, producing reliable, low-resistance connections.

👎 Cons

  • Solid conductor construction makes this unsuitable for short patch cord applications — the stiffness increases with repeated flexing and can cause conductor fatigue over time at bend points.
  • At 350MHz, this cable does not support 10GbE (10GBASE-T requires Cat6a at 500MHz) — a factor worth considering in future-proofing infrastructure investments.
  • Bulk cable termination requires RJ45 crimp tools, keystone punch-down tools, and time — this is not a plug-and-play solution for non-technical users.
  • The 1000-foot spool is a significant upfront quantity commitment — suitable for large installs but excessive for small home network runs.

Frequently Asked Questions

CMR is a fire safety classification for cables run vertically between floors in a building — the jacket material is rated to resist flame propagation upward through a riser shaft. If you're running cable between floors without conduit in a commercial or multi-story residential building, CMR is typically the minimum code-required rating. It is not required for horizontal in-wall or plenum runs, but it satisfies those environments from a safety standpoint as well.
Pure bare copper has measurably lower resistance than copper-clad aluminum (CCA). At 24AWG, CCA wire can increase signal attenuation — especially over longer runs — and may fail to meet the electrical requirements of IEEE 802.3 PoE standards, which matter if you're powering IP cameras, access points, or VoIP phones over the cable. This Monoprice cable uses 100% pure bare copper, keeping resistance in spec across the full 1000-foot spool.
Cat5e at 350MHz supports Gigabit Ethernet (1000BASE-T) at the standard maximum segment length of 100 meters (328 feet) per TIA-568 specification. The 350MHz bandwidth headroom above the 100MHz Cat5e baseline provides additional noise margin, which is useful in electrically noisy environments like warehouses or near fluorescent lighting.
Standard RJ45 crimping tools and pass-through or standard RJ45 connectors work with 24AWG solid Cat5e. Solid conductor cable is designed for permanent runs terminated with keystone jacks or patch panel punchdowns — it is stiffer than stranded patch cable and not recommended for frequent flexing or short patch cord applications.
Yes, provided runs are within the 100-meter limit and the cable is terminated correctly. Pure bare copper conductors are required for reliable PoE — CCA cable can generate excess heat under sustained PoE current loads, which this cable avoids with its solid copper construction.

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