Monoprice

Monoprice 105378 Cat6 Punch Down Keystone Jack - Black

4.5 (210 reviews)

Terminate Cat6 runs cleanly and reliably with a punch-down keystone jack that locks into any standard wall plate or patch panel.

$7.38*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Monoprice 105378 Cat6 Punch Down Keystone Jack is a foundational structured cabling component: the termination point where your horizontal cable run transitions to a patchable, modular RJ45 connection. Cat6 is rated for 1 Gbps up to 100 meters and supports 10 Gbps over shorter segments, but that rated performance depends on every component in the channel meeting spec — including the termination point. The 110-type IDC connection used here is the accepted industry method for maintaining conductor-to-conductor isolation and minimizing near-end crosstalk (NEXT) at the punch-down, which is where Cat6 installations most commonly fail when under-spec jacks are used. This jack is rated to maintain that Cat6 standard, so it won't be the component that limits your network's ceiling.

Installation workflow is straightforward for anyone with a 110-blade punch-down tool. The 90-degree IDC orientation positions wire entry cleanly, and the wiring diagram printed directly on the jack body eliminates the need for external reference cards when terminating T568A or T568B — a detail that matters when you're working in a cramped junction box or punching down a full patch panel. The keystone uses a standard snap-in form factor, compatible with any keystone wall plate or panel. One layout constraint worth planning around: the jack body is wide enough that two cannot sit side-by-side in a standard single-gang opening, so high-density installations need multi-port plates with appropriate port spacing. For straightforward 1 Gbps structured cabling in commercial, residential, or home lab environments, the 105378 delivers Cat6-rated performance at a price point that makes bulk purchasing practical.

Key Features

Package Dimensions: 2 L x 0.9 H x 1.2 W (inches)

Package Weight : 0.02 pounds

Country of Origin : China

Product type:ELECTRONIC CABLE

Specifications

Product Type
Keystone Jack
Category Rating
Cat6
Connector Type
RJ45
Color
Black

Pros & Cons

👍 Pros

  • 110-type IDC termination at 90 degrees is the industry standard connection method, ensuring a reliable, gas-tight conductor seat that maintains Cat6 signal integrity.
  • Wiring diagram is printed directly on the jack body — T568A and T568B reference is always present at the point of termination, reducing punch-down errors in the field.
  • Cat6-rated construction ensures this jack doesn't become the channel bottleneck in 1 Gbps installations and supports 10 Gbps over shorter runs.
  • Standard keystone snap-in form factor is compatible with virtually any keystone wall plate or patch panel without adapters.
  • Black finish provides a clean, neutral appearance in both residential and commercial installations.

👎 Cons

  • Width of the keystone body prevents two units from being placed side-by-side in a single wall plate — a real constraint when planning high-density multi-port installations in a small footprint.
  • Punch-down tool is not included — a 110-blade punch-down tool is required for proper termination and must be sourced separately.
  • No color options beyond black noted in the product listing — installations requiring color-coded port identification need external labels or different keystone sourcing.

Frequently Asked Questions

The jack includes a wiring diagram printed directly next to the wire clips, showing both T568A and T568B configurations. This means you can terminate to whichever standard your installation uses without referencing an external guide. Consistent standard selection across all jacks in a run is critical for link integrity, so the on-jack diagram reduces punch-down wiring errors.
The jack uses 110-type IDC (Insulation Displacement Connector) termination at a 90-degree angle. You'll need a punch-down tool (not included) — a 110-blade punch-down tool is standard for this type of termination. A quality punch-down tool seats the conductor cleanly and trims the excess wire simultaneously, which is important for maintaining Cat6-grade signal integrity at the termination point.
No — the manufacturer explicitly notes that the width of these RJ45 keystones prevents two from being used side-by-side in the same single-port wall plate opening. Plan your wall plate layout to use multi-port keystone plates with adequate spacing between ports, or factor this into your panel density planning.
Cat6 is rated for 1 Gbps up to 100 meters and can support 10 Gbps up to approximately 37–55 meters under ideal conditions. The keystone jack must be the correct grade to avoid becoming the weakest link in the channel — this jack is Cat6 rated to maintain that specification at the termination point.
Yes — the 110 IDC, 90-degree form factor is the standard keystone snap-in geometry used by virtually all keystone-compatible wall plates and patch panels. It mounts with a snap-in fit into any standard keystone slot.