Telegärtner AMJ Cat.8.1 Keystone Module, 2-Pack, T568A/B, Shielded, Toolless LSA, 40G, 2000 MHz

Engineered for 40 Gigabit Ethernet, this shielded Cat.8.1 keystone module delivers a 2000 MHz bandwidth—double the frequency of Cat.6A—making it a future-proof choice for high-density data centers and enterprise networks. The die-cast zinc housing and gold-plated contacts (0.8 µm) ensure reliable, long-lasting connections even under heavy use.

Overview

The Telegärtner AMJ Cat.8.1 module is a snap-in keystone jack designed for patch panels, faceplates, and surface-mount boxes. It supports both T568A and T568B wiring schemes via toolless LSA (punch-down) termination, simplifying installation without sacrificing performance. The module is shielded (STP/FTP) to protect against electromagnetic interference, and it is sold as a 2-pack for convenient multi-port setups.

What stands out

• Supports up to 40GBASE-T over twisted-pair copper
• Frequency range up to 2000 MHz (2 GHz) for Cat.8.1/Class I
• Toolless LSA termination—no punch-down tool required
• Die-cast zinc housing for durability and EMI shielding
• Gold-plated contacts (min. 0.8 µm) with >750 insertion cycles
• Compatible with solid (AWG 24/1–22/1) and stranded (AWG 26/7–22/7) wire
• Supports PoE, PoE+, and 4PPoE (IEEE 802.3af/at/bt)
• Snap-in keystone design fits standard 19.2 x 14.9 mm openings

Technical details

• Connector type (front): RJ45 (8P8C)
• Connector type (rear): IDC (insulation displacement connector)
• Wiring standard: T568A / T568B
• Operating temperature: -40°C to +70°C
• Standards compliance: ISO/IEC 11801-1, EN 50173-1, ANSI/TIA-568.2-D, IEC 60603-7-81

Our verdict

For installers and network engineers needing maximum throughput and headroom, the Telegärtner AMJ Cat.8.1 module is a top-tier choice. Its toolless termination and robust shielding make it both fast to deploy and reliable in demanding environments.