Network Patch Cable bkl electronic 144008 CAT8.1 S/FTP RJ45 20 m Black Halogen-free

bkl electronic 144008 is a Category 8.1 S/FTP network patch cable with RJ45 connectors, 20 m length and a halogen-free black sheath. It is designed for high-speed Ethernet links in data centres, LAN backbones and short server or switch patching where Category 8.1 performance is required. The S/FTP construction (overall braid with individually foil-shielded pairs) reduces crosstalk and electromagnetic interference, helping to maintain signal integrity over the full 20 m length.

Advantages

The cable provides Category 8.1 performance suitable for multi-gigabit and 25/40 GBASE-T applications over short distances, while the S/FTP shielding reduces near-end and far-end crosstalk and offers improved protection against external EMI. The halogen-free jacket reduces toxic gas emission in the event of a fire and the RJ45 connectors allow compatibility with standard RJ45 ports without the need for specialized interfaces. A 20 m length balances flexibility for rack and patch-panel layouts with minimal insertion points.

Suitable for

• Short-run connections between servers, switches and patch panels in data centres and server rooms
• LAN backbone segments where Category 8.1 performance and strong shielding are required
• Environments sensitive to EMI where S/FTP shielding improves link reliability
• Installations that require halogen-free cabling for safety and compliance

When it may not be suitable

This CAT8.1 cable is intended for short-distance, high-speed links; it is not designed for long-haul runs or outdoor burial installations. For typical office wiring or residential use where lower categories (CAT5e/CAT6/CAT6A) suffice, CAT8.1 may be unnecessary and more costly. The RJ45 termination is compatible with standard ports but will only deliver Category 8.1 performance when paired with matching-rated hardware and connectors.

Key specifications

• Category: 8.1
• Shielding: S/FTP (overall braided shield with individually foil-shielded pairs)
• Connector type: RJ45 on both ends
• Length: 20 m
• Jacket: Halogen-free, black
• Use case: Ethernet links up to Category 8.1 performance (short runs)

How to use

Connect one RJ45 end to the network device (switch, server or patch panel) and the other end to the corresponding port. Route the cable to avoid sharp bends, excessive pull forces and proximity to high-power cables that may introduce interference despite shielding. Ensure both endpoints and any intermediate patch panels or couplers are rated for the required Category 8.1 or compatible performance to achieve expected speeds. Terminate and secure the cable in racks or trays using bend-radius–respecting clamps or ties.

What to consider before purchase

• Verify that your network devices and patch panels support Category 8.1 or the target multi-gigabit standard.
• Confirm that 20 m length suits your rack- and cabinet-layout to avoid excess slack or multiple junctions.
• Assess installation environment requirements for halogen-free materials and shielding against EMI.

Usage recommendations

For best results, pair the cable with Category 8.1–rated connectors and switches, maintain proper bend radius during installation, and avoid running parallel to heavy power lines. Use the cable for short, critical links where high throughput and strong shielding are required.