Networking cable EFB Elektronik K5528GE.1 RJ-45 Cat8.1 1 m Yellow

The EFB Elektronik K5528GE.1 is a 1 m Cat.8.1 networking cable with RJ-45 connectors on both ends. It uses S/FTP shielding and supports high-speed applications including 25GBASE-T and 40GBASE-T, offering a frequency range up to 2000 MHz and a maximum recommended transmission length of 30 m for these standards.

Advantages

The Cat8.1 construction with S/FTP shielding provides improved protection against electromagnetic interference and crosstalk. Rated for frequencies up to 2000 MHz and designed for 25GBASE-T and 40GBASE-T, the cable supports data rates up to 40000 Mbit/s and is fitted with standard RJ-45 connectors for easy integration into existing network equipment. Its 1 m length and yellow colour facilitate cable management and visual identification in patching environments.

Suitable for

• Short-range high-speed links in data centres and server rooms (up to 30 m)
• 25GBASE-T and 40GBASE-T network connections using RJ-45 ports
• Patching panels and switch-to-switch or switch-to-server connections where Cat8.1 performance is required

Key specifications

• Cable type: Cat.8.1
• Length: 1 m
• Connectors: RJ-45 — RJ-45
• Shielding: S/FTP
• Supported standards: 25GBASE-T, 40GBASE-T
• Frequency range: up to 2000 MHz
• Maximum recommended transmission distance (for 25G/40G): 30 m
• Maximum data rate (manufacturer): up to 40000 Mbit/s
• Colour: Yellow

How to use

Connect the RJ-45 connector at each end to compatible Ethernet ports on switches, servers or patch panels. Ensure both endpoints support the targeted standard (25GBASE-T or 40GBASE-T) and that the total channel length and connected hardware meet Cat.8.1 installation guidelines. Route the cable without sharp bends and avoid running it in close parallel with high-voltage power lines to maintain signal integrity.

Recommendations

Use this 1 m Cat8.1 cable for short, high-speed links within racks or between adjacent racks in data centres. For longer runs beyond 30 m, choose fibre optic or appropriate copper cabling that meets distance and performance requirements.