Networking cable EFB Elektronik K5528GR.5 RJ-45 Cat8.1 5 m Grey

The EFB Elektronik K5528GR.5 is a Cat8.1 networking cable with a length of 5 m designed for high-speed RJ45 connections. It supports 25GBASE-T and 40GBASE-T applications, offers S/FTP (S-STP) shielding for reduced electromagnetic interference and provides data transfer rates up to 40000 Mbit/s with a frequency range up to 2000 MHz and a recommended maximum transmission distance of 30 m.

Advantages

The cable’s Cat8.1 specification and S/FTP shielding ensure increased signal integrity in dense network environments. RJ-45 connectors on both ends make it compatible with standard network ports. With a 5 m length and grey jacket, the cable balances reach and neat installation for server rooms, switches and high-speed workstations.

Suitable for

• 25GBASE-T and 40GBASE-T connections over RJ45
• High-speed links between switches, servers and network appliances
• Data centres and wiring closets with short to medium runs (up to 30 m)
• Workstations and professional setups requiring up to 40000 Mbit/s

Key specifications

• Standard: Cat8.1
• Length: 5 m
• Connectors: RJ-45 to RJ-45
• Shielding: S/FTP (S-STP)
• Maximum data rate: up to 40000 Mbit/s
• Frequency range: up to 2000 MHz
• Typical maximum transmission distance: 30 m
• Colour: Grey

How to use

Connect each RJ-45 connector to compatible network ports on switches, servers or network devices. Ensure both endpoints support 25GBASE-T or 40GBASE-T where those speeds are required. Route the cable to avoid tight bends and sources of strong electromagnetic interference to preserve shielding effectiveness and signal quality.

Recommendations

For optimal performance at 25GBASE-T or 40GBASE-T speeds, use runs shorter than or equal to 30 m and confirm device compatibility with Cat8.1 cabling. Avoid sharp bends and maintain separation from high-power cables to minimize interference.