Networking cable EFB Elektronik K5528SW.2 RJ-45 Cat8.1 2 m Black

The EFB Elektronik K5528SW.2 is a Cat8.1 RJ-45 patch cable with a length of 2 m, designed for high-speed 25GBASE-T and 40GBASE-T applications. It supports frequencies up to 2000 MHz and a maximum recommended transmission distance of 30 m. The cable uses S/FTP shielding and delivers data transfer rates up to 40000 Mbit/s, suitable for demanding network environments requiring low interference.

Advantages

The Cat8.1 specification and S/FTP shielding provide improved protection against crosstalk and external electromagnetic interference. RJ-45 connectors ensure compatibility with standard network ports. With a compact 2 m length and a black finish, the cable is convenient for short links in racks, switches and patch panels while maintaining high throughput up to 40 Gbit/s.

Suitable for (tasks / use cases)

• Short-range 25GBASE-T and 40GBASE-T connections (up to 30 m)
• Server rooms and data centres between switches and patch panels
• High-speed workstation or NAS connections requiring low interference
• Environments where RJ-45 compatibility is required

Key specifications

• Standard: Cat8.1
• Length: 2 m
• Connectors: RJ-45 – RJ-45
• Maximum data rate: up to 40000 Mbit/s
• Frequency range: up to 2000 MHz
• Shielding: S/FTP
• Product colour: Black
• Max recommended transmission distance: 30 m

How to use

Connect one RJ-45 connector to your switch, router or network interface and the other connector to the destination device or patch panel. Ensure that the total channel design meets Cat8.1 requirements and that the link length is within the recommended 30 m for 25G/40G applications. Avoid tight bends and mechanical strain on the cable and secure connectors firmly in ports for reliable contact.

Recommendations

For best performance at 25GBASE-T and 40GBASE-T speeds, use the cable in short in-row or rack-level connections and maintain proper grounding and cable management to minimize interference. Verify compatibility of network equipment with Cat8.1 and S/FTP cabling before deployment.