Networking cable EFB Elektronik K5528SW.0.5 RJ-45 Cat8.1 0.5m Black

The EFB Elektronik K5528SW.0.5 is a 0.5 m Cat8.1 RJ-45 patch cable with S/FTP shielding, designed for high-speed copper Ethernet links. It supports 25GBASE-T and 40GBASE-T applications over RJ-45, offers a frequency range up to 2000 MHz and a maximum recommended transmission distance of 30 m. The black cable provides reliable short-distance connectivity for data centers, server racks, and high-performance desktop setups.

Advantages

The Cat8.1 construction with S/FTP shielding reduces electromagnetic interference and crosstalk, while RJ-45 connectors ensure compatibility with standard network equipment. With support for up to 40,000 Mbit/s data rate and operation up to 2000 MHz, the cable is suitable for demanding, high-bandwidth connections within its specified 30 m range. Its compact 0.5 m length keeps patch panels and racks tidy.

Suitable for

• 25GBASE-T and 40GBASE-T links in short-distance deployments
• Server racks and data center patching within 30 m
• High-performance desktop or workstation connections
• Network equipment interconnects using RJ-45 ports

Key specifications

• Standard: Cat8.1
• Length: 0.5 m
• Connectors: RJ-45 – RJ-45
• Shielding: S/FTP
• Frequency range: up to 2000 MHz
• Maximum transmission distance: 30 m (recommended)
• Data rate: up to 40,000 Mbit/s
• Colour: Black

How to use

Connect one RJ-45 connector to your source device (switch, NIC, or patch panel) and the other to the destination device using RJ-45 ports. Ensure both ports support the required 25GBASE-T or 40GBASE-T speeds if applicable. Route the 0.5 m cable without sharp bends and avoid running it parallel to strong electrical sources to maintain signal integrity.

Recommendations

Use this Cat8.1 S/FTP patch cable for short, high-bandwidth connections up to 30 m. Verify equipment compatibility for 25GBASE-T or 40GBASE-T operation and prefer rack-level or switch-level patching where short lengths are required. Replace the cable if connectors or shielding are visibly damaged.