Networking Cable EFB Elektronik K4137BL.3 RJ-45 Cat6a 3m Blue

The EFB Elektronik K4137BL.3 RJ-45 Cat6a 3m Blue networking cable is a shielded copper patch cable designed for high-speed Ethernet connections. With a 3 meter length and Cat6a specification, it supports data rates up to 10000 Mbit/s and is intended for use in structured cabling, workstations, switches and network devices that require reliable 10 Gigabit performance. The cable uses S/FTP shielding and robust RJ-45 connectors plated with nickel/gold to maintain consistent signal integrity and connection durability. The blue jacket provides easy visual identification within cable bundles and rack environments.

Advantages

The S/FTP shielding minimizes electromagnetic interference and crosstalk, contributing to stable high-frequency transmission across the full Cat6a bandwidth. The RJ-45 connectors feature nickel/gold plating for improved corrosion resistance and reliable mating cycles. At 3 meters, the cable offers a practical balance between reach and signal quality for desktop and patch panel connections. The product’s construction and adherence to Cat6a class parameters enable consistent performance for demanding network applications.

Suitable for

• 10 Gigabit Ethernet links between switches, patch panels and servers
• High-speed workstation connections and desktop networking
• Structured cabling in office, data center or home lab environments
• Applications requiring reduced EMI and improved signal shielding

Key specifications

• Cable category: Cat6a (Class EA)
• Data rate support: up to 10000 Mbit/s
• Length: 3 m
• Shielding: S/FTP (overall foil with individually screened pairs)
• Connectors: RJ-45 to RJ-45, plated with nickel/gold
• Conductor type: stranded copper (flexible patch cord)
• Colour: Blue

How to use

Connect one RJ-45 plug to the network port of your device and the other plug to the switch, router or patch panel. Ensure connectors are fully inserted until they click to secure a proper physical and electrical connection. Route the cable to avoid sharp bends and excessive tension; maintain bend radii recommended for Ethernet patch cords and avoid running the cable parallel to power lines to reduce interference. For permanent installations, use appropriate cable management such as cable ties, trays or patch panels to prevent strain on connectors.

Usage recommendations

For optimal performance at 10 Gbit/s, keep the patch length within recommended standards and avoid combining with lower-category cables in the same signal path. Use the blue colour for consistent identification in mixed-cable environments and periodically check connectors for debris or damage to maintain reliable connections.