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Networking Cable EFB Elektronik K5528BL.0.5 Blue 0.5m Cat8.1 S/FTP

Networking Cable EFB Elektronik K5528BL.0.5 Blue 0.5m Cat8.1 S/FTP
Networking Cable EFB Elektronik K5528BL.0.5 Blue 0.5m Cat8.1 S/FTP
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R695
+R2 Reward
The EFB Elektronik K5528BL.0.5 is a 0.5 m Cat8.1 S/FTP patch cable with RJ45 connectors on both ends, designed for high-speed Ethernet links. It supports data rates up to 40000 Mbit/s and is built for applications requiring high bandwidth and reduced electromagnetic interference. The cable is blue a... Read More
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Stock 500 Code 2567679 Brand EFB Model K5528BL.1 Warranty 2 Years

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Estimated delivery Thursday, October 1
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The EFB Elektronik K5528BL.0.5 is a 0.5 m Cat8.1 S/FTP patch cable with RJ45 connectors on both ends, designed for high-speed Ethernet links. It supports data rates up to 40000 Mbit/s and is built for applications requiring high bandwidth and reduced electromagnetic interference. The cable is blue and intended for short-distance, high-frequency network connections.

Advantages

The Cat8.1 construction with S/FTP shielding provides improved protection against crosstalk and external interference while supporting frequencies up to 2000 MHz. With RJ45 terminations it is compatible with standard 25GBASE-T and 40GBASE-T equipment where a maximum link length of 30 m is acceptable. Its 0.5 m length makes it suitable for patching in racks and connecting adjacent devices with minimal excess cable.

Suitable for

  • 25GBASE-T links using RJ45
  • 40GBASE-T short-reach connections
  • High-density rack patching and adjacent device connections
  • Environments requiring S/FTP shielding to reduce interference

Key specifications

  • Standard: Cat8.1
  • Length: 0.5 m
  • Bandwidth/frequency: up to 2000 MHz
  • Max supported data rate: up to 40000 Mbit/s
  • Shielding: S/FTP (shielded foil with braided overall)
  • Connectors: RJ45 — both ends
  • Maximum recommended transmission distance: 30 m (typical for Cat8.1)
  • Color: Blue
  • Brand / MPN / EAN: EFB Elektronik / K5528BL.0,5 / 4049759215200

How to use

Plug each RJ45 connector into the corresponding network ports on your devices or patch panel. Use the 0.5 m cable for short connections inside racks or between adjacent equipment. Ensure connectors are fully seated to maintain contact integrity. For longer links or different installation requirements, select an appropriate cable length or category that meets distance and performance needs.

Recommendations

Use this Cat8.1 S/FTP 0.5 m cable for short, high-speed RJ45 connections such as 25GBASE-T or 40GBASE-T patching within racks; avoid using it for runs exceeding the recommended 30 m maximum distance for Cat8.1 to ensure specified performance.
Key Highlights
  • 25GBASE-T links using RJ45
  • 40GBASE-T short-reach connections
  • High-density rack patching and adjacent device connections
  • Environments requiring S/FTP shielding to reduce interference
  • Standard: Cat8.1
  • Length: 0.5 m
  • Bandwidth/frequency: up to 2000 MHz
  • Max supported data rate: up to 40000 Mbit/s
  • Shielding: S/FTP (shielded foil with braided overall)
  • Connectors: RJ45 — both ends
  • Maximum recommended transmission distance: 30 m (typical for Cat8.1)
  • Color: Blue
  • Brand / MPN / EAN: EFB Elektronik / K5528BL.0,5 / 4049759215200
Specifications
AWG wire size
24/7
Cable length
0.5 m
Cable shielding
S/FTP (S-STP)
Cable standard
Cat8.1
Cabling technology
40GBase-T
Conductor material
Copper
Connector 1
RJ-45
Connector 1 gender
Male
Connector 2
RJ-45
Connector 2 gender
Male
Connector shielding
Yes
Data transfer rate
40000 Mbit/s
Ethernet interface type
40 Gigabit Ethernet, 2.5 Gigabit Ethernet
Frequency
2000 MHz
Harmonized System (HS) code
84733080
Impedance
100 Ω
Jacket material
Low smoke zero halogen (LSZH)
Outer diameter
8 mm
Plug and Play
Yes
Product colour
Blue
Quantity per pack
1 pc(s)

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Price history over the last 6 months
Networking Cable EFB Elektronik K5528BL.0.5 Blue 0.5m Cat8.1 S/FTP
Current
R695
Lowest
R258
Highest
R701
Change 24H
+R10   +1%
Week
+R16   +2%
Month
+R15   +2%

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