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EFB-Elektronik Cat6 Shielded (STP) Modular Coupler, RJ45 Female to RJ45 Female, 1:1, Metal Housing

Brand:
EFB
EFB 04:261485
EFB-Elektronik Cat6 Shielded (STP) Modular Coupler, RJ45 Female to RJ45 Female, 1:1, Metal Housing
€6.82 inc. VAT
Buy
37489.1
€5.73
€6.82 inc. VAT
Ships from EU stock: 41 item(s)
Product Code
04:261485
EAN Code
4049759069353
Manufacturer
EFB

Quick Specs

Type
Modular coupler, STP
Connectors/Interface
2 × RJ45 female, 1:1
Key spec
Cat6, metal housing
Compatibility
Joins two RJ45 patch cables
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EFB-Elektronik 37489.1 Modular Coupler RJ45 STP — Cat6

Cat6Shielded (STP)RJ45 F/F, 1:1Metal housing

The EFB-Elektronik 37489.1 is a Cat6 shielded (STP) modular coupler with two RJ45 female ports, made to join two patch cables into one longer link.

It has a metal housing and 1:1 pin assignment, so each pin connects straight through to the same pin on the other side. EFB-Elektronik, the German cabling manufacturer, classifies it as a connecting adapter for patch cables in its keystone and adapter range.

What's in the Box

  • 1 × EFB-Elektronik 37489.1 Cat6 STP modular coupler, RJ45 female / RJ45 female

What It Means in Practice

  • Extend a patch cable that is too short — plug one cable into each side.
  • Being shielded, it carries the shield through when both patch cables are shielded.
  • Cat6 rating gives headroom for Gigabit Ethernet links.
  • Keep the total link (cables plus coupler) within 100 m.

What Will Not Work

  • It does not terminate installation cable — RJ45 plugs only, no LSA terminals.
  • It is not a keystone module and does not snap into a patch panel or outlet.
  • It is not a splitter — it cannot share one port between two devices.
  • Crossover: pinning is 1:1, it does not swap pairs.

Technical Specifications

Identification
Part Number 37489.1
EAN / GTIN 4049759069353
Brand EFB-Elektronik
Connectivity
Type Modular coupler (inline adapter)
Ports 2 × RJ45 female
Pin assignment 1:1
Category Cat6
Shielding STP (shielded)
Physical
Housing Metal
Dimensions / weight Not published by EFB-Elektronik
Warranty
Warranty 1-Year Warranty (Singular)
Manufacturer Term Manufacturer warranty term not published by EFB-Elektronik — claims handled through Singular

Frequently Asked Questions

Will it work with unshielded patch cables?
Yes. The shield simply has nothing to connect to; the eight data pins work as normal.
Can I use it for PoE?
EFB-Elektronik does not publish a PoE rating for this coupler. A 1:1 coupler passes all eight pins, but ask us before using it on a high-power PoE++ device.
Singular Expert Insight · Buyer's Guide
Couplers are the quick fix for a cable that is just too short. For a permanent run, a single patch cable of the right length removes a connection point and is more reliable.
✓ Buy it if you need to join two RJ45 patch cables at Cat6, shielded or unshielded.
✕ Skip it if you need to terminate raw installation cable or mount the port in a panel — use a keystone instead.
→ Also consider a longer one-piece Cat6 patch cable.
Not sure it fits your setup? Send us the model of your rack, switch or device and we will check compatibility before you order.

Features - EFB - 37489.1

More Details
Product Code
04:261485
EAN Code
4049759069353
Manufacturer
EFB
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