Black Box Cat5 Unshielded Network Coupler, Black (FM509)

Black Box Cat5e network coupler showing RJ-45 female ports and compact black housing with brand logo-alternate-image1
Black Box Cat5e network coupler showing RJ-45 female ports and compact black housing with brand logo-alternate-image1
Black Box Cat5e network coupler showing RJ-45 female ports and compact black housing with brand logo-alternate-image1
Black Box Cat5 Unshielded Network Coupler, Black (FM509)
Black Box Cat5e network coupler showing RJ-45 female ports and compact black housing with brand logo-alternate-image1

Black Box Cat5 Unshielded Network Coupler, Black (FM509)

Black Box FM509

$22.85
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Product Key Features

  • Features two RJ-45 (8-wire) female jacks.
  • Use in-line to connect two CAT5e patch cables.
  • Straight-pinned couplers work with both T568A or T568B wiring.
  • Guaranteed for life!
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Black Box Cat5 Unshielded Network Coupler, Black (FM509)

This item: Black Box Cat5 Unshielded Network Coupler, Black (FM509)

$22.85

Total price: $22.85
  • Description
  • Tech Specs
  • Refund Policy

Black Box

FM509

Black Box Cat5e Unshielded Network Coupler - Professional RJ-45 Connector Solution

The Black Box FM509 Cat5e Unshielded Network Coupler offers a professional solution for extending Cat5e network connections. This straight-pinned coupler is compatible with both T568A and T568B wiring standards, making it a versatile choice for network infrastructure needs.

Advanced Connectivity Features

  • Dual RJ-45 female connectors for seamless cable joining
  • Unshielded design optimized for Cat5e applications
  • Straight-pin configuration supporting T568A/B wiring standards
  • Compact dimensions: 0.6" x 0.6" x 1.1"

Professional-Grade Construction

Engineered for reliability, this black-colored network adapter weighs just 0.50 oz, making it ideal for both permanent installations and temporary network extensions. The coupler's robust construction ensures consistent performance in various networking environments.

Lifetime Warranty: Backed by Black Box Corporation's lifetime warranty, ensuring long-term reliability and customer satisfaction.

Environmental Compliance

  • TAA Compliant for government and institutional requirements
  • RoHS compliant - restricts use of hazardous substances
  • WEEE directive compliant for proper electronic waste management
  • Environmentally friendly design and manufacturing

Technical Specifications

  • Product Type: RJ-45 Network Adapter
  • Connector Configuration: Female-to-Female
  • Category Rating: Cat5e
  • Country of Origin: Taiwan

Use in-line to connect two CAT5e patch cables. Straight-pinned couplers work with both T568A or T568B wiring.

Black Box Cat5e network coupler showing RJ-45 female ports and compact black housing with brand logo

Seamless Cable Extension for Critical Network Infrastructure

This compact Black Box Cat5e network coupler transforms cable management challenges into simple solutions. The straight-pin design maintains signal integrity while extending network connections beyond standard cable lengths, making it essential for server rooms, office installations, and data centers where precise cable routing is crucial. The unshielded construction provides reliable performance for standard Ethernet applications while the universal T568A/T568B compatibility ensures seamless integration with existing network infrastructure. Built with precision-molded RJ-45 female connectors on both ends, this coupler creates a secure, inline connection point that maintains the full Cat5e bandwidth capacity. The compact 1.1-inch profile fits easily into tight spaces, cable management systems, and patch panels without adding unnecessary bulk to your network setup.

Technical Specifications

  • Dual RJ-45 female connectors for inline cable joining
  • Cat5e rated for up to 100MHz bandwidth support
  • Straight-pin configuration compatible with T568A and T568B wiring standards
  • Compact 0.6" x 0.6" x 1.1" form factor for space-efficient installation
  • Unshielded design optimized for standard office network environments

Applications

  • Extending patch cables in server racks and network closets
  • Creating connection points in permanent cable installations
  • Joining cables for temporary network setups and testing
  • Facilitating cable management in structured wiring systems
  • Enabling quick network reconfigurations without rewiring
Return Policy Time to Return
Standard Return Policy We offer a hassle-free 30-day returns policy for domestic (US) orders, excluding non-refundable items. Refund or Replacement within 30 days of the delivery date. All products that fall under the Standard Return Policy qualify for our 30-Day Hassle-Free Returns.
Replacement Only Return Policy Replacement within 30 days of the delivery date.
Manufacturer Only Return Policy Covered by the manufacturer's warranty. Please refer to the terms and conditions for the manufacturer's warranty or contact the manufacturer.
FAQ
The Black Box FM509 is designed to connect two CAT5e patch cables in-line. It features straight-pinned connections compatible with both T568A and T568B wiring standards, making it a versatile solution for extending network cable runs. The coupler has female RJ-45 connectors on both ends.
The Black Box FM509 coupler is compact, measuring 0.6 inches in height, 0.6 inches in width, and 1.1 inches in depth. It weighs approximately 0.50 ounces, making it lightweight and easy to install in any network setup.
Yes, the FM509 coupler is versatile in its compatibility. It works with both T568A and T568B wiring standards through its straight-pinned configuration. This universal compatibility ensures it can be used in virtually any CAT5e network installation without wiring concerns.
The Black Box FM509 comes with a lifetime limited warranty, demonstrating the manufacturer's confidence in the product's durability and long-term performance. This warranty provides excellent value and peace of mind for professional installations.
Yes, the FM509 is environmentally friendly and complies with major environmental standards including the Waste Electrical and Electronic Equipment Directive (WEEE) and Restriction of Hazardous Substances (RoHS). It's designed with environmental responsibility in mind.
The FM509 features RJ-45 network female connectors on both ends (1 x RJ-45 female on each side). It's an unshielded coupler designed specifically for CAT5e network cables, providing a reliable connection point for cable extension.
Yes, the FM509 is TAA (Trade Agreements Act) compliant. It is manufactured in Taiwan and meets the requirements for government and institutional purchases that require TAA compliance.
The FM509 is ideal for any CAT5e network installation where cable extension is needed. Its unshielded design and compatibility with both T568A and T568B wiring makes it suitable for office networks, data centers, and general network infrastructure where CAT5e cabling is used.

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