1. Enterprise Network Switch Modules Parts
  2. sku: 10957664730573782
  3. FINISAR FCMJ-8521-3-BB

FINISAR FCMJ-8521-3-BB Copper Sfp Transceiver 1000BASE-T

Fcmj-8521-3-bb Finisar 1000base-t Copper Sfp Transceiver

( Brand: Finisar ), ( Manufacturer Part Number: FCMJ-8521-3-BB ), ( Part Type: Transceiver ), ( Connectors: Rj-45 ), ( Unit Type: Unit ), ( Network Ports: Sfp ), ( Country Of Origin: Malaysia )

Review FINISAR 1000base-t Copper Sfp Transceiver

The Finisar FCMJ-8521-3-BB 1000BASE-T Copper SFP Transceiver is a high-performance, cost-effective solution for enhancing the connectivity of your Ethernet network infrastructure. This transceiver is designed to support 1000BASE-T Ethernet, which is the latest standard for Fast Ethernet, delivering data transfer rates of up to 1 Gigabit per second over four pairs of copper wires.

The compact, rugged design of this SFP transceiver makes it an ideal choice for a wide range of applications, including data centers, enterprise networks, and telecommunications systems. The FCMJ-8521-3-BB is built with advanced components that ensure reliable and stable data transmission, even in challenging environments.

The transceiver features a LC duplex connector interface, which allows for easy and flexible installation. It is compatible with a broad range of SFP ports and can be used interchangeably with other SFP transceivers, making it a versatile addition to any network infrastructure.

The Finisar FCMJ-8521-3-BB is also known for its power-saving capabilities. It consumes only 1.3 watts during operation, making it an energy-efficient option for power-conscious networks. Additionally, it supports both the IEEE 802.3ab and IEEE 802.3an standards, ensuring compatibility with various network configurations.

This SFP transceiver is also backed by Finisar's industry-leading quality and support. It comes with a limited lifetime warranty, ensuring peace of mind for network administrators and IT professionals. The FCMJ-8521-3-BB is a reliable and cost-effective choice for anyone in need of a high-performance, copper-based 1000BASE-T SFP transceiver.

Pros and Cons of Buying Finisar FCMJ-8521-3-BB 1000Base-T Copper SFP Transceiver

The Finisar FCMJ-8521-3-BB 1000Base-T Copper SFP Transceiver is a commonly used optical transceiver in data centers and enterprise networks. In this analysis, we'll discuss the key advantages and disadvantages of investing in this specific transceiver model.

Pros:

1. Cost-Effective: This transceiver is a cost-effective solution for 1000BASE-T applications, offering a competitive price point compared to other transceivers in the market.

2. Compatibility: The Finisar FCMJ-8521-3-BB is compatible with a wide range of network equipment from various manufacturers, making it a versatile choice for diverse networking environments.

3. Energy Efficiency: This transceiver consumes less power compared to its predecessors, contributing to energy savings and reducing the overall carbon footprint of your network infrastructure.

4. Reliability: Finisar is a well-established and reputable manufacturer known for producing high-quality networking components. The FCMJ-8521-3-BB transceiver is no exception, offering a reliable solution for your 1000BASE-T needs.

Cons:

1. Limited Distance Support: This transceiver is designed for short-range applications and may not support longer distances. Depending on your network topology, you might need to consider alternative solutions for longer reaches.

2. Potential Interoperability Issues: Although the transceiver is generally compatible with various network equipment, there could be instances where interoperability issues arise. Ensure that you verify compatibility with your specific network components before making a purchase.

3. Limited Warranty: Finisar offers a limited warranty of one year on this transceiver, which might not be sufficient for some organizations seeking extended coverage.

Conclusion:

The Finisar FCMJ-8521-3-BB 1000Base-T Copper SFP Transceiver is a cost-effective and reliable solution for short-range 1000BASE-T applications in enterprise networks. Its compatibility with a wide range of networking equipment and energy efficiency are additional advantages. However, its limited distance support and potential interoperability issues, coupled with a one-year warranty, are factors to consider before making a purchase.

Recommendation:

If you're looking for a cost-effective and reliable 1000BASE-T transceiver for short-range applications, the Finisar FCMJ-8521-3-BB is a solid choice. However, it's essential to confirm compatibility with your specific network components and consider alternative solutions if you require longer distance support or extended warranty coverage.

Details:

Finisar FCMJ-8521-3-BB 1000BASE-T Copper SFP Transceiver.

part #: fcmj85213 prices

  • $10.00-$39.20

specifications switchchunk:

  • brand: Finisar
  • mpn: Fcmj-8521-3-bb
  • part type: Transceiver
  • connectors: Rj-45
  • unit type: Unit
  • network ports: Sfp
  • country of origin: Malaysia

general switchchunk:

  • Enterprise Networking, Servers > Switches Hubs > Switch Modules
  • condition: Used

offer switchchunk:

  • availability: In Stock
  • sold: 0
  • started: June 4, 2026
  • quantity: 11
  • best offers: True
  • options: Ship-to-home

returns switchchunk:

  • time: 30 Days
  • policy: Returns Accepted
  • method: Money back
  • paid by: Seller

seller switchchunk:

  • rating: 100.0%
  • city: Minneapolis, Minnesota
  • # reviews: 954

shipping switchchunk:

  • type: Fixed
  • transit: 2-5 Days
  • service: USPS Ground Advantage
  • carrier: USPS
  • class: Standard
  • cost: $0.00

payments switchchunk:

  • credit card: Discover
  • wallet: Apple-pay
  • other
part type: transceiver, connectors: rj-45, unit type: unit, network ports: sfp, country of origin: malaysia,
category: computers > enterprise networking, servers > switches hubs > switch modules, sku: 10957664730573782,

Finisar FCMJ-8521-3 Is Similar To:

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5 offers $10.00–$39.20 USD
  • Offer #1: $10.00 price + $0.00 shipping estimate = $10.00* total. Finisar -BB 1000BASE-T Copper SFP Transceiver.FREE SHIPPING
  • Offer #2: $28.00 price + $0.00 shipping estimate = $28.00* total.FREE SHIPPING
  • Offer #3: $39.20 price + $12.90 shipping estimate = $52.10* total.+$12.90 shipping
  • Offer #4: $75.00 price + $0.00 shipping estimate = $75.00* total. This Unit has had its Serial Number covered for security. Xeci: V0I1M40EAA.FREE SHIPPING
  • Offer #5: $7.00 price + $0.00 shipping estimate = $7.00* total. Designed to work with Finisar products, this transceiver offers reliable performance and connectivity without compromising speed or data transfer rates Introducing the FINISAR -BB 1000Base-T RJ45 Optical SFP Transceiver, a high-quality networking solution for your enterprise needs.FREE SHIPPING

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