FINISAR FCM-8519-1-T4 Copper Gbic Transceiver Module 1.25GBPS

( Brand: Finisar ), ( Manufacturer Part Number: FCM-8519-1-T4 ), ( Part Type: Transceiver Module ), ( Country Of Origin: United States )

Review FINISAR Active Copper Gbic Transceiver Module 1.25gbps Fcm85191t4

The Finisar FCM-8519-1-T4 Copper GBIC Transceiver Module is a high-performance, Gigabit Ethernet solution designed for use in data centers, enterprise networks, and telecommunications applications. This transceiver module, specifically model FCM85191T4, operates at a data rate of 1.25 Gbps and provides a copper interface for connection to Ethernet switches or routers.

The FCM-8519-1-T4 transceiver is compliant with the IEEE 802.3z standard and supports full-duplex operation. It features a rugged, compact packaging with a latching GBIC interface that ensures secure and reliable connection to the network. The transceiver module is also built with a low power design, which minimizes power consumption and reduces operating costs.

The FCM85191T4 transceiver utilizes Finisar's advanced optical technology, including a high-performance, monolithic integrated receiver and transmitter, to deliver reliable data transmission. It is also designed with a built-in temperature sensor that allows for monitoring of the module's operating temperature, ensuring optimal performance and longevity.

The FCM-8519-1-T4 Copper GBIC Transceiver Module is a versatile and cost-effective solution for high-speed data transfer applications, offering reliable connectivity and advanced features in a compact, rugged package. With its support for 1.25 Gbps data rates and copper interface, it is an ideal choice for data centers, enterprise networks, and telecommunications applications where high-speed, low-latency connectivity is essential.

Pros and Cons of Buying Finisar FCM-8519-1-T4 Copper GBIC Transceiver Module (1.25GBps FCM85191T4)

The Finisar FCM-8519-1-T4 Copper GBIC Transceiver Module is a high-performance networking component used for data transmission between fiber optic networks and copper UTP (Unshielded Twisted Pair) cabling. Here are some pros and cons to consider before making a purchase.

1. Compatibility: This transceiver module is compatible with various networking devices that support SFP (Small Form-factor Pluggable) and GBIC (Gigabit Building Interconnect) form factors.

2. Data Transfer Rate: It supports data transfer rates of up to 1.25GBps, making it suitable for high-bandwidth applications.

3. Copper Support: The FCM-8519-1-T4 is designed to work with copper cabling, reducing the need for expensive fiber optic cables and connectors.

4. Reliability: Finisar is a well-established company with a reputation for producing high-quality networking components.

5. Energy Efficient: This transceiver module consumes less power compared to older transceiver technologies.

1. Cost: The FCM-8519-1-T4 may be more expensive compared to other transceiver modules due to its high data transfer rate and copper support.

2. Limited Distance: Copper cabling has a limited reach compared to fiber optic cables, which may limit the distance between networking devices.

3. Complexity: Installing and configuring this transceiver module may require some technical expertise.

The Finisar FCM-8519-1-T4 Copper GBIC Transceiver Module offers several advantages, including high data transfer rates, compatibility with various networking devices, and copper support. However, it also comes with some disadvantages, such as a higher cost and limited reach due to copper cabling.

If you require a high-performance transceiver module for applications that demand copper cabling and have the budget for it, the Finisar FCM-8519-1-T4 is a solid choice. However, if your budget is limited or if fiber optic cabling is a viable option, you may want to consider other transceiver modules with lower data transfer rates and lower costs.

Details:

Form Factor: GBIC Gigabit Interface Converter. Cable Distance: Supported Type: Copper twin ax active. This module is part of Finisar proven line high performance transceivers known for durability, interoperability, and consistent signal integrity. Model Number: FCM 8519 1 T4.

Optical / Copper Characteristics: Medium: no optical components. Hot Stoppable: Yes. Mechanical Specifications: Dimensions: Standard GBIC footprint. Active Signal Processing: Yes.

Latch Mechanism: Standard GBIC release tab. Extreme Networks. Cisco legacy GBIC based switches. Power Consumption: Low power design typically.

Manufacturer: Finisar Corporation. Transceiver Type: Active Copper. Net gear enterprise model's. Other MSA compliant GBIC platforms.

Foundry / Brocade. Signal Conditioning: Integrated active equalization and amplification. This module is ideal for short reach interconnects in data centers, enterprise networks, and lab environments where low latency reliability are essential. It supports 1000BASE CX Gigabit Ethernet applications and is widely used in enterprise switches, routers, storage networking equipment requiring reliable, low latency copper interconnects.

Housing: Metal enclosure for EMI protection. Electrical Interface: Connector Type: Standard GBIC edge connector. Active copper design for improved signal integrity. Alternate Part Number: FCM85191T4.

Its rugged metal housing provides excellent EMI shielding, and its hot stoppable GBIC form factor makes installation fast hassle free. EMI Shielding: Fully shielded metal housing. BRAND NEW:: Product Overview: The Finisar FCM 8519 1 T4 is an Active Copper GBIC Transceiver Module designed for short reach 1.25Gbps data communication over copper cabling.

part #: fcm85191t4 prices

• $11.62-$59.98

specifications switchchunk:

• brand: Finisar
• mpn: Fcm-8519-1-t4
• part type: Transceiver Module
• country of origin: United States

offer switchchunk:

• sold: 0
• started: June 1, 2026
• best offers: True
• availability: In Stock
• options: Ship-to-home
• quantity: 1

payments switchchunk:

• wallet: Paypal
• other
• credit card: Discover

seller switchchunk:

• # reviews: 88
• rating: 100.0%
• city: San Clemente, California

shipping switchchunk:

• service: UPS Ground, UPS 3 Day Select, FedEx Ground / FedEx Home Delivery, FedEx 2Day
• transit: 3-8 Days
• cost: $14.42
• type: Calculated
• class: Standard, Expedited
• carrier: UPS, FedEx

returns switchchunk:

• policy: No Returns

general switchchunk:

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

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