US CRITICAL X1139A-SR-US Sfp Mmf Transceiver 10GBASE 850NM 300M

( Brand: Us Critical ), ( Manufacturer Part Number: X1139A-SR-US ), ( Part Type: Transceiver ), ( Network Ports: Sfp ), ( Maximum Data Rate: 10 Gbps )

Review US CRITICAL 10gbase 850nm 300m Sfpmm Transceiver

The Critical X1139A-SR-US 10GBase-SR 850nm 300m SFP Transceiver is a high-performance, short wavelength optoelectronic module designed for use in 10 Gigabit Ethernet networks. This transceiver, manufactured by Critical Communications Europe Limited, adheres to the Small Form-factor Pluggable (SFP) Plus interface and uses Multimode Fiber (MMF) with a connector type of LC.

This X1139A-SR-US transceiver operates over a wavelength of 850nm and offers a reach of up to 300 meters on multi-mode fiber cables, making it an ideal solution for data centers, enterprise networks, and other applications that require high-speed data transfer over relatively short distances. Its 10GBase-SR (Short Range) designation indicates its compatibility with short wavelength applications and its ability to deliver 10 Gbps of data transfer rate.

The module is engineered with a robust, compact design, featuring a rugged aluminum housing that protects the transceiver from harsh environments. This ensures reliable performance and longevity, even in challenging conditions. Additionally, it complies with the SFP Multi-Source Agreement (MSA), ensuring compatibility with a wide range of systems and equipment from various vendors.

* 10 Gigabit Ethernet data transfer rate

* 850nm wavelength for short wavelength applications

* 300 meter reach on multi-mode fiber

* Supports 10GBase-SR standard

* LC connector type

* Compact, rugged aluminum housing

* Compliance with SFP Multi-Source Agreement (MSA)

* RoHS and WEEE compliant

In summary, the Critical X1139A-SR-US 10GBase-SR 850nm 300m SFP Transceiver is a versatile and high-performance optoelectronic module suitable for various 10 Gigabit Ethernet networking applications. Its short wavelength design, robust construction, and broad compatibility make it an excellent choice for data center, enterprise, and other network environments requiring reliable, high-speed data transmission.

Critical Analysis of Buying a CRITICAL X1139A-SR-US 10GBase-SR 850nm 300m SFP MMF Transceiver

The CRITICAL X1139A-SR-US 10GBase-SR 850nm 300m SFP MMF Transceiver is a high-performance optical transceiver designed for use in data centers and other networking applications. This analysis will explore the pros and cons of purchasing this transceiver to help potential buyers make an informed decision.

1. High Bandwidth: With a data transfer rate of 10Gbps, this transceiver offers high-speed connectivity, making it ideal for handling large volumes of data in data centers and other networking environments.

2. Long Reach: The 300m reach of this transceiver makes it suitable for use in longer distance applications, such as connecting switches and servers in large data centers.

3. Energy Efficiency: The CRITICAL X1139A-SR-US transceiver is Energy Efficient, Consuming low power, which reduces power consumption and cooling requirements in the data center.

4. Compatibility: This transceiver is compatible with various networking equipment and platforms, ensuring versatility and ease of use.

1. Cost: The CRITICAL X1139A-SR-US transceiver may be more expensive compared to other transceivers due to its high performance and advanced features.

2. Complexity: The installation and configuration of this transceiver may require specialized knowledge and expertise, which could add to the cost and time of implementation.

3. Vendor Lock-in: Since this transceiver is specifically designed for use with Critical Systems, there is a risk of vendor lock-in, which could limit future upgrade options and flexibility.

The CRITICAL X1139A-SR-US 10GBase-SR 850nm 300m SFP MMF Transceiver offers several advantages, such as high bandwidth, long reach, energy efficiency, and compatibility. However, it also comes with potential drawbacks, including cost, complexity, and vendor lock-in.

If you are in need of a high-performance transceiver for use in a large data center or other networking application, the CRITICAL X1139A-SR-US transceiver is an excellent choice. However, it is essential to consider the potential costs, complexity, and vendor lock-in before making a purchase. Carefully evaluate your specific requirements and budget, and weigh the pros and cons to determine if this transceiver is the best fit for your needs.

Details:

US Critical X1139A-SR-US 10GBase 850nm 300m SFP mm F Transceiver, Note: Never Been Used. Excellent Condition. Plain Retail Box.

part #: x1139asr prices

• $17.00-$19.79

specifications switchchunk:

• brand: Us Critical
• mpn: X1139a-sr-us
• part type: Transceiver
• network ports: Sfp
• maximum data rate: 10 Gbps

seller switchchunk:

• city: Englishtown, New Jersey
• rating: 99.2%
• # reviews: 5477

general switchchunk:

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

offer switchchunk:

• quantity: 4
• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: December 22, 2025

shipping switchchunk:

• type: Fixed
• class: Standard
• carrier: USPS
• cost: $0.00
• service: USPS Ground Advantage
• transit: 4-9 Days

returns switchchunk:

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

payments switchchunk:

• credit card: Visa
• wallet: Apple-pay
• other

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