Cisco GLC-SX-MM= Transceiver Module
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Why GLC-SX-MM= Cisco Duplex LC Connector SFP Refurbished is the best?

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Part Number#: GLC-SX-MM=
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Short Description:
GLC-SX-MM= 1000 Base-SX Multi Mode Fiber 550M 850NM Duplex LC Connector 1 Gigabytes Per Second (GBPS) Gigabit Ethernet Small Form-Factor Pluggable (SFP) (Mini GBIC) Transceiver Module | Made by Cisco | Refurbished

Interface Types of This Product: Transceiver GBIC-SFP

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
We are giving specifications below, why one should consider procuring Cisco GBIC-SFP Transceiver Networking features, a general overview, description, performance specification, relevant images, a competitive price infographic, and technical information about the GLC-SX-MM= model with compatibility.

Detail Information

GLC-SX-MM= is a type of Small Form-Factor Pluggable (SFP) transceiver module that is used for transmitting data over fiber optic cables. It is specifically designed to operate at a data rate of 1.25 Gbps and to be used over multi-mode fiber optic cables.

The "GLC" in the name stands for "Gigabit Ethernet Link Control", indicating that the transceiver is used for Gigabit Ethernet applications. The "SX" in the name stands for "Short-wavelength (SX) Multi-mode Fiber", indicating that the module is designed to be used with multi-mode fiber optic cables that use short-wavelength (850 nm) lasers. The "MM" in the name stands for "Multi-mode", indicating that the module is designed to be used with multi-mode fiber optic cables.

This transceiver module is used to connect networking equipment, such as switches and routers, to fiber optic cables. It is commonly used in local area networks (LANs) and metropolitan area networks (MANs). It is compatible with the IEEE 802.3z Gigabit Ethernet standard and is compliant with the Small Form-Factor Pluggable (SFP) Multi-Sourcing Agreement (MSA).

Features and Benefits

The Model Cisco 1.25Gbps 1000Base-SX Multi-mode SFP Transceiver Module is designed to operate at a data rate of 1.25 Gbps. This means that it is capable of transmitting data at a rate of up to 1.25 Gbps (1.25 billion bits per second) over fiber optic cables.

The module is designed to be used over multi-mode fiber optic cables that use short-wavelength (850 nm) lasers. It is compliant with the IEEE 802.3z Gigabit Ethernet standard, which specifies the requirements for transmitting data at a rate of 1 Gbps over fiber optic cables.

In terms of performance, this transceiver module is generally reliable and can transmit data over long distances, depending on the type of fiber optic cable used. It is also resistant to interference from electrical and magnetic fields, making it suitable for use in environments where such interference may be present.

Robust Security and Dynamic Quality

The GLC-SX-MM= Cisco 1000 Base-SX SFP (mini-GBIC) transceiver module is designed to provide robust security and dynamic quality of service (QoS) features.

In terms of security, the transceiver is designed to help protect against unauthorized access and data breaches by implementing robust security features such as password protection and secure boot. Additionally, it also supports secure communication protocols like SNMPv3, which encrypts the management data being exchanged between devices.

Dynamic QoS refers to the ability of a system to automatically adjust the quality of service for different types of data traffic, depending on the current network conditions. This part transceiver supports QoS features such as traffic prioritization and congestion control, which help to ensure that the most important data traffic is given priority and that the network is able to handle heavy traffic loads without experiencing congestion.

General Information about this Cisco GLC-SX-MM=

  • Manufacturer: Cisco
  • Model Number or SKU# GLC-SX-MM=
  • Product Type: SFP (mini-GBIC)

Technical Information for 1000 Base SX SFP Mini GBIC

Interfaces/Ports of Transceiver Module

  • Interfaces/Ports 1 x 1000 Base-SX LAN
  • Interfaces/Ports Details 1 x LC Duplex 1000 Base-SX Network LAN


  • Connectivity Media 50 µm Multi-mode Optical Fiber 1000 Base-SX
  • Connectivity Media 62.5 µm Multi-mode Optical Fiber 1000 Base-SX
  • Data Transfer Rate 1 GBPS Gigabit Ethernet

Dimension and Weight

  • Height 0.4 Inch
  • Width 0.5 Inch
  • Depth 2.2 Inch
  • Weight 1 LBS


  • Cisco 7304
  • Cisco 7301
  • Cisco 12000
  • Cisco CSS 11500
  • Catalyst 2940
  • Catalyst 2950
  • Catalyst 3750
  • Catalyst 6500

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

Building a fiber-optic network calls for a lot of planning and consideration of many factors. Transceivers are part of the many devices used to build optical fiber systems. A transceiver serves the combined roles of a transmitter and a receiver in that it transmits and receives signals. They are most common in communication equipment such as cellular phones, cordless telephone sets, and radio. Small form factors are required as networks become dense and space is limited, which sees transceivers included in chipsets.

In local area networks (LAN), a transceiver is used to connect a computer to printers and other devices on the network. Usually, the transceiver is integrated into the Network Interface Card (NIC)

Typical Roles of a Transceiver

  • Used to convert frequencies from IF to RF.
  • Widespread use in wireless communication to transmit data – voice, data, and video.
  • RF transceivers are used in communication devices to support radio and TV signal transmission, digital signals transmission, and satellite communication.
  • Collision detection – detection of simultaneous signals on the network.
  • Transceivers can be deployed to provide a jabber function to interrupt transmission of long data stream outputs.

Look no further for all types of transceivers including fiber optic transceivers, wireless transceivers, Ethernet transceivers, and RF transceivers. All these transceivers have different characteristics and support full-duplex communication, but the principle behind their work remains the same. Different types of transceivers will have varying numbers of ports used in transceiver networking connections.

RF Transceivers: these devices are used to transmit video or voice data over a wireless medium. Commonly used for satellite communication, radio transmission, and ITE/WiMax/WLAN networks. The radio transceiver works by silencing the receiver when it is transmitting. There is an electronic switch that facilitates the connection of both the receiver and transmitter on the same antenna. The switch protects the receiver from damage that may be caused by the transmitter output.

Fiber Optic Transceivers: Also referred to as optical modules or fiber optical transceivers. Used to transmit data in fiber optic technology. The network must also have electronic components to encode or decode data into light signals.

Ethernet Transceivers: Basically used to connect electronic devices in a network so that they are able to transmit and receive data. It is also referred to as a media access unit (MAU). The best application of these transceivers is in the specification of IEEE 802.3 and Ethernet. Ethernet transceivers will detect a collision, provide Ethernet interface processing, convert digital data, and provide access to the network.

Wireless Transceivers: Wireless transceivers are a fundamental component necessary for data delivery in wireless networks. These transceivers have two layers. The physical layer has a baseband processor and RF front end. The processor converts a bitstream to a collection symbol flow for data transmission. The second layer is a MAC layer for link traffic control in contacting wireless links, improving data throughput, and preventing collisions.

We guarantee our customers high quality and reliability for all our transceiver networking solutions, irrespective of the type and size of your network.

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What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

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