4 Pack 1000Base-SX SFP LC Transceiver 1.25G Optical Module

4 Pack 1000Base-SX SFP LC Transceiver 1.25G Optical Module Multimode MMF 850nm 550M for Cisco for Ubiquiti for MikroTik for Meraki for Netgear for D-Link for Fortinet for Supermicro for TP-Link

4 Pack 1000Base-SX SFP LC Transceiver 1.25G Optical Module Multimode MMF 850nm 550M for Cisco for Ubiquiti for MikroTik for Meraki for Netgear for D-Link for Fortinet for Supermicro for TP-Link

Upgrade your network with a trusted, compatible, and future-ready SFP optical module. Enjoy reliable 1000Base-SX fibre connectivity!

Whether you require server transceivers, network modules, or transceivers for technical upgrades/repairs—this SFP LC-1.25G-550m transceiver delivers professional-grade performance.

Module 1: High-Performance Multimode Connectivity for Your Network

1.Reliable 1.25G Speed Over Existing Multimode Fiber

This hot-pluggable SFP optical transceiver delivers full Gigabit Ethernet performance over OM1/OM2/OM3/OM4 multimode fiber up to 500 meters—perfect for data centers, campus backbones, and switches.

2.True Plug-and-Play Compatibility

Engineered as a direct replacement transceiver for Cisco, for Ubiquiti, for MikroTik, for Meraki, for Netgear, for D-Link, for Fortinet, for Supermicro, for Broadcom, for HPE Aruba, for TP-Link, and other major brands. No coding or firmware needed—just insert and link.

3.Premium Optical Components for Stability

850nm VCSEL laser transmitter for low power & high efficiency

Integrated DDM support for real-time monitoring of temperature, voltage, TX/RX power

Gold-plated LC connectors ensure low insertion loss and long-term reliability

Rigorously Tested for Real-World Use

Each fiber optic module undergoes 100% testing for optical performance, temperature stability, and signal integrity—ensuring enterprise-grade uptime.

Important Usage Notes and Safety Guidelines

To ensure optimal performance and extended service life of your LC 1.25G 550m SFP optical transceiver, please adhere to the following guidelines:

1. Handle with care – Electrostatic discharge (ESD) protection

Avoid direct contact with electrical contacts or the LC optical port when handling the module to prevent ESD damage.

2. Insert Only into Compatible SFP Ports

This module is a multimode LC SFP transceiver designed for 1000BASE-SX networks (850nm wavelength). Never insert into single-mode, copper (RJ45), or SFP+ (10G) ports – mismatched use will cause link failure or hardware damage.

3. Use Correct Multimode Fibre Cables

Connect only OM1/OM2/OM3/OM4 multimode LC-LC duplex fibre patch cords. Using single-mode fibre or damaged cables will cause signal attenuation or prevent link establishment.

4. Normal Operating Heat is Expected

The module may feel slightly warm during operation – this is the normal operating state of the internal laser and driver circuitry. Provided the switch is adequately ventilated and the ambient temperature remains within 0°C to 70°C, such warmth does not constitute a fault.

5. Maintain cleanliness and protection of optical ports

Dust caps must be fitted to LC interfaces when not in use. Dust, fingerprints, or moisture on the pins may cause signal attenuation.

  • 4 PCS LC 1000Base-SX：The LC optical module supporting 1.25G rate transmission. As an SFP transceiver, it operates with OM1/OM2/OM3/OM4 cables for stable transmission up to 550 meters (1805 Ft), compliant with SFF-8431 MSA standards,IEEE 802.3,DDM. Operating Temperature: 0°C to 70°C
  • Plug and Play & Hot-Pluggable Design：The network transceiver requires no software configuration, network downtime, or reboots. Simply insert the 1000Base-SX module into a compatible SFP port, connect an LC Ethernet cable, and it's ready to go—enabling rapid network upgrades
  • Multi-Brand Compatibility：Our Duplex LC 1G-T-S module transceivers for Cisco, for Ubiquiti, for MikroTik, for Meraki, for Netgear, for D-Link, for Fortinet, for Supermicro, for Broadcom, for HPE Aruba, for TP-Link and most open switches, ensuring seamless integration
  • Premium Build & Reliability: Crafted with a premium copper housing and advanced chips, this 1.25G gigabit multimode fiber module delivers exceptional durability and interference resistance, ensuring long-term stable operation
  • Reliable Service: Every LC-1.25G-550M-850nm copper module undergoes rigorous individual testing before leaving our factory. Note: This copper transceiver utilises upgraded chips, which may generate heat during operation. This is normal behaviour
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SKU: B0GDCT824J
Weight: 120 g
Dimensions: 5.99 x 1.52 x 0.25 cm; 120 g
Brand: XHEAITIH
Manufacture: He'Ai Technology Co., Ltd.

Product Description

Upgrade your network with a trusted, compatible, and future-ready SFP2 Pack 1000Base-SX SFP LC Transceiver 1.25G Multimode Optical Module for Cisco Ubiquiti MikroTik Mer2 PCS LC 1000Base-SX：The LC optical module supporting 1.25G rate transmission. As an SFP transceiver

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