• Cisco SFP-1G-SX Compatible 1000BASE-SX  550m SFP Optical Transceiver Module | HYTOPTODEVICE
  • Cisco SFP-1G-SX Compatible 1000BASE-SX  550m SFP Optical Transceiver Module | HYTOPTODEVICE
  • Cisco SFP-1G-SX Compatible 1000BASE-SX  550m SFP Optical Transceiver Module | HYTOPTODEVICE
  • Cisco SFP-1G-SX Compatible 1000BASE-SX  550m SFP Optical Transceiver Module | HYTOPTODEVICE
  • Cisco SFP-1G-SX Compatible 1000BASE-SX  550m SFP Optical Transceiver Module | HYTOPTODEVICE
  • Cisco SFP-1G-SX Compatible 1000BASE-SX  550m SFP Optical Transceiver Module | HYTOPTODEVICE
  • Cisco SFP-1G-SX Compatible 1000BASE-SX  550m SFP Optical Transceiver Module | HYTOPTODEVICE
  • Cisco SFP-1G-SX Compatible 1000BASE-SX  550m SFP Optical Transceiver Module | HYTOPTODEVICE

Cisco SFP-1G-SX Compatible 1000BASE-SX 550m SFP Optical Transceiver Module | HYTOPTODEVICE

High-performance sfp transceiver with 550m reach over MMF. SFP  form factor, Duplex LC connector,100% compatible with Cisco SFP-1G-SX and other mainstream brands. No firmware changes needed,right out of the box. Equivalent to the OEM,Save more brand premium for your project. see the compatible list.
NO. Brand  Compatible P/N Remarks
1 Cisco SFP-1G-SX
2 Arista Networks  SFP-1G-SX 
3 Huawei   eSFP-GE-SX-MM850
4 Juniper  EX-SFP-1GE-SX
5 Brocade  E1MG-SX-OM


Description
What Is Cisco Compatible SFP-1G-SX Optical Transceiver?
SFP Transceiver | Cisco Compatible 1000BASE-SX  Optical Transceiver Module(MMF, 850nm, 550m, LC, DOM) | HYTOPTODEVICE
 The SFP-1G-SX is a high-performance, Cisco-compatible  sfp optical transceiver. Featuring a hot-pluggable SFP form factor, it operates at a fixed 1Gbps line rate over a 850nm wavelength to transmit data, transmission up to 550m over multi-mode fiber (MMF) vias Duplex LC connector. With high-density networking and low power consumption, this optical module provides highly stable Internet Service Provider (ISP) Gigabit Ethernet communication links, Enterprise LAN & SAN Networks, Data Center LAN & SAN Networks and other optical links. Compliant with both the SFP Multi-Source Agreement (MSA) and IEEE 802.3ah-2004. DOM supported.

Key Technical Specifications of 1000BASE-EZX Optical Transceiver

Cisco Compatible   SFP-1G-SX Vendor Name HYTOPTODEVICE
Form Factor SFP Max Data Rate 1.25Gbps
Wavelength 850nm Max Distance 550m over OM2 MMF
Connector Duplex LC Transmitter Type 850nm VCSEL
Cable Type MMF Receiver Type PIN
TX Power -9.0~-3dBm Receiver Sensitivity < -18.0dBm
Protocols SFF-8472 MSA Compliant, IEEE 802.3ah-2004 Operation Temperature 0°C to 70°C (32 to 158°F)

Full Compatibility List and Supported Devices of  Fiber Optic Transceiver
    One of the biggest advantages of third-party optical transceiver is their strong brand compatibility,which helps enterprises cut hardware costs without sacrificing performance.Our 1G SFP  optical transceivers are fully tested and certified to work seamlessly with the Cisco equipments:

  • Cisco Catalyst 2960 Series: WS-C2960-24TC-L, WS-C2960G-24TC-L, WS-C2960S-48FPD-L, WS-C2960X-24PD-L

  • Cisco Catalyst 3560 & 3650 Series: WS-C3560G-24TS, WS-C3560X-48T-S, WS-C3650-24TD-E

  • Cisco Catalyst 3750 & 3850 Series: WS-C3750G-48TS, WS-C3750X-24T-S, WS-C3850-24T-E

  • Cisco Catalyst 9200 & 9300 Series: C9200-24T, C9200L-48P-4X, C9300-24T, C9300-48U

  • Cisco ASR & ISR Router Series: ASR 901, ASR 1001-X, ISR 4331, ISR 4451-X

  • Cisco Nexus Series: Nexus 3048, Nexus 93180YC-FX

Main Application Scenarios of Fiber Connection Module

  • Intra-Data Center Connections: Patching core switches to top-of-rack (ToR) or end-of-row (EoR) servers within the same or adjacent server racks.

  • Local Enterprise Local Area Networks (LANs): Linking desktop workstations, distribution switches, and multi-floor office building backbones using multi-mode fiber infrastructure.

  • Campus Building Interconnects: Bridging closely situated structures, labs, or warehouses within a campus cluster where the distance is under 550 meters.

  • Storage Area Networks (SAN): Interconnecting high-speed network storage arrays and storage controllers directly into the data matrix.


Connectivity Solutions(Applications) of Pluggable Transceiver




FAQ for Transceiver Module

  • Q1: What is the maximum distance supported by the Cisco SFP-1G-SX compatible module?
    A1: It supports up to 220m over legacy OM1 (62.5/125µm) fiber, up to 550m over standard OM2 (50/125µm) fiber, and up to 1km over optimized OM3/OM4 laser-optimized multi-mode fiber.

  • Q2: Do I need to use an optical attenuator with this short-range module?
    A2: No, you do not need an attenuator. The output power is intentionally mapped for short distances and will not saturate or damage the receiver.

  • Q3: What is the difference between SFP-1G-SX and GLC-SX-MMD?
    A3: Both offer identical 1G 850nm 550m multi-mode performance, but the GLC-SX-MMD variant includes Digital Optical Monitoring (DOM) telemetry, whereas the standard historical SFP-1G-SX often does not.

  • Q4: What wavelength does the SFP-1G-SX operate on?
    A4: It operates on a short-wave 850nm infrared light spectrum.

  • Q5: Can I use this transceiver with Single-Mode Fiber (SMF) patch cables?
    A5: No, it is designed exclusively for Multi-Mode Fiber (MMF). Using single-mode fiber will cause massive light loss and the link will stay down.

  • Q6: Is the SFP-1G-SX hot-swappable?
    A6: Yes, it is fully hot-pluggable. You can insert or extract the module without taking down the host hardware switch.


Why Network Engineers Choose HYTOPTODEVICE

HYTOPTODEVICE has supplied over 5000,000 optical transceiver modules to data centers, ISPs, and enterprise networks across 100+ countries since 2011. Every module undergoes a 72-hour burn-in test and full DDM/DOM validation before shipment.

  • 100% MSA-compliant modules with Cisco, Huawei,Dell,Juniper, and Arista compatibility
  • ISO 9001:2015 certified manufacturing facility in Shenzhen
  • Average lead time of 3–5 business days with DHL/FedEx express options
  • Dedicated pre-sales engineering support for custom configurations
  • Actual hardware,actual switches,actual results.we publish compatibility test video,eliminate compatibility anxiety. you can watch before you buy. 
  • We can provide inspection and shipping videos to make you feel as if you are right here with the product.

"We replaced 200 Cisco-branded SFPs with HYTOPTODEVICE equivalents across our spine layer — zero compatibility issues, 40% cost reduction."— Network Architect, Tier-2 ISP, Germany

Quality Certification & Compliance

 At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final inspection, our processes ensure global compliance and reliability.

We adhere to rigorous standards for our SFP modules and network solutions:

  • ISO 9001: Certified quality management and production consistency.

  • CE & FCC: Fully compliant for seamless Global Market Access.

  • RoHS: Committed to environmental responsibility and hazardous material control.

  • Proven Reliability: Rigorous testing to reduce compliance risk and ensure safety.

Certified Quality. Global Standards. Guaranteed Performance.




Rigorous Industrial Product Testing

   

100% 3rd Party Compatible

Partial Test Demonstration

Others

  • Cisco SFP-1G-SX Compatible 1000BASE-SX  550m SFP Optical Transceiver Module | HYTOPTODEVICE
  • Cisco SFP-1G-SX Compatible 1000BASE-SX  550m SFP Optical Transceiver Module | HYTOPTODEVICE
  • Cisco SFP-1G-SX Compatible 1000BASE-SX  550m SFP Optical Transceiver Module | HYTOPTODEVICE
  • Cisco SFP-1G-SX Compatible 1000BASE-SX  550m SFP Optical Transceiver Module | HYTOPTODEVICE

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