| NO. | Brand | Compatible P/N | Remarks |
| 1 | Cisco | GLC-EZX-SM-120 | |
| 2 | Alcatel-Lucent | SFP-GIG-EZX | |
| 3 | Arista Networks | SFP-1G-EZX-120 | |
| 4 | Brocade | E1MG-EZX-120 | |
| 5 | Juniper | SFP-1GE-EZX-120 | |
| 6 | ZTE | SFP-GE-S120K | |
| 7 | H3C | SFP-GE-LH120-SM1550 | |
| 8 | Dell | SFP-EZX-120 | |
| 9 | Extreme | 10064H-120 | |
| 10 | Huawei | eSFP-GE-ZX120-SM1550 | |
| 11 | Intel | E1G-SFP-EZX-120 | |
| 12 | IBM | E1G-SFP-EZX-120 | |
| 13 | Netgear | AGM731F-120 | |
| 14 | Ciena | XCVR-A10Y55-120 | |
| 15 | Adtran | 1200485G1-120 | |
| 16 | Calix | 100-01511-120 | |
| 17 | NVIDIA/Mellanox | MME1G20-EZX-120 | |
| 18 | Avaya | AA1419053-E6-120 |
The HYTOPTODEVICE Cisco GLC-EZX-SM-120 compatible SFP is rigorously verified for the following platforms:
Cisco Catalyst Switches: Fully compatible with 2960, 3650, 3850, 9200, and 9300 series.
Cisco Nexus Switches: Optimized for Nexus 3000, 5000, and 9000 series (using 1G breakout/mode).
Cisco Routers: Seamlessly works with ISR 4000, ASR 9000, and ASR 1000 series.
Smart Encoding: Precision-coded by HYTOPTODEVICE to bypass "Unknown Transceiver" errors. It is recognized as a native Cisco module, ensuring the port remains active without needing the service unsupported-transceiver command on most modern IOS-XE versions.
Metropolitan Backbone: Connecting disparate corporate headquarters or data centers across a city-wide reach via 120km Gigabit Ethernet SFP links.
Carrier Edge-to-Core: Providing a stable 1550nm SFP for ISP backhaul 120km links in telecommunications infrastructure.
Real-time Link Diagnostics: Integrated DDM/DOM allows for monitoring laser power and temperature directly from the Cisco CLI, essential for maintaining 120km SFP reliability.
Compliance: A Class 1 FDA Laser Safety certified SFP transceiver for Cisco, adhering to global environmental standards as a RoHS compliant 1550nm 120km SFP.
| Cisco Compatible | GLC-EZX-SM-120 | Vendor Name | HYTOPTODEVICE |
| Form Factor | SFP | Max Data Rate | 1.25Gbps |
| Wavelength | 1550nm | Max Distance | 120km |
| Connector | Duplex LC | Transmitter Type | 1550nm DFB |
| Cable Type | SMF | Receiver Type | APD |
| TX Power | 0~+5dBm | Receiver Sensitivity | < -32.0dBm |
| Protocols | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 | Operation Temperature | 0 to 70°C (32 to 158°F) |

Q: Is the GLC-EZX-SM-120 different from the standard GLC-ZX-SM?
A: Yes. The GLC-ZX-SM is typically rated for 70-80km. The GLC-EZX-SM-120 uses a more powerful laser and a more sensitive APD receiver to achieve 120km.
Q: Do I need an attenuator for this module?
A: Mandatory Warning: Because of the extremely high transmit power, you must use a 15dB - 20dB optical attenuator if testing on fiber spans shorter than 50km to avoid permanently damaging the optical receiver.
Q: Does this module support DDM on Cisco switches?
A: Yes, the HYTOPTODEVICE module fully supports DDM/DOM, allowing you to use the "show inventory" and "show interfaces transceiver" commands.
Quality Assurance:Your Trusted Optical Transceiver Source
HYTOPTODEVICE is a vertically integrated manufacturer of high-performance optical transceivers. By controlling core materials at the source, we ensure every SFP module meets the highest standards of reliability and customization.
Vertical Integration: In-house core material production ensures a stable, self-sufficient supply chain for all optical modules.
Total Traceability: End-to-end oversight from raw components to final transceiver assembly guarantees 100% controllability.
Bespoke Solutions: Expert-led R&D provides customized SFP transceiver designs tailored to your specific technical needs.
24-Hour Response: Our technical team guarantees a primary response to any inquiry or quality concern within 24 hours.
Carrier-Grade Quality. Factory-Direct Control. Rapid Response.
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,UL & 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.









