| 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 H3C SFP-GE-LH120-SM1550 compatible SFP is rigorously verified for the following platforms:
H3C S-Series Switches: S5120, S5130, S5500, S5560, S5800, S5820V2, S6800, S7500E, S10500.
H3C Core Chassis: S12500, S12500G-AF, S12500R.
H3C Routers: MSR 810, 2600, 3600 series, and SR6600, SR8800 high-end routers.
Note: Our modules are coded to bypass H3C "Check Transceiver" alarms for seamless "Plug-and-Play" operation.
ISP Long-Haul Backhaul: Connecting regional points of presence (PoP) across 100km+ distances without intermediate amplification.
Campus Interconnectivity: Linking geographically dispersed university or corporate buildings via leased dark fiber.
Metropolitan Optical Networks: Serving as the 1G uplink for remote edge switches in large-scale city deployments.
| H3C Compatible | SFP-GE-LH120-SM1550 | 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) |

Is this module compatible with the latest H3C Comware V7 software? Yes. HYTOPTODEVICE modules are programmed with the specific H3C vendor signature to ensure full compatibility with Comware V5 and V7.
Does H3C SFP-GE-LH120-SM1550 support DDM? Yes, it supports Digital Diagnostic Monitoring, allowing you to view optical power levels and temperature via the display transceiver diagnosis command.
Why do I need 1550nm for 120km instead of 1310nm? 1550nm has significantly lower attenuation (signal loss) in fiber, which is critical for maintaining signal integrity over distances exceeding 40km.
Can I connect two H3C 120km modules directly? No. You must use an optical attenuator (15dB-20dB) for short-range testing to avoid burning out the sensitive APD receiver.
What is the lead time for HYTOPTODEVICE H3C modules? We maintain constant stock for H3C compatibles; orders typically ship within 24 hours.
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.









