| NO. | Brand | Compatible P/N | Remarks |
| 1 | Cisco | GLC-EX-SMD | |
| 2 | Alcatel-Lucent | SFP-GIG-LH40 | |
| 3 | NVIDIA/Mellanox | MFE1P00-EX-CM | |
| 4 | Arista Networks | SFP-1G-EX-40 | |
| 5 | Juniper Networks | SFP-1GE-EX-40 | |
| 6 | Huawei | S-SFP-GE-LH40-SM1310 | |
| 7 | Brocade | E1MG-EX-40 | |
| 8 | H3C | SFP-GE-LH40-SM1310 |
| Brocade Compatible | E1MG-EX-40 | Vendor Name | HYTOPTODEVICE |
| Form Factor | SFP | Max Data Rate | 1.25Gbps |
| Wavelength | 1310nm | Max Distance | 40km |
| Connector | Duplex LC | Transmitter Type | 1310nm DFB |
| Cable Type | SMF | Receiver Type | PIN |
| TX Power | -5.0~0dBm | Receiver Sensitivity | < -23.0dBm |
| Protocols | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 | Operation Temperature | 0 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 40km optical transceivers are fully tested and certified to work seamlessly with the following Brocade equipments:
Brocade/Ruckus ICX Series: ICX 6430, ICX 6450, ICX 6610, ICX 7150, ICX 7250, ICX 7450, ICX 7750.
Brocade VDX Series: VDX 6710, VDX 6720, VDX 6730, VDX 6740.
Brocade FCX & FastIron Series: FCX624, FCX648, SX-FI424.
Brocade CES/CER Series: NetIron CES 2000, CER 2000.
Main Application Scenarios of Fiber Connection Module
Campus Core Extensions: Connecting distributed networking closets in large universities or corporate campuses over fiber spans up to 40km.
Metropolitan Networking: Linking remote branch offices to the central data center where standard 10km (LX) reach is insufficient.
Service Provider Aggregation: Providing reliable 1.25G fiber handoffs for regional ISPs and telecommunications infrastructure.


Q1: Can the Brocade E1MG-EX-40 operate inside a 10G SFP+ port slot?
A1: Yes. The E1MG-EX-40 is 1G SFP 40KM Transceiver. using a standard 1000BASE-X framework, That is structurally compatible with most 10G SFP+ uplink cages on ICX platforms. To lock the connection on an active switch, you simply need to access the target interface and drop the line rate manually using the command: speed-duplex 1000-full.
Q2: What is the main difference between Brocade E1MG-LX-OM and E1MG-EX-40?
A2: Link reach and optical launch power. The standard E1MG-LX-OM (LX metric) operates via a lower-power laser tuned to clear maximum distances of 10km. The E1MG-EX-40 leverages an amplified DFB laser layout that enables the module to safely traverse up to 40km over the same Single-Mode fiber paths.
Q3: Does the E1MG-EX-40 support multi-mode legacy fiber infrastructures?
A3: No. The E1MG-EX-40 is built strictly for Single-Mode Fiber (SMF). Attempting to pass its highly concentrated, high-power 1310nm laser down a Multi-Mode (OM1/OM2/OM3/OM4) line will generate catastrophic modal dispersion and immediately fail to complete a stable link.
Q4: Do I need to deploy inline optical attenuators for testing environments?
A4: Yes, an inline attenuator is required for short loops. Because this transceiver uses an amplified transmitter to push data across 40km, its optical launch output is intense. Connecting two EX-40 modules directly on a test bench using a short patch cable without a 5dB to 10dB optical attenuator will risk overloading and permanently damaging the delicate photodiode receiver circuit.
Q5: Can this module down-negotiate to Fast Ethernet (100Mbps) speeds?
A5: No. The E1MG-EX-40 is a fixed-rate 1G optic. It does not feature multi-rate mechanics to shift down to 10M or 100M speeds. The remote terminal engine at the other end of the line must be configured as a fixed 1Gbps long-haul fiber optic transceiver.
Q6:How to choose the right 1g 40km optical transceiver?
A6:(1)Confirm transmission distance needs:for links greater than 20 kilometers and less than 40 kilometers,1000BASE-EX SFP transceiver is the most cost-effective choice.(2)match device brand and port type:confirm the switch brand and port specification before purchase to ensure the transceiver is fully compatible and avoid compatibility risks;(3)Balance performance and budget:compared with expensive OEM original modules, qualified third-party 1.25g sfp ex transceiver can reduce costs by 70%-90% while maintaining the same performance.
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.
"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.






