• HYTOPTODEVICE SFP-25G-ESR Huawei compatible 25G SFP28 Module 25G eSR 850nm LC multimode white background front bulk shot
  • 25GBASE-eSR 25G SFP28 Module huawei compatible
  • DDM hot swappable 25G SFP28 Module gold pin side for huawei port
  • HYTOPTODEVICE huawei 25G SFP28 Module leaf-spine data center rack deployment white label close-up
  • HYTOPTODEVICE SFP-25G-ESR Huawei compatible 25G SFP28 Module 25G eSR 850nm LC multimode white background front bulk shot
  • 25GBASE-eSR 25G SFP28 Module huawei compatible
  • DDM hot swappable 25G SFP28 Module gold pin side for huawei port
  • HYTOPTODEVICE huawei 25G SFP28 Module leaf-spine data center rack deployment white label close-up

SFP-25G-ESR Huawei Compatible 25G SFP28 Module | 25GBASE-ESR 850nm 300m Bulk Factory Wholesale | HYTOPTODEVICE

Factory wholesale Huawei compatible SFP-25G-ESR 25G SFP28 Module, 850nm multimode eSR transceiver, max 300m transmission over OM4 fiber. Plug-and-play for Huawei CloudEngine series switches, full DDM DOM monitoring, MSA & RoHS compliant. Free Huawei exclusive EEPROM customization for enterprise data center network bulk upgrade.
NO. Brand  Compatible P/N Remarks
1 Cisco  SFP-10/25G-CSR-S 
2 Arista Networks  25GBASE-MR-XSR
3 HPE Aruba  JL485A
4 Huawei   SFP-25G-ESR
Description
SFP-25G-ESR Huawei Compatible 25G SFP28 Module | 25GBASE-eSR 850nm 300m OM4 LC Multimode | HYTOPTODEVICE

Product Overview

HYTOPTODEVICE SFP-25G-ESR serves as a fully compatible replacement for Huawei original 25G multimode transceivers. It is a standard 25G SFP28 Module that complies with IEEE 25GBASE-eSR and SFP28 MSA standards for universal device compatibility.
It adopts an industrial 850nm VCSEL laser and duplex LC/UPC interface, delivering stable 25.78125Gbps full-duplex transmission. With RS-FEC enabled, it supports 300m transmission on OM4 fiber and 200m on OM3 fiber. featuring ultra-low power consumption (≤1.0W) and a compact SFP28 form factor. It adapts to dense cabinet deployment in Huawei data centers.  DDM/DOM supported.
Pre-flashed with exclusive Huawei EEPROM firmware, this 25G SFP28 Module supports true plug-and-play operation. fully compatible with Huawei CloudEngine switches, 25G server HBAs and storage uplink devices.Support bulk wholesale,private label and OEM to global importers,distributors.

Key Technical Specifications

Every 25G SFP28 Module undergoes 100% full testing before delivery. Each unit completes optical parameter calibration, sensitivity testing, 72-hour high-temperature aging and real Huawei device compatibility verification. Strict batch quality control guarantees stable operation for large-scale Huawei network deployment.
Huawei Compatible SFP-25G-ESR Vendor Name HYTOPTODEVICE
Form Factor SFP28 Max Data Rate 25Gbps
Wavelength 850nm Max  Distance 300m@OM4/200m@OM3
Connector Duplex LC Transmitter Type VCSEL
Cable Type MMF Receiver Type PIN
TX Power -6.4~+2.4dBm Receiver Sensitivity < -11.9dBm
Max. Power Consumption ≤1W DOM/DDM   Fully Supported
Protocols SFF-8472, SFF-8024, SFF-8431, SFF-8432 Operation Temperature 0 to 70°C (32 to 158°F)


Usage Guidelines & Best Practices

Standard installation and maintenance practices extend module service life. They also ensure stable, low-latency transmission on Huawei networks. All operations follow SFP28 MSA and Huawei official standards to avoid packet loss, link flapping and hardware damage.

1. Anti-Static Handling Protection

The module’s laser chip and PCB are sensitive to static electricity. Static discharge causes permanent damage. Wear ESD anti-static wristbands and gloves before installation. Do not touch gold pins and optical end faces directly.

2. Optical Port & Fiber Cleaning Maintenance

Dust and stains cause high optical loss and unstable links. Keep dust caps on idle ports. Clean LC fiber end faces with professional tools before docking. Regular cleaning eliminates packet loss risks for long-running links.

3. Standard RS-FEC Port Configuration

RS-FEC error correction is key to 300m long-distance transmission. Enable RS-FEC on Huawei switches for long multimode links. It corrects transmission bit errors, improves link margin and achieves rated transmission distance stably.

4.Professional Fiber Grade Matching Rules

This module only supports OM3, OM4 and OM5 multimode fiber. OM1/OM2 old fiber and single-mode fiber cannot meet 25G bandwidth demands and cause severe attenuation. It only matches standard LC/UPC cables, not APC polished cables.

5. Standard Hot-Swap Operation Rules

The module supports MSA-compliant hot-swap. Users can plug and play without powering off Huawei switches. Avoid frequent repeated plugging to prevent gold pin wear and port fatigue, extending device and module service life.

6. Professional Laser Safety Specification

This is Class 1 eye-safe laser equipment. Do not stare at powered optical ports. Store idle modules in dry, dust-proof and constant-temperature environments. Avoid high temperature, humidity and strong electromagnetic interference.


Full Compatibility List & Supported Devices

1. Compatible Huawei Device Models

It fully supports VRP 5.10, VRP 6.0, VRP 8.0, VRP 8.1 and subsequent updated versions. Exclusive EEPROM write protection avoids data loss during firmware upgrades and ensures permanent stable compatibility.
Compatible Huawei Hardware Full Model List:
Data Center Leaf-Spine Switches
• Huawei CloudEngine 16800 / 12800 Core Switches
• Huawei CloudEngine 6800 / 5800 25G Leaf-Spine Switches
Enterprise Campus Aggregation Switches
• Huawei S5735-S/S5755 Series Multi-Gigabit Switches
• Huawei S6730 High-Speed Aggregation Switches
Peripheral Compatible Devices
• Huawei 25G Server HBAs & Storage NICs
• Enterprise SAN Storage Controller Uplinks
• Standard SFP28 Multimode Media Converters

2.Multi-Brand Cross Compatibility

This universal 25G SFP28 Module adapts to mixed-brand campus, storage and data center networks. It supports two compatibility modes to match different brand device authentication rules.
• Open-Brand Compatibility Works plug-and-play without custom coding for MSA standard open gear: MikroTik, TP-Link, D-Link, Fortinet, Zyxel 25G switches & server HBAs.
• Locked-Brand Compatibility Adaptable to locked enterprise hardware including Cisco, Juniper, Arista, HPE, H3C, Huawei, Dell, Custom EEPROM programming eliminates system recognition warnings.

3. Free Custom EEPROM & Bulk OEM Service

We provide free one-stop customization for bulk orders. We program exclusive SFP-25G-ESR EEPROM data to match Huawei VRP system identification rules. We also support OEM packaging, personalized labeling and parameter tuning. Bulk orders enjoy factory direct prices, sufficient spot inventory and priority delivery for engineering and stocking needs.

Primary Application Scenarios
HYTOPTODEVICE SFP-25G-ESR 25G SFP28 Module is a cost-effective alternative to Huawei original transceivers. It fixes the short-distance defect of ordinary 25G SR modules. It suits Huawei data center leaf-spine networking, campus core aggregation, legacy network upgrades and high-density breakout deployment.
  • Huawei Data Center Leaf-Spine Networking Suitable for 25G interconnection between CloudEngine spine and leaf switches, as well as server and storage 25G uplinks. Low-latency transmission meets cloud data center and virtual service high-reliability demands.
  • 100G to 25G High-Density Breakout Networking Works with 100G QSFP28 SR4 breakout cables for 1-to-4 25G channel splitting. It improves Huawei 100G port utilization and cuts cabling and device costs for multi-tenant data center expansion.
  • Legacy 10G Network Phased Upgrade Compatible with existing OM3/OM4 multimode fiber. No large-scale wiring replacement required. It supports seamless 10G-to-25G upgrade, saving renovation cost and shortening project cycle.
  • Enterprise Campus Long-Distance Uplink 300m OM4 ultra-long transmission fixes ordinary 25G SR distance shortages. Perfect for cross-building uplinks and core aggregation of enterprise, park and campus networks.
  • Project Bulk Procurement & Distributor Stocking Ideal for engineering integrator bulk orders and daily stocking. Flexible OEM and batch discount policies fully meet government and enterprise network construction procurement demands.


Connectivity Solutions(Applications)

1. 25G Switch-to-Switch Leaf-Spine Interconnection Solution

Deploy paired SFP-25G-ESR modules to build 25G full-duplex links between Huawei leaf and spine switches. Enable RS-FEC function for stable 300m OM4 transmission. Its low latency and strong anti-interference capability perfectly fit Huawei cloud data center EVPN leaf-spine architecture.
SFP28 SR 25G to 25G switch-switch multimode fiber networking diagram for hpe aruba data center

2. 25G Switch-to-Server HBA Access Solution

Match Huawei SFP28 switch ports with 25G server HBA cards and storage controller ports. Stable optical output and high receiving sensitivity prevent link flapping and packet loss. It works well for virtual machine clusters and SAN storage uplink scenarios.
25G SFP28 dual-rate transceiver 25G Cisco leaf-spine switch to 10/25G server HBA multimode cabling layout

3.100G QSFP28 SR4 to 4×25G Breakout Split Solution

Cooperate with 100G QSFP28 SR4 breakout cables to split one 100G port into four independent 25G channels. This 25G SFP28 Module fully matches Huawei breakout protocol with zero system alarms. It improves port utilization and cuts overall networking costs for data center upgrades.
25G SFP28 dual-rate transceiver 100G QSFP28 breakout 4x25G Arista leaf-spine switch interconnection cabling diagram

The Core Features

1. Smooth 100G/25G Network Compatibility Upgrade

It supports seamless 10G-to-25G/100G network upgrades without replacing existing OM3/OM4 fiber resources. It works with 100G SR4 breakout cables for 1-to-4 25G channel splitting. The 300m ultra-long transmission distance covers Huawei data center interconnection and campus long-link scenarios, enabling low-risk and low-cost network iteration.
.

SFP28 SR partial 100G equipment upgrade compatible with existing 25G network diagram

2.  Low-Power High-Density 25G Fast Deployment

Ultra-low power consumption (≤1.0W) reduces cabinet heat load and data center power consumption. The compact SFP28 form factor supports high-density port deployment on CloudEngine switches. Hot-swap design enables fast batch 25G link deployment and improves overall network expansion efficiency.
Low power high density SFP28 SR 25G high-speed transmission data center rack layout

3.Strict Hardware Compatibility Verification

All modules are pre-flashed with Huawei VRP-certified EEPROM firmware. Professional write protection prevents data loss during system upgrades. Every unit passes real-machine tests on full-series Huawei switches and mainstream firmware versions, achieving stable zero-alarm and zero-lock operation with wide cross-brand compatibility.

25G SFP28 dual-rate transceiver batch real Cisco Nexus leaf-spine switch hardware compatibility test bench photo

4. Full-Factor Testing Boosts Operational Reliability

Every 25G SFP28 Module undergoes comprehensive factory testing, including optical calibration, sensitivity detection, 72-hour high-temperature aging and Huawei real-machine verification. Strict quality screening ensures consistent batch performance. The built-in DDM system monitors operating status in real time. Industrial anti-interference design effectively reduces on-site failure rates and O&M costs.
25G SFP28 dual-rate transceiver full standardized factory comprehensive testing production flow chart


FAQ

Q1: Do these modules support FEC (Forward Error Correction)?

A1: Yes. Our HYTOPTODEVICE 25G SFP28 modules fully support RS-FEC forward error correction. Enabling this feature boosts link anti-interference performance, corrects transmission bit errors, and stably supports the full 300m OM4 long-distance transmission distance. It ensures ultra-stable links for Huawei data center and campus network deployment.

Q2: How do I resolve a "Port Unrecognized/Unsupported Transceiver" error?

A2: This common error stems from generic modules with mismatched or incomplete EEPROM firmware. Our factory pre-flashes exclusive Huawei VRP-certified firmware for all modules, with built-in write protection to prevent data loss during system upgrades. Our modules achieve true plug-and-play, zero alarms and no port lockdown on all Huawei devices.

Q3: Can I pair a 25G SR module with a 25G LR module on the same link?

A3: No, cross-model pairing is not supported. 25G SR multimode and 25G LR single-mode modules adopt different wavelengths and fiber adaptation standards. Mixed pairing causes severe optical attenuation, continuous packet loss and link instability. For normal operation, both link ends must use identical HYTOPTODEVICE module models.

Q4: Can I breakout a 100G QSFP28 SR4 into four 25G SFP28 SR links?

A4: Fully supported. Our SFP-25G-ESR modules perfectly match Huawei official 100G SR4 breakout protocols. They enable stable 1-to-4 25G channel splitting without extra configuration or system alarms. This solution maximizes 100G port utilization and effectively reduces overall data center networking costs.

Q5: Why are my 25G SR modules running extremely hot?

A5: Excessive heat is caused by low-grade chips and unreasonable circuit design in inferior generic modules. Our HYTOPTODEVICE modules adopt optimized low-power architecture, with power consumption controlled ≤1.0W. Industrial-grade PCB design greatly reduces heat generation, avoiding overheating failures during long-term high-density rack operation.

Q6: How does electromagnetic interference (EMI) affect SFP28 SR modules?

A6: Strong cabinet electromagnetic interference easily causes link flapping, random packet loss and unstable transmission for ordinary modules. Our 25G SFP28 modules adopt professional anti-EMI shielding structure and standardized layout. They pass strict anti-interference tests, adapting to complex industrial cabinet environments and maintaining long-term stable transmission.

Q7: What testing standards should the vendor provide?

A7: As a professional manufacturer, we implement full standardized testing. All modules comply with IEEE 25GBASE-eSR and SFP28 MSA industry standards. Each product completes optical parameter calibration, sensitivity testing, 72-hour high-temperature aging and real Huawei device compatibility tests. We provide complete test reports and certification documents for project acceptance.

Q8: Are these modules MSA (Multi-Source Agreement) compliant?

A8: 100% MSA compliant. Our modules fully meet SFP28 MSA specifications in mechanical dimensions, electrical signals and DDM diagnostic protocols. This guarantees universal interoperability with all standard SFP28 ports, supporting seamless deployment for Huawei and multi-brand network devices.

Q9: Is it safer to buy OEM-branded modules or third-party compatible modules?

A9: Our factory direct third-party modules are safer and more cost-effective than expensive OEM modules. We provide free customized EEPROM adaptation for Huawei systems, with write-protection firmware and full batch testing. Our products deliver the same stable zero-alarm performance as original OEM modules at a lower procurement cost.

Q10: What is the optical transmitter type used in SFP28 SR?

A10: Our SFP-25G-ESR modules adopt industrial-grade 850nm VCSEL laser transmitters. This core component features stable optical power output, low signal fluctuation and high receiving sensitivity. It meets Class 1 laser safety standards, supporting reliable long-distance 25G multimode transmission for Huawei network systems.

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.

  • Up to 70% cost savings vs OEM, transparent pricing & flexible bulk rates, supported quality returns
  • 100% real-device compatible with Cisco, Huawei,Dell,Juniper, and Arista
  • ISO 9001:2015 Shenzhen factory, full lineup: 1.25G/10G/25G/40G/100G/200G/400G/800G/1.6T transceivers
  • Ample stock, fast global DHL/FedEx shipping in 3–5 working days
  • Free pre-sales engineering support for custom EEPROM  & private label firmware
  • Real switch test videos available for pre-purchase review; inspection & shipping videos provided per order 


“Phenomenal performance. We deployed 200 HYTOPTODEVICE SFP modules to replace Cisco OEMs in our backbone network. Result? Zero compatibility issues and a 60% reduction in costs. Highly recommended for mission-critical networks."— Senior Network Engineer, Regional Telecom, Australia


Quality Certification & Compliance

 At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final visual inspection, from IQC、IPQC、FQC to OQC, 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.


hytoptodevice 10g sfp+ bidi transceiver testing certification

Rigorous Industrial Product Testing

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100% 3rd Party Compatible
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  • HYTOPTODEVICE SFP-25G-ESR Huawei compatible 25G SFP28 Module 25G eSR 850nm LC multimode white background front bulk shot
  • 25GBASE-eSR 25G SFP28 Module huawei compatible
  • DDM hot swappable 25G SFP28 Module gold pin side for huawei port
  • HYTOPTODEVICE huawei 25G SFP28 Module leaf-spine data center rack deployment white label close-up

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