• HYTOPTODEVICE JL485A HPE Aruba compatible 25G SFP28 Module 25G eSR 850nm LC multimode white background front bulk shot
  • 25GBASE-eSR 25G SFP28 Module Aruba matching duplex LC port close-up
  • DDM hot swappable 25G SFP28 Module gold pin side for Aruba CX series SFP28 switch ports
  • HYTOPTODEVICE JL485A 25G SFP28 Module Aruba CX leaf-spine data center rack deployment white label close-up
  • HYTOPTODEVICE JL485A HPE Aruba compatible 25G SFP28 Module 25G eSR 850nm LC multimode white background front bulk shot
  • 25GBASE-eSR 25G SFP28 Module Aruba matching duplex LC port close-up
  • DDM hot swappable 25G SFP28 Module gold pin side for Aruba CX series SFP28 switch ports
  • HYTOPTODEVICE JL485A 25G SFP28 Module Aruba CX leaf-spine data center rack deployment white label close-up

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

Factory wholesale HPE Aruba compatible JL485A 25G SFP28 Module, 25GBASE-eSR multimode transceiver, max 300m transmission over OM4 fiber. Plug-and-play for Aruba CX switches, supports DDM DOM monitoring, MSA compliant. Free ArubaOS-CX EEPROM customization for enterprise 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
JL485A  HPE Aruba Compatible 25G SFP28 Module | 10/25GBASE-CSR 850nm 300m LC Multimode DDM | HYTOPTODEVICE

Product Overview

This HYTOPTODEVICE JL485A compatible 25G SFP28 Module is a direct replacement for HPE Aruba official modules. It complies with IEEE 25GBASE-eSR and SFP28 MSA industry standards.
Adopting 850nm industrial VCSEL laser and duplex LC/UPC interface, the module delivers stable 25.78Gbps full-duplex speed. It supports up to 300m transmission on OM4 multimode fiber and 200m on OM3 fiber with RS-FEC enabled.

The module features low power consumption (≤1.0W) and high-density design. It supports full DDM/DOM real-time monitoring for temperature, optical power and working voltage.
Pre-flashed with official ArubaOS-CX validated firmware, it achieves zero-alarm plug-and-play. It fits Aruba CX data center and campus switches, server HBAs and storage devices.
Ideal for legacy 10G fiber upgrade, 100G SR4 breakout networking and campus long-distance interconnection. We support bulk stock supply, free EEPROM calibration and OEM private label service for project procurement.

Key Technical Specifications

Every HYTOPTODEVICE 25G SFP28 Module undergoes 100% full-item factory testing. Each unit strictly passes transmit power detection, receiver sensitivity calibration, temperature cycle aging and protocol compatibility verification. Zero untested products are delivered, ensuring consistent quality and stable long-term operation for enterprise bulk deployment.
HPE Aruba Compatible JL485A 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

Standardized installation, maintenance and operation procedures are critical to extending the service life of JL485A 25G SFP28 Module and ensuring long-term stable low-latency transmission. All operation specifications comply with SFP28 MSA and ArubaOS-CX equipment maintenance standards, effectively avoiding link packet loss, flapping, optical attenuation overload and module hardware damage in data center and campus network scenarios.

1. Anti-Static Handling Protection

The transceiver’s laser diode and PCB circuits are highly sensitive to static electricity. Always wear a certified ESD anti-static wrist strap during installation, replacement and maintenance work inside Arista switch racks to prevent static discharge damage to internal hardware and preserve complete dual-rate module performance.

2. Optical Port & Fiber Cleaning Maintenance

Dust, oil stains and oxidation on fiber end faces and module LC ports are the main causes of increased optical loss and link instability. Keep the original dust protective caps covered on module optical ports during storage, idle standby and equipment shelving. Before cable docking, use professional fiber cleaning tools to thoroughly clean the duplex LC fiber end faces. Regularly inspect and clean active links in long-term operating equipment to avoid signal attenuation and packet loss caused by port contamination.

3. Standard RS-FEC Port Configuration

Enable RS-FEC forward error correction on Arista leaf-spine switch and server HBA ports to unlock the module’s full 25G rated transmission distance. FEC is not required for 10G mode operation; with RS-FEC activated, the transceiver stably reaches 200m on OM3 fiber and 300m on OM4 fiber to guarantee sufficient link margin for long-distance legacy structured cabling.

4.Professional Fiber Grade Matching Rules

This JL485A 25G SFP28 eSR module is specially designed for high-bandwidth multimode fiber transmission. It only supports OM3, OM4 and OM5 high-performance multimode fiber cables. Legacy low-bandwidth OM1/OM2 multimode fiber and single-mode fiber cannot meet 25G high-speed transmission bandwidth requirements, which will cause severe signal attenuation, link flapping and frequent disconnection. In addition, APC polished fiber cables are not applicable, only standard LC/UPC duplex multimode cables are supported.

5. Standard Hot-Swap Operation Rules

The module supports MSA-standard hot-swap plug-and-play for online network maintenance without powering off Arista switches. Avoid frequent repeated insertion and removal within a short time window, which causes mechanical abrasion to gold pins and host switch SFP28 ports, shortening overall service life in high-density leaf-spine racks.

6. Professional Laser Safety Specification

This product belongs to Class 1 eye-safe laser equipment, meeting international laser safety standards. However, to avoid accidental eye damage during equipment debugging and maintenance, do not stare directly at the powered module optical port and exposed fiber end face for a long time. Place idle modules in a dry and dust-proof storage environment, avoiding high temperature, humidity and strong electromagnetic interference environments to ensure stable product performance.


Full Compatibility List & Supported Devices

1. Compatible HPE Aruba Device Models

Fully compatible with all mainstream official stable firmware versions: ArubaOS-CX 10.0.x, 10.1.x, 10.2.x, 10.3.x, 10.4.x and subsequent iterative updated versions. Adopting exclusive EEPROM write protection technology, the customized module identification data will not be overwritten or cleared during switch firmware upgrade, ensuring permanent compatible operation.
Compatible Aruba Hardware Full Model List:
Data Center Leaf-Spine EVPN Switches
• Aruba CX 10000 Series (R8P13A, R8P14A) High-Density Data Center Switches
• Aruba CX 8325 Series 25G/100G Leaf-Spine Core Switches
• Aruba CX 8360 Series Enterprise-Grade EVPN Cloud Switches
Enterprise Campus Aggregation & Core Switches
• Aruba CX 6300M Series Multi-Gigabit Campus Core Aggregation Switches
Peripheral Compatible Devices
• Aruba Certified 25G Server HBAs & Storage Network Interface Cards
• Aruba SAN Virtual Storage Controller Uplink Ports
• Standard SFP28 Port Multimode Media Converters

2.Multi-Brand Cross Compatibility

This universal  25G SFP28 module supports mixed-vendor campus, storage and cloud data center network deployment, split into two hardware compatibility categories:
• 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 one-stop free customized services for all bulk procurement customers, supporting large-scale standardized deployment and personalized project customization. Free ArubaOS-CX exclusive EEPROM calibration and JL485A official model ID programming to ensure 100% matching with Aruba equipment firmware. Meanwhile, we support OEM private label packaging, customized product labeling and batch parameter fine-tuning. All bulk orders enjoy factory direct discount pricing, zero hidden service fees, sufficient spot inventory and priority production & delivery schedule to meet enterprise project tendering, large-scale network upgrading and distributor stocking demands.
All modules pass real-machine testing on official Aruba firmware. No alarms, no port lockdown, perfect plug-and-play compatibility.

Primary Application Scenarios
Cost-effective HPE Aruba JL485A   replacement 25G SFP28 for leaf-spine multi-tenant cloud & campus bulk procurement:
  • ArubaOS-CX  series leaf-spine switch to 25G server HBA interconnection & original JL485A stock bulk replenishment
  • Cooperates with 100G QSFP28 SR4 breakout cables to realize 1-to-4 25G channel splitting
  • Enterprise legacy OM3/OM4 multimode fiber backbone 10G to 25G mixed-rate network upgrade & capacity expansion
  • Low-latency HPC computing cluster and cloud storage replication transmission links
  • Multi-tenant cloud data center standardization project bulk tender procurement
  • Network equipment distributor wholesale stocking & customized OEM private label bulk orders


Connectivity Solutions(Applications)

1. 25G to 25G Switch-to-Switch Interconnection

Adopt paired HYTOPTODEVICE JL485A 25G SFP28 modules to build end-to-end 25G full-duplex high-speed links between Aruba CX leaf switches and spine core switches. Enabled with RS-FEC function, it ensures stable long-distance transmission within 300m OM4 fiber. It features ultra-low latency, strong anti-interference ability and zero-alarm compatibility, fully adapting to large-scale EVPN leaf-spine network architecture of enterprise cloud data centers.
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 Aruba CX switch SFP28 ports with 25G server HBA network cards and storage controller ports to realize high-speed access connection between equipment racks. The module’s stable optical power output and sensitive receiving performance effectively avoid link flapping and packet loss. It is suitable for high-density server rack access, virtual machine cluster deployment and SAN storage uplink transmission scenarios, improving overall data center transmission efficiency.
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 a single 100G uplink port into four independent 25G transmission channels. Our JL485A 25G SFP28 module perfectly matches the breakout protocol of Aruba switches, with no configuration modification and no compatibility alarm. This solution greatly improves core port utilization, reduces equipment investment and cabling costs, and is the optimal high-density networking solution for multi-tenant data center capacity expansion and upgrade.
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

This 25G SFP28 Module supports seamless phased upgrade of traditional 10G network to 25G/100G high-speed network without overall replacement of existing OM3/OM4 multimode fiber infrastructure. It perfectly matches 100G QSFP28 SR4 breakout cables to realize stable 1-to-4 25G channel splitting, maximizing the utilization of 100G core port resources. Different from regular 25G SR modules with only 100m OM4 transmission distance, this eSR extended model supports up to 300m long-distance transmission on OM4 fiber (RS-FEC enabled), fully covering large-scale data center leaf-spine interconnection and cross-building campus long-distance link scenarios, realizing low-cost and zero-risk network bandwidth iteration.
.

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

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

Designed with ultra-low power consumption (≤1.0W), this 25G SFP28 module effectively reduces cabinet heat load and overall power energy consumption during long-term operation. The compact standard SFP28 form factor supports high-density port deployment on Aruba CX series switches, making it ideal for dense rack layout of cloud data centers and multi-service convergence of campus core switches. It features fast hot-swap installation and zero complex configuration, supporting rapid batch deployment of 25G high-speed links and greatly improving the efficiency of enterprise network capacity expansion and project delivery.
Low power high density SFP28 SR 25G high-speed transmission data center rack layout

3.Strict Hardware Compatibility Verification

All JL485A modules are pre-flashed with exclusive ArubaOS-CX certified EEPROM firmware, specially customized for HPE Aruba equipment verification mechanism. Adopting professional EEPROM write protection technology, the programmed standard JL485A model identification data will not be overwritten or cleared during switch firmware iterative upgrades. Each product has passed real-machine plug-and-play verification covering full series of Aruba CX hardware and multiple mainstream firmware versions, achieving true zero-alarm, zero-port-lockdown and zero-error-log stable operation. In addition, it supports free customized coding for multi-brand locked equipment, realizing 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 single HYTOPTODEVICE 25G SFP28 Module undergoes 100% full-item factory inspection before delivery, covering optical transmit power calibration, receiver sensitivity testing, 72-hour full-load high-temperature aging test, temperature and humidity cycle test and real-machine compatibility verification. Strict defective product screening and batch quality control ensure consistent and reliable product performance.
25G SFP28 dual-rate transceiver full standardized factory comprehensive testing production flow chart


FAQ

Q1: Can I force this 25G SFP28 module to run at 10G speed on a 25G port?
A1: Our standard HYTOPTODEVICE 25G SFP28 Module runs native 25G speed only and cannot be forced to 10G. We provide custom firmware tuning for mixed-speed Aruba network projects, ideal for Aruba CX mixed-speed leaf-spine legacy fiber 25G SFP28 Module bulk procurement.

Q2: How to fix “Unrecognized/Unsupported Transceiver” errors on Aruba switches?
A2: Ordinary generic modules lack Aruba-certified EEPROM data and trigger alarms. Our JL485A compatible 25G SFP28 Module is pre-flashed with matched firmware for zero-alarm use. We offer free EEPROM correction for all bulk orders.

Q3: Can I pair a 25G eSR module with a 25G LR module on the same link?
A3">Not supported. eSR multimode and LR single-mode modules have different wavelengths and fiber standards. Mixing them causes severe signal attenuation and continuous packet loss. Both link ends need uniform HYTOPTODEVICE 25G SFP28 Module deployment.

Q4: Can 100G QSFP28 SR4 breakout into four 25G SFP28 links?
A4: Fully supported. Our 25G SFP28 Module perfectly matches 100G SR4 breakout cables to implement 4×25G high-density splitting. It greatly improves Aruba rack port utilization, suitable for multi-tenant enterprise cloud high-density breakout 25G SFP28 Module wholesale purchase.

Q5: Why do 100m OM4 fiber links still drop packets?
A5">Main causes: disabled RS-FEC, dirty fiber end faces, over-bent cables or non-compliant OM4 fiber. Our team provides free pre-deployment inspection for bulk orders to eliminate link failure risks.

Q6: Does this module support DDM/DOM monitoring?
A6: Yes. Every HYTOPTODEVICE 25G SFP28 Module integrates complete DDM/DOM function. It supports real-time monitoring of optical power, temperature and voltage via ArubaOS-CX CLI for fast troubleshooting.

Q7: How to solve DOM low signal or RX alarm issues?
A7: Low signal alarms are caused by dirty ports, curved cables or mismatched fiber grades. We provide free fiber cleaning kits for large batches to keep optical links stable.

Q8: What testing standards do your modules follow?
A8: All units comply with IEEE 25GBASE-eSR and SFP28 MSA standards. We provide complete test reports including optical parameters, aging records and compatibility certificates, meeting enterprise Aruba campus & leaf-spine cloud upgrade 25G SFP28 Module bulk tender orders quality requirements.

Q9: Are these modules MSA compliant?
A9: 100% MSA compliant in size, electrical signals and diagnostic protocols. It ensures universal interoperability with all standard SFP28 port devices.

Q10: Will switch firmware updates wipe module programmed codes?
A10: No. We adopt locked EEPROM write protection technology. Custom JL485A identification data will not be erased during ArubaOS-CX firmware upgrades, maintaining long-term zero-alarm operation.

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

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  • HYTOPTODEVICE JL485A HPE Aruba compatible 25G SFP28 Module 25G eSR 850nm LC multimode white background front bulk shot
  • 25GBASE-eSR 25G SFP28 Module Aruba matching duplex LC port close-up
  • DDM hot swappable 25G SFP28 Module gold pin side for Aruba CX series SFP28 switch ports
  • HYTOPTODEVICE JL485A 25G SFP28 Module Aruba CX leaf-spine data center rack deployment white label close-up

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