• HYTOPTODEVICE compatible 40G QSFP+ SR4 transceiver 850nm 150m MPO MMF
  • HYTOPTODEVICE 40GBASE‑SR4 VCSEL QSFP+ module MPO‑12 connector for  data‑center multi‑mode transmission
  • HYTOPTODEVICE zero‑alarm plug‑and‑play  qsfp+ sr4  replacement 40G SR4 optical transceiver
  • HYTOPTODEVICE zero‑alarm plug‑and‑play   qsfp+ 40g  replacement 40G SR4 optical module
  • HYTOPTODEVICE compatible 40G QSFP+ SR4 transceiver 850nm 150m MPO MMF
  • HYTOPTODEVICE 40GBASE‑SR4 VCSEL QSFP+ module MPO‑12 connector for  data‑center multi‑mode transmission
  • HYTOPTODEVICE zero‑alarm plug‑and‑play  qsfp+ sr4  replacement 40G SR4 optical transceiver
  • HYTOPTODEVICE zero‑alarm plug‑and‑play   qsfp+ 40g  replacement 40G SR4 optical module

HPE H3C JG325A Compatible 40G QSFP+ SR4 Module | 40GBASE‑SR4 QSFP+ 850nm 150m MPO MMF Bulk Factory Wholesale | HYTOPTODEVICE

Source budget-friendly HPE H3C JG325A replacement 40G QSFP+ SR4 transceiver direct from HYTOPTODEVICE manufacturer. 40GBASE-SR4 850nm VCSEL optic supports up to 150m over OM4 multi-mode fiber with MPO-12 connector. Pre-programmed EEPROM delivers alarm-free hot-plug for HPE FlexFabric and FlexNetwork Comware switches. Buy bulk wholesale, custom EEPROM and private label options available for system integrators, resellers and enterprise network buyers.
NO. Brand  Compatible P/N Transceiver Type
1 DELL  430-4593  QSFP-40G-SR4(Cisco)
2 EdgeCore  ET6401-SR4  QSFP-40G-SR4(Huawei)
3 Extreme 10319 QSFP-40G-IR4
4 HPE Aruba  JH231A  QSFP-40G-LG4
5 H3C  QSFP-40G-SR4-MM850  QSFP-40G-ER4
6 HPE BladeSystem  720187-B21 QSFP-40G-ZR4
7 HPE H3C  JG325A QSFP-40G-CSR4
8 F5 Networks  F5-UPG-QSFP+ 
Description

HPE H3C JG325A 40G QSFP+ SR4 Module | 40GBASE‑SR4 QSFP+ 850nm 150m MPO MMF Bulk Factory Wholesale | HYTOPTODEVICE

Product Overview

HYTOPTODEVICE 40G QSFP+ SR4 serves as drop-in replacement for HPE H3C JG325A transceiver. It adopts 850nm VCSEL parallel laser array, delivering 100m transmission on OM3 multi-mode fiber and up to 150m reach on OM4 multi-mode fiber with MPO-12 connector. Compliant with IEEE 802.3ba and QSFP+ MSA standards, preloaded HPE Comware EEPROM enables alarm-free hot swap and real-time DDM/DOM digital monitoring. This optic is ideal for HPE FlexFabric and FlexNetwork leaf-spine fabrics, aggregation trunks and rack server uplink connections. As a direct manufacturer and supplier, HYTOPTODEVICE provides bulk wholesale orders, custom EEPROM programming and private label services for global resellers, integrators and enterprise purchasers.

Key Technical Specifications 

 HPE H3C Compatible JG325A Vendor Name HYTOPTODEVICE
Form Factor QSFP+ Max Data Rate 41.25Gbps
Wavelength 850nm Max Distance 150m@OM4/100m@OM3
Connector MTP/MPO Transmitter Type VCSEL 850nm
Cable Type MMF Receiver Type PIN
TX Power -8.0~1.0dBm Receiver Sensitivity < -13dBm
Power Consumption ≤1.5W Modulation NRZ
Protocols IEEE 802.3 40GBASE-SR4, SFF-8436 Operation Temperature 0 to 70°C (32 to 158°F)


For detailed technical specifications, please refer to the Datasheet


Usage Guidelines & Best Practices

  • Fiber Choice: Only compatible with OM3 / OM4 multi‑mode MPO‑12 trunk cabling; single‑mode fiber cannot facilitate 850 nm SR4 operation and will produce link failure.

  • Distance Limit: 100‑metre maximum operating reach on OM3, 150‑metre maximum on OM4; excessive splice joints, dirty connector end‑faces or sharp fiber bends degrade practical transmission distances.

  • Cleanliness & Dust: Keep dust caps on whenever unattached. Clean fiber end-faces with a optical cleaning pen before insertion; dust causes over 80% of optical link failures.

  • Installation Specification: Hot‑plug supported; keep MPO connector end‑faces clean, observe minimum fiber‑bend radius requirements.

  • Port Configuration: Confirm host ports are set to 40G SR4 mode; do not mix SR4 with other 40G optical standards on the same link.
  • Operating Environment: Designed for commercial‑grade 0°C‑70°C ambient conditions; maintain adequate cabinet‑level airflow to prevent excessive module temperature build‑up.

For detailed operation instructions, please refer to the User Guide.


Full Compatibility List and Supported Devices 

1. Supported Hardware & Firmware

Pre-configured HPE Comware optimized EEPROM ensures stable plug-and-play operation for HPE FlexFabric and FlexNetwork switches. Every transceiver passes real machine testing to avoid link flapping and unsupported transceiver alerts.

Validated HPE H3C Platforms:
• HPE FlexFabric 5900, 5930, 5940 Series Data Center Switches
• HPE FlexNetwork 7500 Series Core Chassis Switches
• HPE Comware 12500 Series Routing Switches
• All HPE H3C network hardware with native QSFP+ 40GBASE-SR4 ports

2. Multi-Brand Cross Compatibility

Built to open MSA mechanical and electrical specifications, the compatible 40G QSFP+ SR4 transceivers support multi-vendor interoperability. They work reliably with Arista, Cisco, Dell, Brocade, NVIDIA-Mellanox and other mainstream network hardware, supporting mixed-vendor fabric design and phased data center upgrade plans.

3. Free Value-Added Services

  • Custom firmware for multi-device compatibility
  • Support sample testing before bulk orders for project pre-verification
  • Private-label customization and professional deployment guidanc
  • Strict batch consistency quality control
  • Free custom EEPROM programming for special and legacy network environments
  • Free EEPROM rewriting (Tools Included) with 24/7 Tech Support

Primary Application Scenarios

• Intra-data center short-distance leaf-spine fabric links built on HPE FlexFabric switching hardware
• 40G high-speed aggregation trunk expansion for large HPE FlexNetwork enterprise campus networks
• Top-of-Rack 40G uplinks connecting HPE Comware switches to virtualization and compute server clusters
• Rack-to-rack short multi-mode fiber interconnections inside server rooms
• Enterprise and MSP infrastructure upgrade and HPE FlexFabric network modernization projects
• Multi-vendor hybrid fabric deployments for cloud and virtualized workloads


Connectivity Solutions(Applications) 

1.40GbE Switch-to-Switch Connectivity


2.40GbE Structured Cabling Interconnect

HYTOPTODEVICE 40G high‑speed stacking module for  enterprise campus network upgrade

3.40GbE Switch-to-NIC Interconnection

HYTOPTODEVICE 40G switch‑to‑server NIC high‑speed uplink module for server cluster connections

4.Leaf-Spine Architecture
HYTOPTODEVICE 40G SR4 multi‑mode module for leaf‑spine data‑center deployment



The Core Feature

1. 40G Connectivity for Data Center

High speed, low overhead. The QSFP+ 40G module brings gigabit-class throughput to dense data center racks while drawing less power and taking up less space.


HYTOPTODEVICE 40G SR4 QSFP+ module helps reduce CAPEX for data‑center upgrade projects


2.
100% Compatibility-Tested for Reliable Deployment

Deploy with confidence: every 40G QSFP+ module is rigorously tested for compatibility in the target switch environment — no surprises, no downtime. Not sure it fits? Get our Compatibility Video on request.


HYTOPTODEVICE QSFP‑40G‑SR4 compatible transceiver with verified multi‑generation switch interoperability

3. 100% Individually Tested for Peak Performance

Every unit is tested individually — no sampling, no shortcuts — to ensure optical compliance and continuous operational stability. Curious how we do it? Take a virtual tour of our Test Center.

HYTOPTODEVICE 40G SR4 QSFP+ module comprehensive factory testing stable performance for various platforms bulk wholesale orders


FAQ 

Q1: How to troubleshoot unsupported transceiver warnings after installing HYTOPTODEVICE 40G QSFP+ SR4 on HPE FlexFabric Comware switches? A: This alert usually comes from vendor lock-in coding mismatch. Genuine HYTOPTODEVICE JG325A compatible modules include proper EEPROM coding; if warning persists, verify port settings, upgrade switch firmware or contact HYTOPTODEVICE for module recoding.

Q2: Can HYTOPTODEVICE 40G QSFP+ SR4 transceiver work with existing 10G SFP+ cables for phased HPE FlexFabric data center migration? A: Yes, with breakout cabling solution. The 40G SR4 port can be split to 4×10G links by MPO-to-4×LC breakout cable connected to SFP+ ports, enabling gradual network migration.

Q3: Which fiber types should be selected when deploying HYTOPTODEVICE JG325A compatible 40G QSFP+ SR4 for HPE enterprise data center? A: Multimode fiber only, OM3 or OM4 (OM5 also compatible on some platforms). It cannot run over single-mode fiber; single-mode links require 40G LR4 transceivers.

Q4: What power consumption should network planners expect for HYTOPTODEVICE 40G QSFP+ SR4 populated inside dense HPE FlexFabric switch racks? A: Typically 1.0–1.5W per module depending on temperature, well below MSA maximum limits, so it is safe for densely populated switch line cards.

Q5: What insertion loss and link budget values need to be calculated for HPE FlexFabric fiber plant design using HYTOPTODEVICE 40G QSFP+ SR4? A: 40GBASE-SR4 channel supports maximum insertion loss of roughly 1.9 dB including connectors and patch panels. Test and confirm your cable plant loss before field deployment.

Q6: Will deploying HYTOPTODEVICE 40G QSFP+ SR4 limit future 100G upgrade roadmap for HPE Comware network infrastructure? A: It is a 40G transceiver; existing OM3/OM4 fiber can often be reused for 100G SR4/SR10, but ports and transceivers need upgrading. Plan cabling with future bandwidth growth in mind.

Q7: Can existing on-site MPO trunk fiber be reused with HYTOPTODEVICE 40G QSFP+ SR4 during HPE FlexFabric network upgrade projects? A: Check fiber count, UPC polish and fiber polarity. Existing 12-fiber MPO trunks are often reusable, but verify insertion loss and polarity match SR4 requirements.

Q8: What risks will appear if mixing OM3 and OM4 multi-mode fiber segments within one physical link using HYTOPTODEVICE 40G QSFP+ SR4? A: It works, but maximum distance is limited by the shorter-grade OM3 segment, so the mixed link is rated at 100 meters maximum.

Q9: What compliance certificates can enterprise buyers obtain for HYTOPTODEVICE bulk ordered 40G QSFP+ SR4 optical transceivers? A: Available documents include CE, FCC, RoHS and REACH certification. HYTOPTODEVICE holds ISO9001 quality system; request certificates before placing large wholesale orders.

Q10: Does HYTOPTODEVICE 40G QSFP+ SR4 module have sufficient ESD protection during shipping and field handling for HPE FlexFabric installations? A: Yes, modules ship in anti-static packaging and support hot-swap with built-in ESD protection. Always ground yourself before touching optical components.

Q11: What stock availability and lead time for HYTOPTODEVICE JG325A compatible 40G QSFP+ SR4 bulk wholesale purchase orders? A: Standard SR4 models are normally in stock with 24–72 hour dispatch; custom coded or industrial temperature variants may require 1–3 weeks production lead time.

Q12: What payment terms and international Incoterm options does HYTOPTODEVICE accept for cross-border bulk procurement of 40G QSFP+ SR4? A: Accepted payment methods: T/T, PayPal, trade assurance for small orders; FOB, CIF and DDP shipping terms available. Confirm total landed cost including duties and taxes before order confirmation.

Q13: Are there unexpected customs charges when importing HYTOPTODEVICE 40G QSFP+ SR4 for HPE FlexFabric enterprise network projects? A: Import duties and taxes vary by destination country and Incoterm. Request DDP quotation if you want fixed all-in delivered price without surprise customs fees.

Q14: How can network administrators read real-time optical diagnostic data from HYTOPTODEVICE 40G QSFP+ SR4 installed on HPE Comware switches? A: Use Comware switch CLI commands such as show interface transceiver or show optics to view per-lane temperature, supply voltage, TX/RX optical power and alarm thresholds via DOM.

Q15: Is purchasing 40G QSFP+ SR4 still cost-effective while industry migrates toward 100G / 400G speeds for HPE FlexFabric networks? A: It remains fully supported and cost saving for existing 40G network environments. Your multimode fiber can be reused for future upgrades. Choose a reliable manufacturer like HYTOPTODEVICE for long-term spare stock supply.


Packaging & Custom OEM Solutions

Every 40G QSFP+ SR4 module ships in sealed ESD-safe packaging, ready for same-day dispatch. Bulk orders offer OEM customization—logo printing and private labeling—tailored for network distributors, integrators, and enterprise deployments.

cost‑effective 40G short‑reach optical module with custom package


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.

  • 100% MSA-compliant modules with Cisco, Huawei,Dell,Juniper, and Arista compatibility
  • ISO 9001:2015 certified manufacturing facility in Shenzhen
  • Average lead time of 3–5 business days with DHL/FedEx express options
  • Dedicated pre-sales engineering support for custom configurations
  • Actual hardware,actual switches,actual results.we publish compatibility test video,eliminate compatibility anxiety. you can watch before you buy. 
  • We can provide inspection and shipping videos to make you feel as if you are right here with the product.

“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.




Rigorous Industrial Product Testing

   

100% 3rd Party Compatible

Partial Test Demonstration

  • HYTOPTODEVICE compatible 40G QSFP+ SR4 transceiver 850nm 150m MPO MMF
  • HYTOPTODEVICE 40GBASE‑SR4 VCSEL QSFP+ module MPO‑12 connector for  data‑center multi‑mode transmission
  • HYTOPTODEVICE zero‑alarm plug‑and‑play  qsfp+ sr4  replacement 40G SR4 optical transceiver
  • HYTOPTODEVICE zero‑alarm plug‑and‑play   qsfp+ 40g  replacement 40G SR4 optical module