• HUAWEI QSFP-100G-LR4 Compatible 100G LR4 QSFP28 Transceiver 10km Bulk Wholesale | HYTOPTODEVICE
  • Front LC port view of 100G LR4 QSFP28 Transceiver 1300nm single-mode optic for HUAWEI QSFP-100G-LR4 OEM hardware replacement
  • Side profile MSA-certified 100G LR4 QSFP28 Transceiver for large-scale Huawei CloudEngine data center bulk upgrade projects
  • Rewritable Huawei VRP-compatible EEPROM 100G LR4 QSFP28 Transceiver for system integrator enterprise network customized deployment
  • EML laser integrated low-loss LAN-WDM 100G LR4 QSFP28 Transceiver for multi-vendor cross-data-center DCI interconnection
  • Internal chip close-up of DDM-enabled 100G LR4 QSFP28 Transceiver supporting full real-time optical power & temperature monitoring
  • HUAWEI QSFP-100G-LR4 Compatible 100G LR4 QSFP28 Transceiver 10km Bulk Wholesale | HYTOPTODEVICE
  • Front LC port view of 100G LR4 QSFP28 Transceiver 1300nm single-mode optic for HUAWEI QSFP-100G-LR4 OEM hardware replacement
  • Side profile MSA-certified 100G LR4 QSFP28 Transceiver for large-scale Huawei CloudEngine data center bulk upgrade projects
  • Rewritable Huawei VRP-compatible EEPROM 100G LR4 QSFP28 Transceiver for system integrator enterprise network customized deployment
  • EML laser integrated low-loss LAN-WDM 100G LR4 QSFP28 Transceiver for multi-vendor cross-data-center DCI interconnection
  • Internal chip close-up of DDM-enabled 100G LR4 QSFP28 Transceiver supporting full real-time optical power & temperature monitoring

HUAWEI QSFP-100G-LR4 Compatible 100G LR4 QSFP28 Transceiver 10km Bulk Wholesale | HYTOPTODEVICE

Buy bulk 100G LR4 QSFP28 Transceiver fully compatible with HUAWEI QSFP-100G-LR4. 1295–1309nm LAN-WDM single-mode duplex LC, full DDM/DOM diagnostic monitoring, custom vendor firmware for Huawei CloudEngine & S-series VRP switches, stable 10km SMF transmission. Support small sample testing, OEM private labeling, bulk wholesale for global import distributors and enterprise end users.
NO. Brand  Compatible P/N Remarks
1 Cisco  QSFP-100G-LR4-S 
2 Arista Networks  QSFP-100G-LR4
3 Brocade  100G-QSFP28-LR4-LP-10KM
4 Dell  Q28-100G-LR4
5 H3C  QSFP-100G-LR4-WDM1300
6 HPE Aruba  JL310A
7 Huawei  QSFP-100G-LR4 
8 Juniper Networks  QSFP-100G-LR4-D
9 NVIDIA(Mellanox)  MMA1L10-CR
Description
HYTOPTODEVICE HUAWEI QSFP-100G-LR4 Compatible 100G LR4 QSFP28 Transceiver – 1300nm LAN-WDM Single-Mode Duplex LC Optic, Drop-In Hardware Replacement & Bulk Wholesale Available

Product Overview

 HYTOPTODEVICE 100G LR4 QSFP28 Transceiver is an IEEE 802.3ba and QSFP28 MSA standardized single-mode optical module, engineered to match original HUAWEI QSFP-100G-LR4 hardware specs. It outputs total bandwidth of 103.125Gbps via four independent 25.78Gbps NRZ optical lanes within standard LAN-WDM wavelength grid, adopting long-distance EML laser chip and duplex LC flat contact connector. It maintains stable low-bit-error 10km signal transmission on standard single-mode fiber, equipped with independent CDR clock recovery chip and full real-time DDM optical power/temperature monitoring function. Optimized for Huawei CloudEngine leaf-spine fabric interconnection, cross-data-center DCI long-haul links and enterprise core backbone 100G bandwidth upgrade. All bulk batches of 100G LR4 QSFP28 Transceiver support custom EEPROM rewriting to remove vendor lock-in warning prompts in mixed-brand network environments, fully matching Huawei QSFP-100G-LR4 electrical & optical factory calibration parameters.

Key Technical Specifications

Our high-performance 100G LR4 QSFP28 Transceiver is strictly manufactured, optically calibrated and fully tested in accordance with Huawei QSFP-100G-LR4 specifications, QSFP28 MSA and IEEE 802.3ba industry standards. Each module undergoes rigorous optical, electrical and protocol compatibility verification to deliver stable, low-BER and reliable 40km long-reach transmission for Huawei cloud data center networks. All precise technical parameter values are detailed in the below specification table for professional deployment reference.
Huawei Compatible  QSFP-100G-LR4 Vendor Name HYTOPTODEVICE
Form Factor QSFP28 Max Data Rate 103.125Gbps (4x 25.78Gbps)
Wavelength 1295.56nm,1300.05nm,
1304.58nm,1309.14nm
Max Distance 10km
Connector Duplex LC Transmitter Type 4 x LAN WDM EML
Cable Type SMF Receiver Type PIN
Modulation (Electrical) 4x 25G-NRZ TX Power -4.3~+4.5dBm
Power Consumption < 3.5W Receiver Sensitivity < -10.6dBm
Protocols 100G Ethernet, MSA Compliant Operation Temperature 0 to 70°C (32 to 158°F)

Full Compatibility List & Supported Network Hardware

1.Native Huawei Compatibility

All 100G LR4 QSFP28 Transceiver pass long-term traffic aging testing on official Huawei VRP hardware platforms, realizing seamless hardware replacement without port identification failure. All DDM/DOM monitoring data can be normally displayed on Huawei switch web & CLI management pages. Complete test logs and hardware verification videos can be provided for project acceptance inspection.
Compatible HUAWEI Hardware Series:
  • CloudEngine Data Center Switches: CE12800, CE8800, CE7800, CE6800, CE16800 Series
  • Enterprise S-Series Switches: S12700, S7700, S6720, S6730-H, S5732-H V2
  • NetEngine Core Routers: NE8000, NE40E, NE20E Series
  • Huawei QSFP28 expansion uplink ports matching OEM PN 02311KNU / 02315HNW

2.Multi-Brand Cross Compatibility

Built strictly to industry MSA standards, HYTOPTODEVICE’s QSFP-100G-LR4 breaks vendor lock-ins, delivering seamless interoperability across diverse network environments.

  • Open-Brand Devices (Plug-and-Play): 100% natively compatible with open-architecture brands like Ciena, Fortinet, Ubiquiti, MikroTik, D-Link, Zyxel, and more.

  • Locked-Brand Devices (Advanced Coding): Powered by our proprietary EEPROM writing technology, our modules successfully bypass vendor encryptions to ensure 100% compatibility with Cisco, H3C, Juniper, Dell, Intel, and the latest updated Arista firmware versions.

3.Free Custom EEPROM Re-Flash Service
To future-proof your investment, we offer a free firmware re-flash service. If you upgrade your switch OS or migrate the module to a different brand in the future, we will re-code it to guarantee a 100% stable link.


Primary Application Scenarios

This high-stability single-mode 100G LR4 QSFP28 Transceiver targets 10km long-distance transmission scenarios, supporting Huawei leaf-spine fabric construction, cross-building DCI interconnection and enterprise trunk network upgrade with consistent low-BER optical transmission performance.
  • 100G LR4 QSFP28 Transceiver bulk replacement for aging HUAWEI QSFP-100G-LR4 modules during CloudEngine fabric bandwidth expansion
  • Cross-data-center DCI interconnection using 100G LR4 QSFP28 Transceiver to build low-loss 10km long-haul single-mode fiber links
  • Enterprise core backbone network construction deploying 100G LR4 QSFP28 Transceiver for stable inter-machine-room trunk transmission
  • Large campus network iteration with low-jitter LAN-WDM 100G LR4 QSFP28 Transceiver for remote server room 100G uplink access
  • System integrator custom coded 100G LR4 QSFP28 Transceiver for multi-brand long-distance Huawei data center integration projects
  • ISP edge MAN rack networking adopting standard-compliant 100G LR4 QSFP28 Transceiver for 100G wide-area bandwidth expansion

Connectivity Solutions(Applications)

1. 100G Switch-to-Switch Interconnection

Deploy paired 100G LR4 QSFP28 Transceiver with G.652 single-mode fiber to build reliable 10km switch-to-switch trunk links for Huawei CloudEngine leaf-spine fabric traffic aggregation.

100G LR4 QSFP28 Transceiver single-mode wiring layout for Huawei CloudEngine leaf spine fabric switch-to-switch backbone interconnection

2.100G Switch-to-NIC Direct Connection

Adopt Huawei CloudEngine compatible 100G LR4 QSFP28 optics for direct switch-server NIC connection, breaking short-range multimode limits to realize stable remote high-speed server uplink access for Huawei storage clusters.

 Low-BER LAN-WDM 100G LR4 QSFP28 Transceiver long-distance topology for remote storage server NIC high-speed uplink transmission

3.100G Long-haul Switch Link with
Structured Cabling

Match standardized 100G LR4 QSFP28 Transceiver to single-mode structured cabling systems to build scalable hierarchical long-distance network layout for large Huawei enterprise campus deployments.
Factory-calibrated 100G LR4 QSFP28 Transceiver optical link design for enterprise structured single-mode cabling Huawei VRP switch networking


Feature | 100G Connectivity for Data Center

HYTOPTODEVICE HPE Aruba compatible 100G LR4 QSFP28 transceiver delivers ultra-stable 100Gbps transmission with industry-leading low power consumption. Engineered for maximum reliability in high-density data center environments.



FAQ

Q1: Can pre-coded 100G LR4 QSFP28 Transceiver achieve plug-and-play operation on Cisco, Arista and Juniper enterprise switches?
A: Ordinary third-party modules trigger unsupported transceiver CLI blocks, while all HYTOPTODEVICE 100G LR4 QSFP28 Transceiver support customized vendor-specific EEPROM coding, perfectly bypassing major brand switch restrictions for seamless cross-platform compatibility.

Q2: How to reconfigure vendor parameters of universal 100G LR4 QSFP28 Transceiver for new switch brand replacement in on-site network upgrades?
A: Our 100G LR4 QSFP28 Transceiver supports field re-programming adaptation for different switch vendors. Users only need professional coding equipment such as Flexbox tools provided by HYTOPTODEVICE to complete on-site EEPROM re-coding quickly.

Q3: What is the standard optical link budget range of factory-calibrated 100G LR4 QSFP28 Transceiver for 10km single-mode links?
A: Equipped with high-precision imported optical components, HYTOPTODEVICE 100G LR4 QSFP28 Transceiver features a standard optical power budget of 6.3dB to 8.5dB, ensuring sufficient margin for stable 10km long-distance transmission links.

Q4: How do cumulative patch panel loss and long-term fiber aging reduce the effective transmission mileage of industrial 100G LR4 QSFP28 Transceiver?
A: Each patch panel produces 0.5dB–0.75dB insertion loss, which continuously consumes the module’s optical power budget. HYTOPTODEVICE 100G LR4 QSFP28 Transceiver reserves extra power margin to offset fiber aging and wiring loss and avoid shortened transmission distance.

Q5: Why do long-haul EML-based 100G LR4 QSFP28 Transceiver run hotter than short-range SR4 and CWDM4 optical modules?
A: Different from low-power short-reach modules, HYTOPTODEVICE 100G LR4 QSFP28 Transceiver adopts professional EML lasers and built-in MUX/DEMUX components. High-power driving design supports stable 10km long-haul transmission, resulting in slightly higher normal operating temperature than short-distance optics.

Q6: What causes intermittent optical link flapping of ordinary 100G LR4 QSFP28 Transceiver under full traffic load operation?
A: Most generic modules suffer link flapping from thermal-induced optical offset or switch port voltage fluctuation under heavy load. HYTOPTODEVICE 100G LR4 QSFP28 Transceiver adopts reinforced optical alignment and anti-jitter power design to eliminate load-based intermittent link failures.

Q7: What laser chip configuration guarantees long-distance signal integrity of commercial-grade 100G LR4 QSFP28 Transceiver?
A: To meet 10km long-haul transmission standards, all HYTOPTODEVICE 100G LR4 QSFP28 Transceiver are equipped with high-performance EML electro-absorption modulated lasers. We abandon low-cost DML lasers to ensure ultra-stable long-distance signal transmission and low bit error rate.

Q8: How do premium 100G LR4 QSFP28 Transceiver avoid EEPROM checksum error reports from mainstream switches?
A: Generic modules often have EEPROM data corruption during writing or electrical spike damage. HYTOPTODEVICE 100G LR4 QSFP28 Transceiver adopts secondary verification factory writing process and anti-static protection design, completely avoiding switch-reported EEPROM checksum errors.

Q9: Why do high-stability 100G LR4 QSFP28 Transceiver resist link flapping under chassis vibration and high airflow scenarios?
A: Inferior modules have flawed latching structures and dimensional tolerances causing loose contact. HYTOPTODEVICE 100G LR4 QSFP28 Transceiver adopts precision-machined casing and reinforced locking mechanism, firmly fixed in switch ports to prevent vibration and airflow-induced link disconnection and flapping.

Q10: Is it feasible to extend transmission distance of standard 100G LR4 QSFP28 Transceiver to 20-30km via optical line amplifiers?
A: It is not applicable. LAN-WDM chromatic dispersion will severely distort signals beyond 10km, and optical amplification cannot fix signal distortion. HYTOPTODEVICE recommends matching ER4/ZR4 modules for 20km–30km long-haul scenarios to ensure error-free transmission.

Brand & Service Advantage 

As a global professional optical transceiver supplier, HYTOPTODEVICE focuses on mass supply and customized development of high-compatibility 100G LR4 QSFP28 Transceiver matching HUAWEI QSFP-100G-LR4 original OEM hardware (PN:02311KNU / 02315HNW). Every production batch undergoes strict optical parameter calibration, long-hour thermal aging testing and cross-brand real-machine interoperability verification on Huawei CloudEngine & S-series VRP switch platforms. We provide sample, OEM private label packaging, fast worldwide logistics and 5-year factory warranty, helping overseas system integrators and data center operators cut procurement costs by over 70% compared to Huawei OEM original modules while maintaining stable 10km long-distance 100G single-mode network transmission 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.

  • 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.




Rigorous Industrial Product Testing

   hytoptodevice check device and equiptment for network optical transceiver module

100% 3rd Party Compatible
hytoptodevice 100g qsfp28 lr4 module for replacement
Partial Test Demonstration
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Others
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  • HUAWEI QSFP-100G-LR4 Compatible 100G LR4 QSFP28 Transceiver 10km Bulk Wholesale | HYTOPTODEVICE
  • Front LC port view of 100G LR4 QSFP28 Transceiver 1300nm single-mode optic for HUAWEI QSFP-100G-LR4 OEM hardware replacement
  • Side profile MSA-certified 100G LR4 QSFP28 Transceiver for large-scale Huawei CloudEngine data center bulk upgrade projects
  • Rewritable Huawei VRP-compatible EEPROM 100G LR4 QSFP28 Transceiver for system integrator enterprise network customized deployment
  • EML laser integrated low-loss LAN-WDM 100G LR4 QSFP28 Transceiver for multi-vendor cross-data-center DCI interconnection
  • Internal chip close-up of DDM-enabled 100G LR4 QSFP28 Transceiver supporting full real-time optical power & temperature monitoring

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