• Cisco QSFP-100G-PSM4-S Compatible 100G QSFP28 Transceiver | PSM4 1310nm 500m MPO SMF Bulk & Wholesale | HYTOPTODEVICE
  • Cisco QSFP-100G-PSM4-S Compatible 100G QSFP28 Transceiver | PSM4 1310nm 500m MPO SMF Bulk & Wholesale | HYTOPTODEVICE
  • Cisco QSFP-100G-PSM4-S Compatible 100G QSFP28 Transceiver | PSM4 1310nm 500m MPO SMF Bulk & Wholesale | HYTOPTODEVICE
  • Cisco QSFP-100G-PSM4-S Compatible 100G QSFP28 Transceiver | PSM4 1310nm 500m MPO SMF Bulk & Wholesale | HYTOPTODEVICE
  • Cisco QSFP-100G-PSM4-S Compatible 100G QSFP28 Transceiver | PSM4 1310nm 500m MPO SMF Bulk & Wholesale | HYTOPTODEVICE
  • Cisco QSFP-100G-PSM4-S Compatible 100G QSFP28 Transceiver | PSM4 1310nm 500m MPO SMF Bulk & Wholesale | HYTOPTODEVICE

Cisco QSFP-100G-PSM4-S Compatible 100G QSFP28 Transceiver | PSM4 1310nm 500m MPO SMF Bulk & Wholesale | HYTOPTODEVICE

HYTOPTODEVICE Dell 100G-QSFP28-LR compatible QSFP28 transceiver delivers 100GBASE-LR1 single lambda PAM4 connectivity with built-in KP4 FEC, supporting up to 10km over OS2 single-mode fiber. Custom EEPROM enables seamless recognition on Dell PowerSwitch series, ideal for data center leaf-spine interlinks, campus backbone and 400G PLR4 optical breakout upgrades.Bulk wholesale, private label and custom EEPROM coding available for global importers, distributors and integrators.
NO.Brand Compatible P/NRemarks
1Cisco QSFP-100G-PSM4-S
2Arista NetworksQSFP-100G-PSM4
3Dell Q28-100G-PSM4-IR
4Huawei QSFP28-100G-PSM4
5HPE JH420A
6Juniper JNP-QSFP-100G-PSM4
7EdgeCore ET7402-PIR4
Description
Dell 100G-QSFP28-LR Compatible 100G QSFP28 Transceiver Module Single Lambda | LR 1310nm  10km SMF Duplex LC | HYTOPTODEVICE

Product Overview

This 100G QSFP28 transceiver serves as a cost-effective drop-in replacement for Dell 100G-QSFP28-LR, engineered to minimize unrecognized module alerts and unstable links across Dell PowerSwitch data center and enterprise switching hardware.

Built around single-lambda 1310nm PAM4 modulation and integrated KP4 forward error correction, this QSFP28 transceiver sustains reliable 100G Ethernet traffic up to 10km over OS2 single-mode fiber. Its onboard DSP converts four independent 25G electrical lanes into a single 100G optical channel, preserving signal integrity across multi-floor campus trunks and inter-building long-distance connections.

The module complies with IEEE 802.3cd, QSFP28 MSA and 100G Lambda MSA standards, with native DDM/DOM real-time optical monitoring capability. Tailored EEPROM profiles support hot insertion on Dell equipment and reduce persistent system warning logs. It fits leaf-spine fabric interconnections, long-range aggregation uplinks and incremental bandwidth expansion using standard 400G PLR4 optical breakout.


Key Technical Specifications

 Dell Compatible   100G-QSFP28-LRVendor NameHYTOPTODEVICE
Form FactorQSFP28Max Data Rate100Gbps Single Lambda
Wavelength1310nm

Max Distance10km
ConnectorDuplex LC/UPCTransmitter TypeEML
Cable TypeSMFReceiver TypePIN
FEC SupportYesTX Power-1.4~+4.5dBm
Power Consumption<4.5WReceiver Sensitivity< -4.5dBm
ProtocolsQSFP28 MSA, SFF-8636,IEEE 802.3cu,CAUI-4Operation Temperature0 to 70°C (32 to 158°F)


Usage Guidelines & Best Practices

  • Fiber Requirement: Only OS2 single-mode fiber; OM3/OM4 multimode fiber cannot support 1310nm PAM4 transmission and will cause link failure.
  • FEC Configuration: Enable KP4 FEC on Dell switch ports to maximize 10km link margin and sustain low BER stability.
  • Installation Specification: Hot-plug supported; keep LC end faces clean and maintain proper bend radius to avoid extra attenuation.
  • Distance Limit: Rated for 10km OS2 SMF; excessive splices, contaminated connectors or tight bends reduce effective transmission distance.
  • Operating Environment: Commercial temperature 0°C–70°C; keep ports dry and dust-free to extend QSFP28 transceiver service life.

Full Compatibility List & Supported Network Hardware

1. Supported Hardware & Firmware
HYTOPTODEVICE Dell 100G-QSFP28-LR compatible QSFP28 transceiver matches original mechanical dimensions and optical parameters. Customized EEPROM programming enables plug-and-play deployment on Dell PowerSwitch series. Every unit undergoes full interoperability testing to suppress unknown transceiver alarms, port flapping and intermittent session drops.

Validated Dell Platforms:
  • Dell PowerSwitch leaf and spine data center switches
  • Dell enterprise core and aggregation switches
  • Rack servers fitted with QSFP28 100G NIC adapters
  • All hardware with standard QSFP28 ports supporting 100GBASE-LR1 single lambda

2. Multi-Brand Cross Compatibility

Built on universal QSFP28 MSA standards, these 100G-QSFP28-LR replacement transceivers support multi-vendor interoperation. They can interconnect with Cisco, Arista, Dell, Juniper, H3C and NVIDIA/Mellanox equipment, simplifying mixed-vendor campus networks and long-distance inter-data-center links.

3. Free Value-Added Services

HYTOPTODEVICE provides customized EEPROM programming for Dell hardware, private labeling and pre-shipment performance testing. All QSFP28 transceivers pass optical calibration, thermal cycling and 72-hour continuous transmission testing before delivery. Volume orders reduce overall CAPEX for Brocade-based data center builds and campus network expansions.

Primary Application Scenarios

  • Leaf-spine fabric inter-switch links inside Dell enterprise data centers
  • Long-distance 100G Ethernet trunking across multi-building corporate campuses
  • 400G PLR4 to 4×100G optical breakout for gradual bandwidth modernization
  • 100G uplinks between ToR switches and HPC, virtualization and GPU server clusters
  • Enterprise core network extension over 10km single-mode fiber
  • Multi-vendor hybrid infrastructure long-range interconnection
Connectivity Solutions(Applications)

1. 100G to 100G for Switch-Switch Interconnection
This Dell-compatible QSFP28 transceiver extends backbone coverage without full cable replacement. It leverages existing OS2 single-mode fiber to build resilient 100G Ethernet trunks between core and aggregation switches for distributed campus environments.

HYTOPTODEVICE 100G switch-switch interconnection 10km LR QSFP28 transceiver for core trunks

2.100G to 100G for Switch-NIC Connection

Its 10km transmission capacity delivers flexible long-distance uplinks between Dell-compatible ToR switches and server adapters. Compact duplex LC connectors fit densely populated racks, supporting HPC and AI workloads while reserving upgrade paths for future higher-speed generations.

HYTOPTODEVICE 100G switch-NIC uplink QSFP28 transceiver for server cluster connections

3.100G to 400G Smooth Network Migration

This module works alongside 400G PLR4 ports to deliver valid optical 400G-to-4×100G breakout. Only PLR4 supplies four parallel 1310nm lanes over MPO-12 fiber to match 100GBASE-LR1 signaling. 400G FR4 and LR4 cannot support this optical split because they adopt CWDM multiplexing over duplex LC without independent parallel channels. Operators can deploy new 400G spine hardware while retaining existing 100G leaf ports and cabling.

HYTOPTODEVICE 400G PLR4 to 100G breakout migration LR1 QSFP28 transceiver for data center upgrade


The Core Feature 

1.Phased upgrade without full infrastructure replacement

Single-lambda PAM4 architecture and standard KP4 FEC support validated 400G PLR4 breakout migration. Operators scale bandwidth step-by-step while preserving Dell switching hardware and fiber infrastructure, improving asset utilization and lowering total ownership cost.

HYTOPTODEVICE 100G LR1 QSFP28 transceiver supports phased Huawei network upgrade without full infrastructure replacement



2.
Verified Host Interoperability

Custom EEPROM profiles tailored for Dell switching ecosystems; all HYTOPTODEVICE QSFP28 transceivers complete cross-generation hardware verification. Plug-and-play deployment reduces alarm logs, port lockdown risks and layer-two instability on Dell infrastructure.

HYTOPTODEVICE compatible QSFP28 LR transceiver validated on switching and NIC hardware

3.Comprehensive Factory Testing & Reliable Performance

Every QSFP28 transceiver receives optical calibration, temperature cycling and 72-hour burn-in before shipment. Moderate power draw eases thermal pressure inside densely packed switches, reducing cooling overhead and sustaining ultra-low BER for production environments.

HYTOPTODEVICE 100G LR QSFP28 transceiver comprehensive factory testing stable performance for  networks



FAQ

Q1: Does 100G LR1 QSFP28 transceiver support automatic speed fallback to 40G links?

A: HYTOPTODEVICE 100G LR1 QSFP28 transceiver runs on native 100GBASE-LR1 protocol and cannot automatically drop to 40G. Its 4×25G PAM4 electrical interface cannot align with standard 40G optical signaling. If your network requires 40G interconnection, select dedicated 40G optical modules instead of this QSFP28 transceiver.

Q2: What performance gaps exist between 100G LR1, FR1 and DR QSFP28 single lambda transceivers?

A: These QSFP28 transceiver variants target different distance scenarios. DR QSFP28 transceiver serves short rack interconnections up to 500m; FR1 covers building-level distribution at 2km; LR1 QSFP28 transceiver supports campus and inter-building links up to 10km. Though built on 1310nm single lambda design, they differ in optical budget and dispersion resistance, stable cross-model interconnection is not guaranteed.

Q3: Will compatible 100G LR1 QSFP28 transceiver trigger unsupported module alerts on mainstream data center switches?

A: Alarm probability depends on switch firmware and access control policies. HYTOPTODEVICE writes customized EEPROM data matching Dell OEM identifiers to minimize warning logs. Even so, strict authentication modes may still restrict third-party QSFP28 transceiver. We supply full testing reports and adjustable coding to lower on-site deployment risks.

Q4: Can older QSFP28-based switches correctly identify 100G LR1 QSFP28 transceiver?

A: Legacy QSFP28 switches can physically accept the module, yet protocol compatibility relies heavily on firmware releases. Outdated OS may fail to recognize 100GBASE-LR1 or read DDM data abnormally. Confirm exact switch model and firmware before bulk deployment; upgrading firmware often solves QSFP28 transceiver identification and FEC setup issues.

Q5: Is it feasible to run 100G LR1 QSFP28 transceiver over fiber routes longer than 10km?

A: The 10km rating defines the standardized guaranteed operating boundary for this QSFP28 transceiver. Operating at 12km or further exceeds designed optical budget and dispersion tolerance. You may face rising bit errors, unstable optical monitoring data and random link outages. Longer transmission needs amplified optical links or longer-reach transceivers.

Q6: How much chromatic dispersion can 100G LR1 QSFP28 transceiver withstand in practical deployment?

A: 100GBASE-LR1 operates inside a limited dispersion window centered at 1310nm. Actual tolerance varies by DSP and laser design, generally near ±220 ps/nm for 10km-grade QSFP28 transceiver. Excessive dispersion distorts signal waveform and weakens transmission stability. Always calculate dispersion during fiber path planning.

Q7: How does power consumption of 100G LR1 QSFP28 transceiver compare to traditional 100G LR4 modules?

A: 100G LR1 QSFP28 transceiver generally consumes less power than 100G LR4. LR4 requires four independent laser channels plus complex multiplexing components, while LR1 adopts single-laser simplified optical layout. HYTOPTODEVICE LR1 QSFP28 transceiver stays under 4.5W, easing thermal pressure inside dense leaf-spine racks.

Q8: Can standard commercial 100G LR1 QSFP28 transceiver work in extreme outdoor industrial temperature ranges?

A: Standard commercial QSFP28 transceiver supports 0°C to 70°C. Industrial temperature versions are available upon request with reinforced components and strict thermal screening. Do not deploy commercial-grade QSFP28 transceiver in unconditioned outdoor cabinets without confirming industrial specifications.

Q9: Why is 100G LR1 QSFP28 transceiver more cost-efficient than legacy 100G LR4 optics?

A: LR1 QSFP28 transceiver removes three laser assemblies and extra multiplexing hardware, simplifying internal structure. Lower component cost reduces unit price and spare inventory pressure. For campus links within 10km, LR1 QSFP28 transceiver delivers equivalent reach over duplex LC fiber with lower total operation cost.

Q10: Can users plug 100G LR1 QSFP28 transceiver directly into conventional WDM multiplexing systems?

A: Direct insertion into WDM channels is not recommended. This QSFP28 transceiver outputs broadband 1310nm light instead of precise DWDM grid wavelengths. Direct installation leads to crosstalk and poor filtering performance. For WDM transport, select dedicated DWDM transceivers or pair LR1 QSFP28 transceiver with matching 1310-band passive multiplexers.


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 optical transceiver module

100% 3rd Party Compatible
hytoptodevice 100g qsfp28 sr4 replacement
Partial Test Demonstration
hytoptodevice compatible optical transceiver module for ethernet,data center

Others
HYTOPTODEVICE 100G QSFP28 TRANSCEIVER sr4 application for data center,ethernet


 



 

 


 



  • Cisco QSFP-100G-PSM4-S Compatible 100G QSFP28 Transceiver | PSM4 1310nm 500m MPO SMF Bulk & Wholesale | HYTOPTODEVICE
  • Cisco QSFP-100G-PSM4-S Compatible 100G QSFP28 Transceiver | PSM4 1310nm 500m MPO SMF Bulk & Wholesale | HYTOPTODEVICE
  • Cisco QSFP-100G-PSM4-S Compatible 100G QSFP28 Transceiver | PSM4 1310nm 500m MPO SMF Bulk & Wholesale | HYTOPTODEVICE

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