• HYTOPTODEVICE  Extreme 100G-LR-QSFP10KM   compatible 100G QSFP28 single lambda 1310nm LR 10km OS2 SMF transceiver
  • HYTOPTODEVICE 100GBASE-LR PAM4 QSFP28 transceiver with KP4 FEC for extreme 10km data center links
  • HYTOPTODEVICE zero alarm plug and play extreme 100G-LR-QSFP10KM replacement 100G LR QSFP28 transceiver
  • HYTOPTODEVICE  Extreme 100G-LR-QSFP10KM   compatible 100G QSFP28 single lambda 1310nm LR 10km OS2 SMF transceiver
  • HYTOPTODEVICE 100GBASE-LR PAM4 QSFP28 transceiver with KP4 FEC for extreme 10km data center links
  • HYTOPTODEVICE zero alarm plug and play extreme 100G-LR-QSFP10KM replacement 100G LR QSFP28 transceiver

Extreme 100G-LR-QSFP10KM Compatible 100G QSFP28 Transceiver Single Lambda | LR 1310nm 10km Bulk & Wholesale | HYTOPTODEVICE

HYTOPTODEVICE Extreme 100G-LR-QSFP10KM compatible 100G QSFP28 transceiver, single-lambda 100GBASE-LR 1310nm PAM4 optic with KP4 FEC, 10km OS2 single-mode fiber transmission. Compliant with IEEE 802.3cd and 100G Lambda MSA, customized EEPROM ensures smooth recognition on Extreme switches and servers, ideal for campus backbone, leaf-spine interconnection and 400G PLR4 breakout migration.Bulk wholesale, private label and custom EEPROM coding available for global importers, distributors and integrators.
NO. Brand  Compatible P/N Remarks
1 Cisco  QSFP-100G-LR-S
2 Arista Networks QSFP-100G-LR
3 Intel  SPTSLP4SLCDF
4 Huawei   QSFP-100G-LR1 
5 Extreme  100G-LR-QSFP10KM 
6 Juniper  QSFP-100G-LR
7 Brocade  100G-QSFP28-LR-10KM
8 Dell  100G-QSFP28-LR
Description
Extreme 100G-LR-QSFP10KM Compatible 100G QSFP28 Transceiver Module Single Lambda | LR 1310nm  10km SMF Duplex LC | HYTOPTODEVICE

Product Overview

This 100G QSFP28 transceiver serves as a field-proven replacement for Extreme 100G-LR-QSFP10KM, engineered to eliminate compatibility alarms and link instability on Extreme enterprise and data center hardware.
It adopts single-lambda PAM4 modulation paired with built-in KP4 FEC, delivering consistent 100G Ethernet traffic up to 10km over OS2 single-mode fiber. The onboard DSP converts four 25G electrical lanes into one unified 100G optical channel, maintaining clean signal performance across cross-floor, campus and inter-building long-haul links.
Designed to satisfy IEEE 802.3cd, QSFP28 MSA and 100G Lambda MSA standards, the module supports DDM/DOM real-time optical monitoring. Tuned EEPROM profiles enable hot-plug operation on Extreme equipment with minimal warning logs. It fits leaf-spine fabrics, long-distance aggregation trunks and phased bandwidth expansion via valid 400G PLR4 optical breakout.


Key Technical Specifications

Extreme Compatible    100G-LR-QSFP10KM  Vendor Name HYTOPTODEVICE
Form Factor QSFP28 Max Data Rate 100Gbps Single Lambda
Wavelength 1310nm
Max Distance 10km
Connector Duplex LC/UPC Transmitter Type EML
Cable Type SMF Receiver Type PIN
FEC Support Yes TX Power -1.4~+4.5dBm
Power Consumption <4.5W Receiver Sensitivity < -4.5dBm
Protocols QSFP28 MSA, SFF-8636,IEEE 802.3cu,CAUI-4 Operation Temperature 0 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 Extreme 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 100G-LR-QSFP10KM compatible QSFP28 transceivers match the original mechanical outline and optical specifications. Purpose-built EEPROM configuration delivers plug-and-play operation on Extreme Summit and VDX series switches. Every unit passes lab interoperability testing to suppress unknown module alarms, port flapping and random session drops.

Validated Extreme Platforms:
  • Extreme Summit series enterprise and data center switches
  • Extreme VDX fabric leaf and spine switching hardware
  • Rack servers with QSFP28 100G NIC ports
  • All equipment with standard QSFP28 ports supporting 100GBASE-LR1 single lambda

2. Multi-Brand Cross Compatibility

Built on universal QSFP28 MSA standards, these 100G-LR-QSFP10KM 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 Extreme-data-center links.

3. Free Value-Added Services

HYTOPTODEVICE provides customized EEPROM programming for Extreme 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 Extreme-based data center builds and campus network expansions.

Primary Application Scenarios
  • Leaf-spine fabric inter-switch connections for Extreme rack-scale data centers
  • Long-haul 100G Ethernet links across multi-building enterprise campuses
  • 400G PLR4 to 4×100G optical breakout for gradual bandwidth expansion
  • 100G uplinks between top-of-rack switches and Huawei GPU, HPC and virtualization servers
  • Enterprise core and aggregation backbone extension over 10km single-mode fiber
  • Multi-vendor hybrid infrastructure long-distance interconnection

Connectivity Solutions(Applications)


1. 100G to 100G for Switch-Switch Interconnection
This Extreme compatible QSFP28 transceiver extends core-to-aggregation trunk reach. It reuses existing OS2 single-mode fiber to deliver reliable 100G long-distance trunking without wholesale cable replacement

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

2.100G to 100G for Switch-NIC Connection

With rated 10km performance, the QSFP28 transceiver builds dependable long-range 100G uplinks between Extreme ToR switches and server NICs. Compact duplex LC cabling supports dense rack layouts, suited for HPC and AI clusters while reserving bandwidth headroom for future 400G upgrades.

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 enable genuine optical 400G-to-4×100G breakout. Only PLR4 supplies four parallel 1310nm lanes over MPO-12 fiber to match 100GBASE-LR signaling. 400G FR4 and LR4 cannot perform this optical split, as they use CWDM multiplexing over duplex LC without independent parallel channels. Data centers can deploy new 400G spine hardware while preserving existing 100G leaf ports and cabling.

HYTOPTODEVICE 400G PLR4 to 100G breakout migration LR 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. Businesses expand bandwidth step-by-step while retaining Extreme switching hardware and fiber infrastructure, maximizing asset utilization and lowering total cost of ownership.

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



2.
Verified Host Interoperability

Custom EEPROM profiles tailored for Extreme switching and NIC ecosystems; all HYTOPTODEVICE QSFP28 transceivers complete cross-generation hardware validation. Plug-and-play deployment reduces alert logs, port lockdown risks and layer-two instability on Extreme infrastructure.
HYTOPTODEVICE compatible QSFP28 LR transceiver validated on switching and NIC hardware

3.Comprehensive Factory Testing & Reliable Performance

Every QSFP28 transceiver undergoes optical calibration, high-low temperature cycling and 72-hour full-rate aging before shipment. Power consumption ≤4.5W reduces switch thermal load and data center PUE, ensuring ultra-low BER and 24/7 reliable commercial operation.

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



FAQ

Q1: How do 100G LR1 single-lambda modules differ architecturally from older 100G LR4 transceivers?
A: HYTOPTODEVICE 100G LR1 consolidates the full 100G payload onto one 1310nm PAM4 channel over duplex LC fiber. LR4 distributes traffic across four discrete wavelengths with multiplexer hardware. The simplified LR1 design cuts cabling complexity and component expense, yet the two formats cannot directly interoperate over fiber due to mismatched lane structures.

Q2: Which formal specifications define the electrical and optical behavior of 100G LR1?
A: Our Extreme-compatible 100G LR1 QSFP28 follows IEEE 802.3cd, QSFP28 MSA and 100G Lambda MSA. These global standards unify mechanical footprint, PAM4 signaling, KP4 FEC operation and DDM diagnostics, ensuring predictable performance across Extreme and other mainstream switching ecosystems.

Q3: What fiber connector interface does the 100G LR1 transceiver adopt?
A: HYTOPTODEVICE 100G LR1 uses duplex LC/UPC connectors. This compact dual-fiber interface suits densely packed racks and supports bidirectional 1310nm single-lambda transmission over standard OS2 single-mode fiber.

Q4: Must both ends of a 100G LR1 link run switches from the same manufacturer?
A: Matching vendor hardware is not required. HYTOPTODEVICE 100G LR1 optics deliver consistent cross-brand interoperability. Reliable connectivity holds as long as both sides use standard LR1 modules and align KP4 FEC settings; mismatched module types or inconsistent FEC modes still cause instability.

Q5: Are optical attenuators required to protect receivers on short 100G LR1 links such as 500m?
A: Attenuators are generally unnecessary for typical 500m OS2 spans and properly calibrated HYTOPTODEVICE LR1 units do not overload receivers by default. Monitor DDM receive power closely; add attenuators only when readings exceed the maximum safe input threshold.

Q6: Why does PAM4 100G LR1 demand cleaner fiber end faces than legacy NRZ 100G links?
A: PAM4 carries more information within the same optical bandwidth and operates with tighter noise margins than older NRZ systems. Even minor contamination or scratches on LC tips create subtle waveform distortion, raising bit error rates and triggering random packet loss. HYTOPTODEVICE recommends routine inspection and cleaning for all PAM4 deployments.

Q7: What power draw should operators expect from a production 100G LR1 QSFP28?
A: HYTOPTODEVICE 100G LR1 modules maintain operating power below 4.5W. Lower steady-state power reduces thermal buildup in fully populated switch shelves, eases cooling load and preserves consistent DDM telemetry during 10km PAM4 transmission with KP4 FEC.

Q8: Can filling all QSFP28 ports with 100G LR1 create thermal risks for high-density switches?
A: Individual modules produce modest heat, but full port occupancy creates localized hotspots. Restricted airflow, blocked vents or tight rack arrangements lift module temperature, shrink optical margin and accelerate laser aging. Plan chassis ventilation carefully for large-scale deployments.

Q9: What factors guide the choice between EML and Silicon Photonics for 100G LR1?
A: Silicon Photonics LR1 modules offer compact packaging, low power and better scaling for dense leaf-spine racks. EML variants provide higher optical budget and more tolerance for lossy fiber plants with many splices. HYTOPTODEVICE supplies both options; select based on rack density, existing fiber quality and link-loss budget.

Q10: What practical field tests quickly validate 100G LR1 module health during maintenance?
A: Verify stable Tx/Rx power and temperature via DDM while running sustained line-rate traffic. Enable KP4 FEC and observe BER over an extended window. HYTOPTODEVICE units pass thermal cycling and burn-in before shipment; field modules with drifting power or rising error rates should be replaced.

Q11: Which 400G transceiver enables genuine optical breakout to four independent 100G LR1 links?
A: Only 400G PLR4 supports optical breakout aligned with 100G LR1 single-lambda signaling, thanks to four parallel 1310nm channels over MPO-12 fiber. 400G FR4 and LR4 use CWDM multiplexing over duplex LC and lack separate parallel lanes, so they cannot be optically split into four discrete LR1 connections.

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

 



 

 

 

  • HYTOPTODEVICE  Extreme 100G-LR-QSFP10KM   compatible 100G QSFP28 single lambda 1310nm LR 10km OS2 SMF transceiver
  • HYTOPTODEVICE 100GBASE-LR PAM4 QSFP28 transceiver with KP4 FEC for extreme 10km data center links
  • HYTOPTODEVICE zero alarm plug and play extreme 100G-LR-QSFP10KM replacement 100G LR QSFP28 transceiver

Interested in? or Meet any problem?

Enter your contact info, our professional consultant will reach out within 24 hours
FirstName *
LastName *
Email *
Company registered country/region *
Tel/WhatsApp *
Details *

Download

{ "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Are HYTOPTODEVICE transceivers compatible with Cisco switches?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. HYTOPTODEVICE optical transceivers are third-party compatible modules tested against Cisco IOS-XE, NX-OS, and IOS-XR firmware. Over 200 SKUs have been validated against Cisco Catalyst, Nexus, and ASR platforms using EEPROM programming that matches Cisco OEM identifiers." } } ] }