Juniper QSFP-100G-ER4L Compatible 100G QSFP28 ER4L Optical Transceiver Module | HYTOPTODEVICE

The Juniper QSFP-100G-ER4L compatible module is a carrier-grade 100Gbps QSFP28 transceiver, designed for high-capacity metropolitan networks and data center interconnects (DCI). Utilizing 1310nm LAN-WDM technology with Duplex LC connector, it achieves a stable 40km reach over Single-Mode Fiber (SMF) when used in conjunction with Host-side FEC. This module is specifically engineered to be a seamless "drop-in" for Juniper-based networks, ensuring full compatibility with Juniper’s high-performance platforms.supporting DDM/DOM.

Our Juniper 100G ER4L compatible module is verified and 100% compatible with Juniper’s high-performance platforms, including:

• MX Series 5G Universal Routing: MX204, MX480, MX960, MX2010/2020.

• QFX Series Switches: QFX5110, QFX5120, QFX5200, QFX10002.

• PTX Series Packet Transport: PTX1000, PTX5000, PTX10001.

• EX Series Switches: EX4650, EX9200.
  
  

• Service Provider Core: High-speed 100G backhaul for Juniper PTX or MX series routers.

• Data Center Interconnect (DCI): Linking Juniper QFX-based leaf-spine fabrics over metro distances.

• Campus Core Aggregation: Connecting core switches across large-scale university or corporate environments where distances exceed 10km.

 Connectivity Solutions(Applications)









Feature

HYTOPTODEVICE Juniper 100G ER4L compatible transceiver delivers ultra-stable 100Gbps transmission with industry-leading low power consumption. Engineered for maximum reliability in high-density data center environments.

FAQ for 100G  QSFP28 ER4L Optical Module

Q1:What is QSFP28 100G ER4L module? A:The 100G ER4L is a hot pluggable optical transceiver module.It is typically built in a QSFP28 form factor, uses a SMF to transmit distance up to 40km  through 1310nm LAN-WDM technology.

Q2:Do I need an attenuator for short-distance links?A:Yes,The 100g er4 transceiver use the high-sensitivity receiver and powerful transmitter. for avoiding damage the receiver,an optical attenuator is required for links less than 20km.

Q3:What fiber and connector does this 100g er4 module use?A:The 100G ER4 module uses duplex LC connector with SMF.

Q4:Does the QSFP-100G-ER4L support real-time monitoring?A:Yes, it supports Digital Optical Monitoring (DOM) for real-time monitoring of optical power,laser bias current,temperature and voltage.

Q5:What does "ER4" stand for in 100G ER4?A: ER4 stands for "Extended Reach with 4-Channel". It uses 4 x LAN WDM (1295、1300、1305、1310nm) technology  to transmit 100G traffic over SMF up to 40km.

Q6:Can I use this module with a single strand of fiber (Simplex)?A: No.The 100G QSFP28 ER4 module requires two strands of single-mode fiber: one for transmitting (TX) and one for receiving (RX). you can not transmit data by a single strand of fiber.

Q7:Q: What are the differences between 100G ER4 vs 10G ER? A: The difference is below:

Q8:Can I use this in an outdoor enclosure?A: NO.the QSFP-100G-ER4L is for Commercial Temperature (C-Temp) rated for 0°C to 70°C. if you want to use it in outdoor enclosure. the Industrial Temperature (I-Temp) 100G ER4 module was recommended.

 Q9:Can 100G QSFP28 ER4L transceiver be linked with 10G SFP+ER?A:NO, you can not connect 100G ER4L with 10G ER. Their speed  is different(100G vs 10G),  different wavelengths (1310nm vs 1550nm), and they operate different modulation techniques.

Q10:Is 100GBASE-ER4L 1310nm module hot pluggable?A:Yes,HYTOPTODEVICE 100g optical modules are hot-pluggable, hot Pluggable QSFP28 MSA Compliant.you can plug or unplug the optical module without damaging the device.

Q11:How do you ensure quality testing for 100g  QSFP ER4L?

A: At HYTOPTODEVICE, we maintain a comprehensive quality management system integrated with rigorous, multi-stage testing. Every optical transceiver module undergoes extensive evaluation to ensure it exceeds industry standards for reliability, high-speed performance, and multi-vendor compatibility. We don't just ship products; we deliver verified network stability.use it with peace of mind.

Why Network Engineers Choose HYTOPTODEVICE

HYTOPTODEVICE has supplied over 500,000 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.

"We replaced 200 Cisco-branded SFPs with HYTOPTODEVICE equivalents across our spine layer — zero compatibility issues, 40% cost reduction."— Network Architect, Tier-2 ISP, Germany

Quality Certification & Compliance：

 At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final inspection, 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：

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