100GBASE-LR4 QSFP28 1310nm 10km Optical Transceiver Module

The 100GBASE-LR4 QSFP28 Optical Transceiver is designed for 10km transmission over single-mode fiber (SMF) using 1310nm wavelength and LC duplex connectors. Fully compliant with IEEE 802.3ba 100GBASE-LR4 standards, this module provides high-performance, low-latency 100G Ethernet connectivity for data centers, enterprise backbones, and metro access networks.

Whether you’re upgrading your infrastructure or deploying new high-speed links, this QSFP28 100G LR4 1310nm transceiver offers consistent reliability and interoperability with major OEM platforms. 

Technical Specifications

Part NumberGL1H-Q2SM31LR4CTx Power
(dBm)
-3~4.5
Product100G QSFP28 LR4Rx Power
(dBm)
≤-10.6
Max Data Rate103GbpsDistance10km
Wavelength1310nmConnectorDuplex LC/UPC
Laser Type
(TX/RX)
EML/PINTemp0~70 ℃
  • Data Center Interconnect (DCI) for high-capacity, long-distance links

  • Enterprise core network upgrades from 40G to 100G

  • Metro Ethernet and telecom access layer

  • Cloud computing infrastructure demanding reliable 100G performance

  • Long-haul aggregation over single-mode fiber

  • Fully compliant with 100GBASE-LR4 IEEE 802.3ba

  • 1310nm CWDM wavelength for stable long-range transmission

  • Ideal for 10km SMF links in modern networks

  • Low power consumption < 3.5W

  • Interoperable with Cisco, Juniper, Arista, and more

  • Built-in digital diagnostics (DDM)

FAQ About 100G QSFP28 LR4 Optical Transceiver

What is a 100GBASE-LR4 QSFP28 transceiver?

It is a high-speed 100Gbps optical module compliant with IEEE 802.3ba, using 4 CWDM channels over 1310nm wavelength for 10km SMF transmission.

Can this 100G LR4 module be used in a data center environment?

Yes, the QSFP28 100G LR4 optical module is ideal for long-range ToR, spine-leaf, and DCI links in modern data center architectures.

Is this module compatible with Cisco 100G switches?

Absolutely. Our transceivers are Cisco compatible 100GBASE-LR4 QSFP28 modules, tested for seamless integration.

What is the fiber and connector type required?

This module uses LC duplex connectors and requires single-mode fiber (SMF) for optimal performance over 10km.

Can I buy this 100GBASE-LR4 module online?

Yes, you can buy 100GBASE-LR4 QSFP28 transceivers online from Fibrecross with full warranty, datasheets, and global shipping.

Do you test all your goods before delivery?

Yes,we have professional engineers to test all devices before shipping.Our product inspection also conforms to FCC/CE/RoHS

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