Product Description

The Cisco Qsfp28 100gbase-er4-40 Compatible 100G QSFP28 Optical Transceiver Module is designed for use in 100GBASE Ethernet throughput up to 40km over single mode fiber (SMF) using a wavelength of 1310nm via duplex LC connector. It provides high-density and low-power 100GBASE Ethernet solution for data centers, high-performance computing networks,enterprise core and distribution layer applications. It is fully compliant with the QSFP28 MSA and IEEE 802.3ba 100GBASE-ER4 Lite standard.

100G QSFP28 Key Features:

  • High-Speed Data Transmission: Supports data rates up to 103.125Gbps (4x 25.78Gbps), facilitating rapid data transfer in high-bandwidth networks.
  • Long-Distance Connectivity: Offers reliable performance up to 100m over OM4 MMF, catering to various networking needs.
  • Digital Diagnostics (DDM/DOM): Provides real-time monitoring of operating parameters via the I2C interface, ensuring efficient network management.
  • Industrial Temperature Range: Operates reliably within a wide temperature range from -40 to 85°C (-40 to 185°F), making it suitable for diverse environments.
  • Compact Form Factor: Utilizes a QSFP28 form factor, ensuring compatibility with QSFP28 ports and allowing for easy installation.
  • Built-in Clock and Data Recovery (CDR): Features integrated TX & RX CDR for enhanced signal integrity and reliability.
  • Comprehensive Protocol Support: Compliant with IEEE 802.3bm, QSFP28 MSA, SFF-8665, SFF-8636, RoHS, CPRI, and eCPRI protocols, ensuring interoperability and compliance with industry standards.

Product Parameters:

  • Transmission data rate: 100g
  • Max Data Rate: 103.1Gbps
  • Operating case temperature: 0 ~ 70℃
  • Power Consumption: 4.5W
  • Application: FTTH FTTB FTTX Network
  • Connector: LC
  • Transmission Distance: 40KM
  • Wavelength: 1296nm, 1300nm, 1305nm, 1310nm

 Product Specification

Cisco Compatible QSFP-100G-ER4L-S
Form Factor QSFP28 Max Data Rate 103.1Gbps
Wavelengths 1296nm, 1300nm, 1305nm, 1310nm Max Cable Distance 25km-40km@SMF*
Connector LC Duplex Media SMF
Transmitter Type 4x EML Receiver Type APD
DDM/DOM Supported Commercial Temperature Range 0 to 70°C (32 to 158°F)
TX Power -2.9~4.5dBm Receiver Sensitivity <-20.9dBm
Power Consumption 4.5W Extinction Ratio 4dB
Modulation Format NRZ CDR TX and RX
Transmit and Dispersion Penalty 2.5dB Powerbudget 18dB
Packaging Technology BOX Packaging FEC Function Supported
Protocols QSFP28 MSA Compliant Application 100GBASE Ethernet, Data Center


Notice: When the long reach transceiver is used in short distance transmission, please matched with appropriate attenuator according to the table.


≤ 15km

≤ 25km





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