100G QSFP28 LR4


  • The ColorChip C100Q100LR402E
  • QSFP28 LR4 is a 4x25G single-mode fiber, hot pluggable optical transceiver. ColorChip’s unique SystemOnGlassTM (SOGTM) technology enables the integration of 4 transmitters, 4 receivers and an optical MUX/ DeMUX into a small form factor package that delivers up to 112 Gbps data link in a compact QSFP28 footprint.
  • The optical connectivity is based on two Single mode Fiber (SMF) LC connectors, one for Tx and one for Rx.  The Tx and Rx each consist of 4 25Gbps LAN-WDM channels, whose wavelengths are in the 1300nm range. The QSFP28 LR4 transceiver is designed for applications with a reach up to 10Km.

Key Features

  • Compliant with the QSFP28 MSA Technical Specifications.
  • Supports operation for a data rate of 103.1Gbps.
  • Maximum link length of 10km on Single Mode Fiber (SMF).
  • Optical specifications are compliant with IEEE802.3ba 100GBASE-LR4.
  • Low speed electrical signal is compliant with SFF-8679.
  • High speed electrical signal is compliant with 802.3bm CAUI-4.
  • Digital diagnostic functions are available via the I2C interface, as specified by SFF-8636.
  • 4x25Gbps DFB-based LAN-WDM transmitter with central wavelengths of 4 channels 1295.56, 1300.05, 1304.58 and 1309.14 nm.
  • Supports operation for a case temperature of 0°C to +70 °C.
  • Duplex LC receptacles.
  • Power Dissipation < 3.5W.
  • Single 3.3V Power Supply.
  • ROHS Compliant.


  • 100GBASE-LR4 Ethernet links

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