• Name: 100GBASE-SR4 100m QSFP28 Optical Transceiver
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The Gigalight 100GBASE-SR4 100m QSFP28 optical transceiver (GQS-MPO101-SR4C) is designed for use in 100-Gigabit Ethernet links up to 100m over Multi-Mode Fiber (MMF). It is compliant with the QSFP28 MSA and IEEE 802.3bm 100GBASE-SR4 and CAUI-4. Digital diagnostics functions are available via the I2C interface, as specified by the QSFP28 MSA. The optical transceiver is RoHS compliant.


  • Hot-pluggable QSFP28 form factor
  • 4 channels full-duplex transceiver module
  • Supports 103.125Gb/s aggregate bit rate
  • 4 channels 850nm VCSEL array
  • 4 channels PIN photo detector array
  • Internal CDR circuits on both receiver and transmitter channels
  • Supports CDR bypass
  • 2.5W maximum power dissipation
  • Maximum link length of 70m on OM3 MMF or 100m on OM4 MMF
  • Single MTP/MPO receptacle
  • Built-in digital diagnostic functions
  • Operating case temperature range: 0 to 70°C
  • Single 3.3V power supply
  • RoHS-6 compliant (lead free)


  • 100GBASE-SR4 100G Ethernet
  • 40GBASE-SR4 40G Ethernet
  • InfiniBand FDR/EDR applications

Ordering Information

Product Description Product Number
QSFP28 SR4, 103.125Gb/s, 850nm, 100m, MMF, MTP/MPO GQS-MPO101-SR4C