TAY03256 TAY03257-labeled

100G QSFP28 SR4

The 100G QSFP28 SR4 is a 4x25Gb/s, Pluggable Optical Transceiver Module for short-range data communication and interconnect applications. The module has four channels in each direction with 112Gb/s aggregate bandwidth. Each channel operates up to 25Gb/s, and up to 100m using OM3 fiber or 300m using OM4 fiber. The electrical interface uses a 38-contact edge type connector, compliant with SFF-8636. The optical interface uses a 12-fiber MPO connector.


  • Compliant with IEEE 802.3bm 100GBASE-SR4 and CAUI-4
  • Bi-directional operation: 4x Tx and 4x Rx at 25.78125Gb/s
  • Wide CDR locking range from 24G to 28G for various applications
  • Backward compatible with 10G and 40G applications
  • Enabled by 850nm VCSEL
  • 12-fiber MPO optical connector
  • Operating case temperature 0°C – 70°C
  • Per-channel power consumption <500mW (including Tx, Rx, and CDR)
  • Transmission distance up to 100m with OM3 fiber and 300m with OM4 fiber
  • Laser Eye Safety Class 1
  • DDMI function on Rx power, bias, temp, VCC, and Tx power (option)


  • InfiniBand EDR interconnects
  • 100Gb Ethernet interconnects
  • Datacom and telecom switch connectivity 
  • Router backplane connections
  • High performance computing
  • Data Rate: 100G (4x25Gb/s)
  • Supply voltage: 3.3V
  • Power consumption: 1.8W
  • Temp: 0°C to 70°C
  • Reach: 100m OM3 fiber