OSFP 400GOSFP 800G Eoptolink is developing OSFP(Octal Small Form Factor Pluggable) a new pluggable form factor with eight high speed electrical lanes that will initially support 400 Gbps (8x50G). It is slightly wider and deeper than the QSFP but it still supports 32 OSFP ports per 1U front panel, enabling 12.8 Tbps per 1U switch lot. OSFP is designed to support the next generation of 800G optics modules that will use eight lanes of 100Gbps, and offers backwards compatibility with 100G QSFP.


  • 400G Optics require more power than 100G Optics and many of them will not fit into the existing QSFP form factor. Depending on the specific 400G optics technology the initial power projections range from 7.5 Watt to 15 Watt.
  • The OSFP has an integrated heat-sink that greatly improves thermal performance and enables modules with up to 15W power in a switch chassis with conventional airflow.
  • Since the OSFP is slightly wider and deeper than the QSFP, it is possible to build an adaptor that supports existing 100G QSFP optics modules in a OSFP cage.
  • OSFP is able to meet the projected thermal requirements for 800 Gbps optics when those systems and optics become available in the future.


  • Eoptolink Technology Inc., Ltd, No.127 West Wulian Street, Shuangliu District, Chengdu City 610213, P.R.China
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