QSFP28 Loopback

QSFP+ Loopback

The Electrical Loopbacks from EOPTOLINK intend to support Datacom, Infiniband, Fiber Channel applications, which provide a method for port operations testing in board and system. They are hot swappable, constructed of metal cast for excellent EMI performance.

EOPTOLINK’s QSFP28 Electrical Loopbacks are compliant with the QSFP+ Multi-Source Agreement (MSA) Specification SFF8436 and SFF8661. They comply with parallel applications for 4 x (100M~27.95G) Specification. Digital diagnostics functions are available via a 2-wire serial interface, as specified in the QSFP+ MSA.


  • Supports 4 x 27.95Gb/s rates
  • Compliant with QSFP+ MSA SFF8436, SFF8661
  • Dual LED indicator to display module status
  • Built-in digital diagnostic functions
  • Operation case temperature range -40C to +85C
  • 1.5W~5W & customized power consumption
  • Automatically shut down & self-protection

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  • Eoptolink Technology Inc.,Ltd, No.127 West Wulian Street, Gongxing Town, Shuangliu County, Chengdu 610213, CHINA.
  • +86 028-67087999
  • +86 028-67087979
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