Rapide II™ 800G QSFP-DD LoopBack

  • Industry highest rated mating cycles for 2000 and above
  • Built-in surge current mitigation technology
  • Adjustable power consumption is evenly distributed to the 4 regions, each region is individually programmed between 1.0W through 10.0W with 0.5W stepping
  • Operating temperature: 0℃ to 85℃
  • +3.3V power supply
  • Supports 8*10G/25G/56G PAM4/112G data rates
  • 2-wire interface for integrated Digital Diagnostic Monitoring
  • Signal integrity performance meets IEEE 802.3ba, 802.3bj, 802.3cd, 3ckstandards respectively
  • Enhanced EMC/EMI design for noise harsh environment
  • Enhanced heat dissipation technology for high power testing
  • Custom EEPROM available
  • A multi-color LED indicator for high/low power modes
  • Hot-pluggable
  • RoHS 2.0 compliant
  • Please contact us for a quote.


Designed and engineered to accommodate customers’ high usage 2000 cycles at 0°C to 85°C, the loopback module series are the most reliable products in the market to enable the quickest customers systems production and deployment. Software-defined multiple power consumption may emulate the optical module power, and the embedded insertion loss characteristics emulate the real-world cabling for 100G/400G/800G Ethernet/Infiniband/FC. The built-in surge current mitigation technology mitigates the DUT risks from being damaged. The broad operating temperature range accommodates the enterprise, datacom, and telecom applications. The loopback module may be used for ports testing, field deployment testing, and equipment troubleshooting.


  • QSFP-DD port/system testing
  • Ethernet IEEE 802.3 (Gigabit, 10 Gigabit and 25 Gigabit Ethernet)
  • SONET, SDH, GBE, Fiber Channel Support


  • OSFP Octal Small Form Factor Pluggable Module, Rev 3.0
  • Common Management Interface Specification, Rev 4.0
  • QSFP-DD/QSFP-DD800/QSFP112 Hardware Specification, Rev 6.01
  • UM10204, I 2 C-bus specification and user manual, Rev. 6 – 4 April 2014
  • IEEE Std 802.3cd
  • IEEE Std 802.3ck
  • IEEE 802.3cd
  • IEEE 802.3ba,
  • IEEE 802.3bj
  • SFF-8024, SFF Cross Reference to Industry Products, Rev 4.7

Ordering Information:

Part Number Product Description
R2-QDD8-30W-LP 800G QSFP-DD Loopback 30W
R2-QDD8-0W-LP 800G QSFP-DD Loopback 0W