Summary:

QSFP28 Narrow HCB, provides an efficient and easy method to test and characterize line cards with 4x28G QSFP28 ports.

The ML4020 simply plugs into a QSFP28 slot and provides access to RX and TX ports through high performance signal integrity breakout path.

Uses 2 high-density Huber+Suhner MSMPM connectors.