The ML4070-QSFP is a state-of-the-art transceiver test set specifically designed for quick production testing of Go/No Go applications. It features Pulse Pattern Generators and Error Detectors as well as QSFP host control circuitry with power supply noise injection capability. The ML4070 displays 3 QSFP ports for 0 dB and 9 dB trace loss as well as for loopback. A full set of APIs and a production GUI enable quick one-button measurements and automatic report generation.