The Teledyne LeCroy Voyager M4x is a USB protocol analyzer and exerciser system that simultaneously captures and generates traffic across USB 2.0, USB 3.2, USB4, and Thunderbolt 3 interfaces. It delivers integrated analysis and traffic generation with hardware-based triggering, compliance automation, and error detection for comprehensive protocol validation and debugging.
Technical Specifications
Supported Protocols
• USB 2.0, USB 3.0 / USB 3.1, USB 3.2 (Gen2x2, Gen3x2 up to 20Gb/s aggregate)
• USB4 (up to 40Gb/s aggregate)
• Thunderbolt 3
• Power Delivery (PD)
• DisplayPort Alternate Mode (Aux only)
• Sideband and Control Channel (SBU/CC) messages
Data Capture and Storage
• Recording memory up to 32GB for extended sessions
• Data upload via USB 3.0 and Gigabit Ethernet at sustained rates up to 600Mbps
Physical Characteristics
• USB4 rated connectors supporting full 40Gb/s data rate
• Native USB Type-C ports
• Weight: 5.1 kg (12 lbs.)
• Field upgradeable firmware
– Key Features
• T.A.P.4™ probing technology for high-fidelity signal capture and link training analysis
• Hardware triggering on bus states, ordered sets, VBUS/CC voltages, PD messages, and header fields
• Error detection spanning USB4, USB 3.2, and PD protocol violations including training sequences, SCR content, and CRC errors
• HopID filtering for isolation of specific traffic paths and functions
• CATC Trace Analysis Software with transport layer expansion/collapse capabilities
• External trigger In/Out via SMA connectors for oscilloscope and logic analyzer synchronization
• Cascading analyzer support for multi-system synchronized recording
• Automated compliance suites for USB Type-C, PD, USB4, and USB 3.2 link layer
• Active and passive cable environment compatibility
– Typical Applications
• USB4 and Thunderbolt 3 protocol validation and compliance testing
• USB Power Delivery debugging and verification
• Link layer and training sequence analysis
• Custom packet generation and host/device router emulation
• Multi-system protocol correlation and trigger synchronization
– Compatibility & Integration
Optional USB4 Compliance License enables execution of official USB-IF USB4-CV compliance tests. USB Type-C Functional Verification Suite option validates logical port operation and compliance. External triggering supports integration with standard test equipment.
















