Kvaser Leaf v3 CAN FD Interface – USB 2.0, 1 Channel, DSUB 9-Pin, Galvanic Isolation

Overview

The Kvaser Leaf v3 is a compact, low-cost bridge between a PC and a CAN bus network. It enables you to monitor and transmit CAN and CAN FD data with a simple USB connection. The device's ergonomic, pocket-friendly housing is designed for both desk setups and field work, and no external power is required.

With galvanic isolation as a standard feature, Leaf v3 protects your system from power surges and electrical noise while you diagnose or log data. Its USB 2.0 interface keeps things straightforward and widely compatible, and the unit can reach high throughputs without adding clutter to your workflow.

Key capabilities

• 20,000 messages per second, each timestamped with 50 microseconds precision
• CAN FD support up to 8 Mbit/s for flexible CAN networks
• Plug-and-play installation powered by a standard USB A connector
• Silent mode for non-intrusive listening during analysis
• Standard galvanic isolation enhances protection from surges and electrical disturbances

Real world use and ecosystem

In daily testing, connect quickly to a running CAN network, observe traffic in real time, log frames, and inject data when needed. The Leaf v3 works with SocketCAN and Windows or Linux hosts, and it supports multiple devices on the same host for side-by-side tests or complex test rigs.

• Robust software support via Kvaser CANLIB SDK and a wide range of partner tools for ECU development, diagnostics, and calibration
• Supports common buses and standards such as J1939, CANopen, NMEA 2000 and DeviceNet when paired with advanced software

By focusing on essential CAN and CAN FD functionality with a minimal footprint, Leaf v3 offers a flexible, reliable option for engineers, technicians, and researchers seeking to observe, analyze, and influence controller-area networks without overpromising results.