| Feature | Old Driver (Legacy) | New Driver (2024/25) | | :--- | :--- | :--- | | | 1 Mbps (unstable above 800k) | Stable 1 Mbps, experimental 5 Mbps (FD frames) | | Buffer Depth | 1000 frames per second | 8000+ frames per second without drop | | OS Support | Windows 7, 8, 10 (32/64bit) | Windows 11, ARM64, Linux Kernel 6.x, macOS Ventura+ | | API Library | Proprietary VCI | Unified SYSX-CAN (SocketCAN compatible) | | Timestamp Resolution | 1 ms | 100 µs (microsecond) | | Plug & Play | Required manual COM port mapping | True PnP with automatic instance numbering |
For Ubuntu/Debian (kernel 6.2+):
The (version 4.2.0 or later, as of late 2024/early 2025) marks a departure from older legacy drivers (v2.x and v3.x) that suffered from buffer overflows on high bus loads (500kbps+). Key Features of the New USBCAN Driver The "new" designation is not just marketing. Chuangxin Tech has addressed several long-standing pain points: chuangxin tech usbcan driver new