Overview
The SEGGER J-Link PLUS Compact (SKU 8.19.28) is a USB-powered JTAG/SWD debug probe in a small, mountable enclosure with USB-C. It offers the same functionality as the J-Link PLUS Classic, providing up to 15 MHz target interface clocking and SWO sampling up to 30 MHz via the standard 20-pin 0.1″ header. The J-Link Software and Documentation Pack includes GDB Server integration for major IDEs, the Ozone debugger and J-Flash for production-grade flash programming. A built-in Virtual COM (VCOM) bridge exposes a target UART to the host for logging and CLI access.
Part of the J-Link Family
If you need higher interface speeds, see J-Link ULTRA+. For Ethernet and test farms, see J-Link PRO. For entry-level use, consider J-Link BASE Compact. Adapters are available for compact headers, e.g. the 9-Pin Cortex-M Adapter.
Why Consider This Model?
The PLUS Compact balances performance, broad device/IDE support and a space-saving form factor that’s easy to secure inside fixtures or service kits. It is a practical, long-lived choice for multi-vendor ARM projects where consistent tooling, SWO visibility and dependable flash programming matter.