Atmel-ICE-C, ATMEL-ICE-PCBA, Powerful development tool for debugging and programming Atmel SAM and AVR microcontrollers
In-system programming - Wikipedia
Programmers and Debuggers
JTAGICE mkII Emulator Programmer Debugger JTAGICE mk2 MKII USB ISP for Atmel AVR for Arduino AVR Studio Keil IAR GCC Clone Ver|isp usb|isp usb programmerisp programmer - AliExpress