PCB installed inside of aluminum alloy U disk shell, portable, safe and reliable! Interface definition directly marked on the shell, clear, convenient and practical! 5V, 3.3V offers at the same time, allowing you to program your target board with both 5V and 3.3V Shell characters using laser engraving, never fade off! Permanent clarity! 500MA internal resettable fuse, complete protection of your expensive computer motherboard! SWIM cable for connection to the application via a pin header or a 2.54 mm pitch connector SWIM programming speed rate: 9.7 Kbytes/s in low speed and 12.8 Kbytes/s in high speed

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