LPT port 2 bit diagnostic card for Desk pc and notebook

LPT port 2 bit diagnostic card for Desk pc and notebook

It is fit for both laptop and desktop with the parallel port (LPT), to which POST codes is output.
2. The power providing of L20 is used with USB.
3. Court defects by difference sounds coding with build-in speaker.
4. It can diagnosis the motherboard signal which show the problem of CPU, Memory, display card and so on.

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