How to Make an USB Killer




About: HI! I am Junez Riyaz, currently doing Bachelor of Technology in the field of Electronics and Communication Engineering. I am much interested in inventing something new yet from my childhood. In my leisure ti...

USB killer is a device which is similarly looking to USB flash drive and discharges high voltage.It has the capacity to destroy the desktop, mobile and other USB connectivity devices.

Now I am going to instruct how to make an USB Killer with less number of components.
Lets Get Started..

Step 1: Components Required

Mosquito Zapper [Amazon / ebay]

USB Case [It can be obtained from Old/Trash USB flash drives]

Male USB jack [Amazon / ebay]

Female USB jack [Amazon / ebay]

Step 2: Circuiting

1. Open case of the Mosquito Zapper and remove the circuit

2. Remove the discharging capacitor at output of the circuit.

3. Solder USB female jack in place of removed capacitor.

4. Solder USB male jack to the Capacitor removed as shown in circuit and place in the USB case .

5. Apply electric tape for more safety.

6. Charge this USB by inserting into the female USB jack of Zapper circuit.

Here USB Killer Completed.

Note : Using of this USB killer will destroy your device , use it on your own risk.

Step 3: Construction and Testing

Feel free to comment.

For more projects subscribe my youtube channel [Click Here]



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    6 Discussions


    2 years ago

    Silly question......what would be the purpose of building the device you describe in your instructable? Is it purely to destroy a pc through the usb port?

    3 replies

    Reply 5 months ago

    I know this post is 2 years old, but I still came across it. I’m an assistant IT tech at a large business and I looked this up for the purpose of destroying a PC that is 7 years old and a 3rd person hand me down to an accountant that is running win7 on an i3-2000 series, 4gb RAM, etc, and constantly uses 6-10 programs at once on 2 screens to do her job. She waits about 90 seconds for outlook to open, constantly non responding and freezing programs, and the only way that the company will replace her machine is if it stops working. I agree that nothing should ever be destroyed, but in this instance, in order for her to get her job done more efficiently, something that will end this PC’s life with the HDD intact would help productivity quite a bit, and stop the constant struggle on the old machine, despite my best efforts to “get” her a newer one, the diagnosis is that this one must cease to function for that to happen.


    Reply 2 years ago

    Nah, I still see no good in it.

    The useless destruction of anything should be looked down upon.

    The ONLY possible use for such a thing might be if the owner of the connection point wanted to cost themselves money and resources.

    Otherwise you're making a way for immature individuals to hurt others.

    I don't comment much, but this Instructable shouldn't exist.


    Question 1 year ago on Step 3

    will it work when i just put the usb with the capacitor without charging it?


    2 years ago

    Wow, this is cool!

    I had a ton of fun with this design, thanks <3