Keep-whole modulesKeep the moduleHand tools, works as-is

USB webcam

Also called UVC camera, laptop camera.

If a computer enumerates it as a camera, stop. That module is worth more than any chip inside it. Laptop internal cameras are often USB and often still UVC, sometimes on a tiny daughterboard with the microphone.

If you are new to this category

Some scrap is already a finished object: a webcam a computer recognizes, a barcode scanner that types numbers, an amplifier board between a jack and a speaker. Opening these to pull a chip almost always throws away the useful thing. If it still works when you plug it in, stop there.

Test the whole module before you unscrew it. A working webcam is worth more than the parts inside a dead one.

Stop when it still works

Plug the module in before you take it apart. A webcam the computer already sees, a scanner that types into a text box, or a speaker board that plays music is the finished part. The chips on the board are not an upgrade.

Specification. The right-hand column is what is typical. The label on the part in your hand wins if they disagree.
What to look for	Usual figure
Interface	USB, 5 V. A raw MIPI camera from a phone is not this part and will not plug into a PC.
Microphone	Often on the same cable

Volts are electrical pressure, amps are how much current is flowing, and ohms are how hard the part resists that flow. A higher voltage than the part was built for is how salvage parts die on the bench. If a cell in the table says “read the stamp”, that stamp is the whole specification.

What people actually use it for

A camera
A document stand
Machine vision that does not need to be good

Leave this one when

The image is black because the lens flex was torn. A torn flex is the usual laptop-camera death.

Buying a new one is the better idea when

Never, if this one still enumerates. A new camera if you need an image that is actually sharp.

How to tell if this one still works

Plug it in. If the OS sees a camera, you are done.

Tools you will want: A computer.

Where people actually find it

3 notes, most useful first. “Leave it” means the part is in that machine and you should not take it: it is dangerous, worn out, or only useful if you already know that exact repair.

Harvest at a glance
From	Call	How many	How often	Where it sits
Webcam	Prize	1	always	The whole thing.
Laptop	Worth it	1	sometimes	Top of the display bezel.
Mobile phone	Leave it	1–3	always	Camera modules.

Prize — take this firstWebcam1 · always
In this particular machine
UVC over USB.
Where to look
The whole thing.
How to get it out
Do not open a working one.
The condition to expect
Usually good.
Worth pullingLaptop1 · sometimes
In this particular machine
Often a USB camera on a short cable. Sometimes the microphone is with it.
Where to look
Top of the display bezel.
How to get it out
Test before you celebrate. Some are UVC, some need the original board.
The condition to expect
The flex is the usual casualty.
Leave it — present, not yours to reuseMobile phone1–3 · always
In this particular machine
MIPI CSI. Not USB.
Where to look
Camera modules.
How to get it out
Do not expect a PC to see it.
The condition to expect
Useless without the original SoC or a dedicated bridge you already know.