this post was submitted on 03 May 2025
74 points (97.4% liked)

What is this thing?

6594 readers
17 users here now

Let us help you identify that mysterious object you’ve found.

Currently in CHALLENGE mode: If you've got something obscure knocking about, post a picture, and let's see how we do. Please prefix such posts with "CHALLENGE:" so we know we've got a fighting chance.

founded 2 years ago
MODERATORS
 

More photos in the comments. Is it supposed to be connected to the motherboard? I found it in the case. It wasn't connected. I think that the backside is some sort of thermal patch. I can tell that it's not a camera but I'm very confused and the connection reminds me of more of a laptop or phone connection not something you would see in a PC. The data matrix contains the same text as the white sticker.

top 29 comments
sorted by: hot top controversial new old
[–] riskable@programming.dev 43 points 1 day ago

That is a six-pin flex PCB connector. Nothing more. Nothing less.

What did it connect? Dunno. It could connect any number of things that needed six pins for communication.

My wild guess: A floppy drive motor.

[–] dual_sport_dork@lemmy.world 23 points 1 day ago (2 children)

I'm going to buck the trend here and propose that this is probably a component off of a hard drive. It's very common to find that type of flat film cable linking the driver board(s) to various components or the spindle motor on those, and since they have to fit within a defined footprint for a 3.5"/2.5" drive body they often use tiddly little laptop-eque ZIF connectors and so forth. The "thermal pad" on the back is most likely a piece of double sided adhesive foam tape that was mounting it to whatever it originally went with.

The dingus it terminates in definitely looks like it ought to be a mic or a piezo speaker. There's obviously no call for a microphone on a hard drive, but having a little speaker on an industrial/enterprise drive or its controller board definitely makes sense, for the purposes of screaming at the operator if the drive is in an error state. It was probably unplugged by the previous owner to make it shut up, and it's likely that the drive is no longer in that computer because the reason it was screaming at them was because it had failed.

[–] hardcoreufo@lemmy.world 3 points 1 day ago

I thought so too but I looked at about a dozen 3.5inch HDDs and they all use 3 or 4 wire ffcs with much thicker traces.

I'm sure 2.5 inch hdds can use thinner traces for their motors but I can't see why they would need more than 4.

[–] MTK@lemmy.world 4 points 1 day ago

My favorite theory so far, sounds very likely

[–] donuts@lemmy.world 11 points 1 day ago (1 children)

Looks like a connector for an industrial camera. Considering you mentioned they do editing.

It would allow the camera to directly be plugged in to the motherboard (assuming the other end is SATA, but hard to tell) so data can be transferred

[–] MTK@lemmy.world 2 points 1 day ago

It's way smaller, the black circle is about 5mm in diameter

[–] MTK@lemmy.world 11 points 1 day ago (3 children)
[–] algorithmae@lemmy.sdf.org 6 points 1 day ago (1 children)

Unfortunately whatever it is, it is indeed broken off, which makes it harder to identify. The numbers on the flex don't lead to any hits.

It's not a connector, too shallow for pins to seat anything. I doubt it's a speaker. My guess is some kind of sensor, but for what is hard to tell.

It's possible that whatever this is fell into the PC from some other equipment, and isn't related to it. Likely something portable, as desktop PCs don't use that type of connector on the other end

[–] MTK@lemmy.world 3 points 1 day ago

I declare you the likely winner. After looking all over inside of the computer, I couldn't find anything that seems like it's broken or missing a part. I suspect that it really did just fall into the case at some point.

[–] mvirts@lemmy.world 4 points 1 day ago (1 children)

I'm guessing a noise maker, buzzer, beeper, or speaker.

[–] caseyweederman@lemmy.ca 3 points 1 day ago

Too many pins for that. Those would all only require two.

[–] BCsven@lemmy.ca 1 points 1 day ago

The QR code and part numbers might lead you to an actual page of info on the part

[–] officermike@lemmy.world 4 points 1 day ago (1 children)

Any more info about the computer it came out of? Laptop or tower? Approximate age/brand/model? What kind of drives in it? 5.25"/3.5" floppy? Optical disk drives? SATA/PATA?

Initial thought is that the 6-pin end kinda looks like a vacuum tube socket, but I don't know if FFC type cables were a thing in the tube era, and you've only told us "old," not how old.

[–] MTK@lemmy.world 4 points 1 day ago (1 children)

About a decade old, it has GTX TITAN X so not crazy old and it is a tower

[–] hardcoreufo@lemmy.world 1 points 1 day ago (1 children)

what about CPU and motherboard models?

[–] MTK@lemmy.world 1 points 1 day ago

Ga-z170x-gaming 5 I7-6700

[–] DannyBoy@sh.itjust.works 4 points 1 day ago (1 children)

How old of a computerd did you find it in? Definitely looks like mobile technology like you said, not desktop. Looks like some sort of sensor or transmitter/receiver. Thermal imager? Wireless something or other? Something obviously higher powered that needs cooling with the thermal pads you mentioned and not just a basic sensor with the 24 pin connector.

[–] MTK@lemmy.world 2 points 1 day ago

About a decade old, it has GTX TITAN X so not crazy old

[–] poVoq@slrpnk.net 3 points 1 day ago

Maybe part of an case intrusion detector?

[–] originalucifer@moist.catsweat.com 1 points 1 day ago (1 children)
[–] MTK@lemmy.world 1 points 1 day ago

Maybe? But why would it look so complicated? If it is a temperature sensor, I would think it's like an IR one. In which case, why would I have an IR temperature sensor inside a PC case?

[–] carl_dungeon@lemmy.world 1 points 1 day ago (2 children)

Hard to tell but is it broken? The end with the holes looks like it’s either broken off something or missing a piece- hard to tell with fuzzy pic.

[–] SharkAttak@kbin.melroy.org 5 points 1 day ago

Honestly, we have 50MP phones, with stabilization and AI filters and all that, and still we get Bigfoot quality photos.

[–] MTK@lemmy.world 1 points 1 day ago (1 children)
[–] carl_dungeon@lemmy.world 1 points 1 day ago (1 children)

This is wild. It almost looks like a tiny speaker, but the cable is strange for that. I don’t think it’s a thermocouple, - cable looks like it has at least 4 wires in it?

[–] MTK@lemmy.world 1 points 1 day ago (1 children)
[–] carl_dungeon@lemmy.world 1 points 1 day ago

So it’s gotta be some kind of sensor array or something then. Speakers and whatnot wouldn’t have more than 2 or 3.

[–] sorter_plainview -2 points 1 day ago* (last edited 1 day ago) (1 children)

From Reverse Image Search

Looks like a LiDAR mount connector. Any chance this is the item?

[–] MTK@lemmy.world 2 points 1 day ago

Not impossible but seems different