00:00So here I have this little 7 port USB 2.0 adapter, or like multi-hub, where you can
00:12plug 7 ports into one USB. It's got all of these little switches so you can turn each
00:18port off manually, I don't know really why you'd want to do that, I'd prefer to normally
00:22have them all plugged in, but I guess if you do need to disconnect it for whatever reason,
00:27it's having a switch so having to unplug and replug might be easier for you. It's got these
00:31little spots for the lights. There's a blue LED under each, I've plugged it in, I'll show
00:37you now. And as you can see, they turn on and off based on whether the switch is switched.
00:46There's a little hole there, I'm not sure why. On the bottom there's a spot where there's
00:51clearly supposed to be a label but it's missing. I got this for, I think it was about $7, so
00:59very cheap. So let's open it up. It looks like there is a bit of a gap there that I
01:06might be able to fit something through. I'll see if I can open it up and I'll cut back
01:10to that. So I've popped the back off just by putting something thin in there to sort
01:17of separate it. Now we can, that was quite easy. I said easy very weirdly, but that was
01:26easy to take off. Inside we've got this PCB with some USBs on it. And we also have these
01:35little plastic bits under here. The other version of this was the 3 USB and this is
01:40obviously the 7 USB version. So I assume they make one piece of this plastic for that piece
01:46and it's the same piece used in both. And they just made another mount for the additional
01:51four pieces. So it looks like there's two chips. So I assume one is just enough for
02:00the first three and there's the other one for the rest. I think it might be like a total
02:05connections thing. It looks like, wait a minute, it's got an LED section here. Under here there
02:12should be an LED. Oh, it's got a through hole components there. If you can see that
02:21it's basically a hole to go straight through. They've just soldered these small tiny LEDs
02:28directly onto where the pads are. These little tiny surface mount ones. And they just made
02:36it so the solder they've used to scredge the contacts where the leads for the LED would
02:43normally go. That's quite interesting. So I think the way this works, there's one that's
02:51three and one that's four, is each chip probably has a total of four outputs, or four connections.
02:58So one is the actual output to the computer and then three, so that's a total of four.
03:03This version has a total of eight, so seven there and then one there for a total of eight.
03:08So it's just these switches, only two connected for on and off, and that's just for the
03:13LED and for the USB, I assume. I can't actually plug anything into C,
03:19but they definitely do correspond to turning the lights on and off.
03:22This is for wires for ground, DP, DM and 5V. And I assume this is another power connector,
03:32but I don't really know why it would be necessary if you needed a power computer.
03:38Obviously these are only connected to two leads because you just need to be able to
03:41either bridge it or not. That solder's not very good, it's broken. I don't know if it was me
03:48I don't know if it was me pushing through, but if we look you can see
03:53that's disconnected. I probably won't fix it unless it actually interferes with
04:01the ability to use it too greatly. Looks like they've also only soldered one of the
04:06contacts on the actual shielding of the USB on. So this one, the one on the left isn't,
04:13then this one is, isn't, is. I guess you're picking one, you do need one.
04:23I don't know what these little black strips are. So it's relatively simple, you've got
04:29these two chips, which are actually my controller chips. You've got the USB connecting onto this
04:35PCB, it's got Trader built in. Then you've got the switches for on and off with the
04:40lights. Relatively simple design and like the entire schematic of what was where,
04:46it's all like drawn onto the side, although it's a bit hard to see with those in the way.
04:53It's a shame that that one seemed broken.
04:58So I'll try assembling this again. Let's make sure I have it in the right way.
05:05And try to get that in there. So I think if it's in there, hopefully it should make contact.
05:11Let's move this over to here, so that's in the right spot. And that side goes there,
05:17so now we should have it back together. That's back together. It looks like they're all to work
05:26now, so that's good. So if you like the video, like the video, comment down below your thoughts,
05:30and if you wish to subscribe, so I can make more videos like this in the future.
Comments