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Fake or legit?

Posted: Tue Mar 07, 2023 7:50 am
by MRamone
Hi,
I have been using wrovers from a reputable distributor. Yesterday I received some new wrover E from a "not so well known" source. The front is very similar, just the size of the letters is a bit different, but was called strongly my attention is the back. The "reputable" seller boards (picture, left) have a lot of visible vías, while the new boards have much less (picture right). My question is, fake or legit?
Thanks for your comments.
IMG_20230307_083532.jpg
IMG_20230307_083532.jpg (1.56 MiB) Viewed 2716 times

Re: Fake or legit?

Posted: Tue Mar 07, 2023 11:53 am
by ESP_LJH
It should be due to different thickness of silkscreen layer.

Re: Fake or legit?

Posted: Tue Mar 07, 2023 2:33 pm
by MRamone
ESP_LJH wrote:
Tue Mar 07, 2023 11:53 am
It should be due to different thickness of silkscreen layer.
So i understand that it might be legit then?

Re: Fake or legit?

Posted: Wed Mar 08, 2023 12:40 am
by ESP_Sprite
Looks like a different PCB manuf but the same module. One uses 'open' vias, the other uses plated-over vias. (You can still see where the vias are because they leave slight 'bumps' in the copper.)

Re: Fake or legit?

Posted: Wed Mar 08, 2023 2:16 am
by ESP_LJH
Yes, it should be legit, and they should be manufactured by different factory.

Re: Fake or legit?

Posted: Wed Mar 08, 2023 5:23 am
by MRamone
Thank you all, much appreciated.