Originally Posted by Gordon Scott
Originally Posted by BIABman
Thanks very much Jim. I'm going to have to investigate the shielding technique you are mentioning. smile
Actually right now my USB SSD's don't even have an enclosure.
I don't remember if you mentioned whether the PC was desktop/tower or a laptop. If the latter, this is probably infeasible, but if the former it probably should.

Have you considered putting everything you can inside a "Faraday cage". You'd need to make a suitable-sized box out of wire mesh and electrically connect the panels well every couple of inches (solder, soldered braid, copper tape, e.g.: https://www.digikey.co.uk/en/products/detail/3m/1181-X-1-2/111515) and earth the whole thing, preferably with copper braid. You could also fit ferrite beads to any cables right as they come out of the cage, e.g.:

There are DIY designs and ideas on the Web.

In principle that should cut emissions significantly.

Thanks Gord that's very helpful!
Yes my PC (a very small one) is a desktop.
I should mention that I don't currently have enclosures for my SSDs because they were
designed to be internal drives.

But I think your suggestions are promising because my internal SSD is exactly the same as
the one I'd make as external. And the internal one doesn't give me any problems, being housed
in its case.

A BIAB user for more than 30 years (if you can believe it) !