I can also read a specification - something you cannot.

You appear to be labouring under the misconception that the dust cover turns the device off. I'm happy to have pointed out you are wrong.

1. You cannot read the document

2. You believe that tests on one manufacturers device apply to all other - WRONG.

3. Actual results that I have now posted show that when the USB ports are not in use there is still power used.

I wonder if the dust covers do actually operate micro-switches? I've never seen a usb port covered except on mobile phones.

I have no need to read technical documents, further I have no need to carry out experiments - I just ring a man who can. MK Technical department confirms the device draws 12mA on standby.

So, total proof that I am correct and YOU were wrong.

It also demonstrates that you definitely did not read the document correctly.

You mean the things 69bertie has bought?

That will be per unit as well of course - he said he'd done a few.

But more importantly now, I wonder if one or more is putting out noise it shouldn't?

You didn't say 12mA at any point.

I said just under 7 mA. The email from MK that I received at 12:21 states 150mW which equates to 6.5 at 230v.

I see where you're going wrong - there are 2 sockets.