Any USB/Ethernet controller suggestions?

[m_c]

AM882's are being replaced with EM806's, you try and find an EM806 in China they just don't retail them in the Asian Market. The only difference I can see according to the manual is the EM806 has different firmware relating to the motors. Region specific for the US and EU markets as the motors relate to ones they offer here. Probably the same motor different part number.

EM806's for US and EU and AM882 for Asian markets at least for now seems to be the rule, the AM882 are £60, the EM806 are ~£100

I'll strip one of the AM882's and get pics would be interesting to see what's inside the EM806 and if it really is identical except for firmware.

AM882 and EM806 are solid state tech unless you're unlucky these things will last forever.

How much did you pay for your analog drivers? I paid £200 for 4 AM882's but 2 were 2nd hand it would be £240 for new.

AM's are not CE/UL type approved as standard, whereas EM's are.
I'm guessing the original AM's failed the tests, so they had to redesign the hardware to pass the tests, and is why only one version of the AM was produced. Once they had the hardware able to pass the tests, they scaled it to create the other drives.
The fact AMs are still available, will be likely Leadshine had them designed, in production, and being sold, before final testing for approval.

Within Europe, it's illegal to sell a non-approved drive to an end user (aka consumer), which is why AMs are not sold by any official European seller. They can be sold to a system builder/integrator, as the onus for meeting the required approvals then falls on the system builder.