This is a forum where all kinds of personal thoughts and experiences can be found. Members can post links to different brands of certain devices. If a reference is a result of good/bad personal experiences based on own use or a more or less veiled ad can be hard to detect. Your personal interest in your link is not hidden so I think most can read it as valuable related information.
I can say thanks for the info. Never heard of these devices and it looks good even if SeaTalk1 starting to be less common these day's? Pure N0183 multiplexing and filtering can be handled by OCPN itself in a very good manner. But a device for many serial
to one USB can of course be valuable instead of several RS232-USB converters.
A manual/wiki referring to specific brands as example of devices suitable for the discussed purpose can of course be a veiled ad but that would soon be clear for most readers. It's up to each and everyone to judge what's read. As always.
A good example here of often mentioned brands are Acticense and YD for N2k conversion. There are not so much known alternatives so any further info in that matter, veiled ad or not, would be valuable I think.