[1000mp] LPT CW Interface

[Alex NE7L]

From: "Tad Williamson" <ironbutttad at yahoo.com>
> Alex, if you have a USB port, you could use a
> USB-to-Serial adapter and then use a WinKey interface.
> 
> Good luck, Tad, WF4W

From: "Joe Subich, W4TV" <W4TV at subich.com>
>    ... Joe Subich, W4TV 
>        microHAM America, LLC. 

Well,
what's the difference between WinKey and microHAM Interface ?
what do I miss if I choose one but not another ?

Alex, NE7L