I was in need of an external cw keyer for N1MM & DXLabs. Following the advise from SOTA friend - Mikel EA2CW - I decided to go for the Winkeyer WK2 serial from K1EL. $42 delivered to the UK.
The kit is very well documented, the quality is good, the functionality is great and integration with N1MM and DXLabs (Winwarbler) is seamless.
To complete the project, I got an Altoids enclosure, 3 x 3.5mm audio sockets & a USB to serial cable.