Hi ! I have many Dec Pro 350's and a Pro 380 . Two with double RD53's, the rest with one RD52 each. I have all on network, but sadly one DECNA-K network card stopped working. If anyone have one to let I can pay, or swap with one PRTIL's all included . This Real Time Interface is very nice with two RS232's, one IEE488 and a 30 line A/D converter ! The latter was used for laboratory and industrial control / messurements. I even have some software for it?! Please contact me if you have a working DECNA-K to go .