Hi Nicola. I ordered a 2K-FA in early March and it arrived in Australia last week. Although I have not yet received delivery (it should arrive in the next week or so) I have been assured that my unit DOES have the new serial control port.
I have already received the documentation from the local distributer, 2K-FA Manual ver 2.0 in PDF, which confirms that it does have a serial port. It was shipped in mid July, so I presume that any unit shipped after this date will have the serial port.
As soon as I get the chance, I will test it with my pair of RomoteRig 1258MarkII RRCs and TS480 and let you know, however I am sure it will interface ok
73
Winston VK7WH