AlfaSpid is a rotator family which fits very well for remote control. The connection is very simple a cable from the PC to the Control-RRC and one cable from the Radio-RRC to the Rotator control box. Be sure to order a controlbox with RS-232 when you order your rotator.
If you want a webbased rotatorcontrol the Webswitch 1216H with adapter 1216S can be used or the RC-1216.
In RRC1258-MkII both COM 1 and COM 2 can be used depending on which is free.
How to convert a AlfaSpid USB controlbox to a RS-232 control box.