I'm getting a H20 today to replace a six year old RCA box. I'm currently controlling the RCA box with my htpc via the data port. They are connected with a serial to usb cable. I see the H20 doesn't have a data port but instead has a usb port. I've found usb to serial cables that can control the H20. However my htpc doesn't have a serial port. Could I just use the usb to serial from the H20 and connect that to my serial to usb to go back to the htpc? I'm assuming it's not as easy as just using a normal usb cable to connect the two. Thanks for any help.