Just make sure your computer has a serial port or you have access to a computer with one. They are getting more rare, but they are still included on some new mother boards, even the 270 chipset.
Who cares if it is "low" speed...so to upload a new sat list it will take 5 seconds instead of 2.
That is the only time you would ever use it as there are no longer in firmware upgrades for those older meters.
Just picked it up today lights up and works for right now. It showed me DN satellites but i can add more to it. I got the cables too. I just need a new battery for it what do you think. The guy used to install DN for Ligtel in Kendellville so he said he didnt any more.