No not correct TM5402 HD is not a linux box so it cannott do sharing its only a client box only and cannott do CCcam .
Only Dreambox can do this since it is infact a linux box ,
So im afraid you may need to do some research on these boxes
for what they actually can do ,
I wouldnt really honestly reccomend either box to be honest and i have both of them myself ,lol's !
the easy option is TM5402HD just for viewing and easy set up via USB ..the DM800HD will require much more knowledge of linux boxes to set up properly but possibilities are not restricted whatsoever .
my reccomendation would be DM800SE HD by far and away the best sat box ive ever had and yes rather expensive but if you want the best out there in my opinion that is it ,
or VU+ box which is cheaper but still a highly rated box which is still very much popular .
hopefully this information helps to make the right choice ,
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Barney