I want to extend my multiscreen to a 3rd TV

[Herminia]

need to know wht ito do with my existing hardware , can it cope with a second minibox ? 

[TimmyBGood]

@Herminia 

Any 2TB main Q box can support two Mini boxes in simultaneous use, as can the 1TB UHD/HDR box.

The original non-UHD 1TB main box can only have one Mini in use at a time.

[TimmyBGood]

@Herminia 

To check which Sky box you have:

1. Press Home on your Sky Q remote.
2. Select Settings followed by System info.
3. Check your Hardware version and use the table below to see which type of Sky Q box you have.

Hardware version number	Type of Sky box	Software version number	HDR-capable?	Upgrade available?
32B0xx	Sky Q 2TB	Q210.000.6.03L	No	Yes - you can upgrade to the latest Sky Q 2TB box.
32B1xx	Sky Q 2TB	Q210.000.6.03L	Yes	No - you're already on the latest Sky Q 2TB box.
32B2XX	Sky Q 1TB UHD or Sky Q 2TB*	Q210.000.6.03L	Yes	Check the * information below the table.
32Cxx	Sky Q 1TB	Q210.000.6.03L	No	Yes - you can upgrade to a Sky Q 1TB UHD Box
32Dxx	Sky Q Mini box	Q210.000.6.03L	No	No - you already have the latest Sky Q Mini box

*Not sure if you've got a Sky Q 1TB UHD or Sky Q 2TB box?

Check the Music section to confirm your box type:

1. Press Home on your Sky Q remote.
2. Scroll to Music then select Your music.
3. Select Play your music using Airplay. You’ll see your box type listed (e.g. Sky Q 2TB Box2725).