What a load of BS - (the info I mean)
This has a Samsung panel inside it (SDC) and ALL Samsung electronics - main board and t-con etc
(I could give you the part numbers)
correct it does not have sound connect, but so what

Hell of a deal if it's genuine, stonkingly good 4k tv. Check avforums thread for settings suggestions, the quality will blow you away for the price.

£409

Please read deal's description...

ordered

From the side-view picture, it looks like it has 4 x HDMI and 3 x USB (1 USB 3.0).

According to specs online I understand 3 HDMI, 2 USB

After speaking to a Samsung rep, I was told that this is a rebadged tv that they got made for Black Friday.
No sound share option, so if you want to connect wirelessly to a Samsung soundbar, unfortunately this isn't an option.

What else does the rebadging mean? Anything to be concerned about?

Product description has the same product code as Samsung UE48JU6000. This also matches the EAN number. There is no mention of it being rebadged in the description. A rebadged product would usually have a different product number, much like John Lewis TV (rebadged LGs).
The description looks like a solid bargain for a Samsung TV.