Buy new DM 800 HD

[max246]

Hello guys,
I am looking for a new DM 800 HD SE, with 400mhz cpu but I am not sure if there is a big difference between the version 400mhz and 300mhz.
Ok one it's faster than the other one....
I'd like to buy this one that is a "clone" of the original one:

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http://www.dreamboxshops.co.uk/satellite-receiver/dvb800se.html

Is that working as the original one and I can use Gemini enigma 2 without any problems?

Thanksss