It's TPM chip just below of the smartcard reader, on the motherboard, you can take a photo and we will tell you. It's an original box or a clone DM900UHD you have ?

Here you have some examples,
http://www.ourdreambox.com/ubbthreads.php?ubb=showflat&Number=18994
and here,
http://www.ourdreambox.com/ubbthreads.php?ubb=showflat&Number=17744

TS
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DM8000, DM800se, DM500HD, DM800HD, DM7025, DM7020s, DM7000, DM500s
VU+ Solo, VU+ Uno, VU+ Duo, Kathrein UFS910
Tivusat, TNTSat, Fransat, SSR/TSR, BBC1-2-3/ITV
DE-OpenBlackHole 1.4 image : http://www.openblackhole.com/