Mounted in a yoga 2 13 has done its job, it offers 476go NTFS format. The reactivity and storage are at the rendezvous, it replaces the sshd originally fitted. That is the price that bit slow, I would have the mx100 Version M2 format if it had existed, hence my choice on a M550. Too bad, that there is engaging with the fastening screw, not supplied either by the PC manufacturer.