Blackstone Group will acquire data center operator QTS Realty Trust in a $6.7 bn deal. The deal will cost Blackstone around $10 bn, considering QTS’ existing debt. The operator has over  7 mn square feet of data center space spreading across North America and Europe. Blackstone Group’s infrastructure unit and non-traded real estate investment trust will pay $78 per share for QTS, which is a premium of about 21% to QTS’ closing price last Friday.