QTS REALTY TRUST, INC., EACH OF THE SUBSIDIARY GUARANTORS PARTY HERETO, and DEUTSCHE BANK TRUST COMPANY AMERICAS, as Trustee INDENTURE DATED AS OF October 7, 2020 3.875% SENIOR NOTES DUE 2028 CROSS-REFERENCE TABLE*Indenture • October 7th, 2020 • QualityTech, LP • Real estate investment trusts • New York
