Starting today, Amazon EC2 D3en instances, the latest generation of the dense HDD-storage instances, are available in the Europe (Frankfurt), Asia Pacific (Singapore), Asia Pacific (Tokyo) regions. D3en instances are ideal for workloads including distributed / clustered file systems, big data and analytics, and high capacity data lakes. With D3en instances, you can easily migrate from previous-generation D2 instances or on-premises infrastructure to a platform optimized for dense HDD storage workloads.
Source:: Amazon AWS