Today, we are announcing the general availability of Amazon Aurora I/O-Optimized in the AWS GovCloud (US-East and US-West) Regions. Amazon Aurora I/O-Optimized is a new configuration that provides improved price performance and predictable pricing for customers with I/O-intensive applications. Aurora I/O-Optimized offers improved performance, increasing throughput and reducing latency for customers’ most demanding workloads. With Aurora I/O-Optimized, there are zero charges for read and write I/O operations—you only pay for your database instances and storage usage, making it easy to predict your database spend up front.
Source:: Amazon AWS