Starting today, Amazon EC2 High Memory instances with 3TiB (u-3tb1.56xlarge) of memory are now available in the AWS GovCloud (US-West) Region and instances with 9TiB (u-9tb1.112xlarge) of memory are now available in the AWS GovCloud (US-East) Region. Customers can start using these new High Memory instances with On Demand and Savings Plan purchase options.