Now, you can use Amazon DynamoDB Accelerator (DAX) r4 instance types in the Asia Pacific (Tokyo) Region. r4 instance types are the latest generation of DAX nodes and are designed to support production applications and workloads.
DAX provides you a fully-managed, highly available, in-memory cache for DynamoDB that is capable of accelerating reads from Amazon DynamoDB tables by up to 10x, even at millions of requests per second. You can use DAX without making changes to your existing application logic and using your current DynamoDB API calls. DAX manages cache invalidation and data population on your behalf.
DAX is available in the US East (N. Virginia), US East (Ohio), US West (Oregon), US West (N. California), South America (São Paulo), EU (Ireland), Asia Pacific (Singapore), Asia Pacific (Tokyo), Asia Pacific (Sydney), and Asia Pacific (Mumbai) Regions.
For DAX r4 instance type pricing in the Asia Pacific (Tokyo) Region, see DAX Pricing.