What is UGW1-SpotUsage:m4.xlarge?

Last updated: March 31, 2025

The amount of running hours of EC2 Spot Instances. Spot Instances offer savings of up to 90% over On-Demand Instances but can be interrupted by AWS when the capacity is needed.

The prefix represents the AWS GovCloud region in US West.

The postfix represents the instance type, m4.xlarge.