# AWS Data Transfer optimization | Cloud Efficiency Hub

Canonical: https://www.pointfive.co/efficiency-hub/cloud-services/aws-data-transfer

2 documented AWS Data Transfer cost inefficiencies, each with how to detect it and how to fix it.

[Cloud Efficiency Hub](https://www.pointfive.co/efficiency-hub) 

2 documented AWS Data Transfer cost inefficiencies, each with how to detect it and how to fix it.

## 2 inefficiencies

[All services](https://www.pointfive.co/efficiency-hub#browse-by-service)

- AWS Data Transfer  CER-0002

### [Imbalanced Data Transfer Between Availability Zones](https://www.pointfive.co/efficiency-hub/inefficiencies/imbalanced-data-transfer-between-availability-zones)

Some architectures unintentionally route large volumes of traffic between resources that reside in different Availability Zones - such as database queries, service calls, replication, or logging. While these patterns may be functionally...

Networking

- AWS Data Transfer  CER-0354

### [Avoidable Inter-Region Data Transfer](https://www.pointfive.co/efficiency-hub/inefficiencies/avoidable-inter-region-data-transfer)

Data that leaves one AWS Region for another is billed per GB by the source Region, and the charge recurs every time the data moves. Much of this traffic is not driven by a resilience or latency requirement: S3 Cross-Region Replication...

Networking

## More AWS services

- [AWS EC2  23](https://www.pointfive.co/efficiency-hub/cloud-services/aws-ec2)

- [AWS RDS  19](https://www.pointfive.co/efficiency-hub/cloud-services/aws-rds)

- [AWS S3  15](https://www.pointfive.co/efficiency-hub/cloud-services/aws-s3)

- [AWS Lambda  12](https://www.pointfive.co/efficiency-hub/cloud-services/aws-lambda)

- [AWS EBS  10](https://www.pointfive.co/efficiency-hub/cloud-services/aws-ebs)

- [AWS CloudWatch  8](https://www.pointfive.co/efficiency-hub/cloud-services/aws-cloudwatch)

- [AWS EKS  8](https://www.pointfive.co/efficiency-hub/cloud-services/aws-eks)

- [AWS ElastiCache  8](https://www.pointfive.co/efficiency-hub/cloud-services/aws-elasticache)

- [AWS DynamoDB  7](https://www.pointfive.co/efficiency-hub/cloud-services/aws-dynamodb)

- [AWS Bedrock  6](https://www.pointfive.co/efficiency-hub/cloud-services/aws-bedrock)

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Source: the public page above. Product screenshots and illustrative interfaces are examples, not live customer data.