Amazon Expanded Instance Types with EBS-Optimized Disks

So, AWS support for EBS-optimized disks for 4th additional types of instances. Now you can request dedicated bandwidth between the EC2 instance and the EBS disk during startup.

Instance type	Dedicated throughput
m1.large	500 Mbps
m1.xlarge	1000 Mbps
m2.2xlarge (new)	500 Mbps
m2.4xlarge	1000 Mbps
m3.xlarge (new)	500 Mbps
m3.2xlarge (new)	1000 Mbps
c1.xlarge (new)	1000 Mbps

The dedicated network bandwidth you get will allow for more predictable disk performance.
You can use this feature with both standard and PIOPS discs.
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Available in US East (Northern Virginia), US West (Northern California) US West (Oregon), EU West (Ireland), Asia Pacific (Singapore), Asia Pacific (Sydney), Asia Pacific (Tokyo), and South America (São Paulo) Regions.