# LaunchTemplateBlockDeviceMapping
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Describes a block device mapping.

## Contents
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 ** deviceName **   
The device name.  
Type: String  
Required: No

 ** ebs **   
Information about the block device for an EBS volume.  
Type: [LaunchTemplateEbsBlockDevice](API_LaunchTemplateEbsBlockDevice.md) object  
Required: No

 ** noDevice **   
To omit the device from the block device mapping, specify an empty string.  
Type: String  
Required: No

 ** virtualName **   
The virtual device name (ephemeralN).  
Type: String  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/ec2-2016-11-15/LaunchTemplateBlockDeviceMapping) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ec2-2016-11-15/LaunchTemplateBlockDeviceMapping) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/LaunchTemplateBlockDeviceMapping)