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# CKOperationGroup.TransferSize

Constants that represent possible data transfer sizes.

```
enum TransferSize
```

## Topics

### Transfer Sizes

[`CKOperationGroup.TransferSize.kilobytes`](/documentation/CloudKit/CKOperationGroup/TransferSize/kilobytes)

A transfer size that represents 1 or more kilobytes.

[`CKOperationGroup.TransferSize.megabytes`](/documentation/CloudKit/CKOperationGroup/TransferSize/megabytes)

A transfer size that represents 1 or more megabytes.

[`CKOperationGroup.TransferSize.gigabytes`](/documentation/CloudKit/CKOperationGroup/TransferSize/gigabytes)

A transfer size that represents 1 or more gigabytes.

[`CKOperationGroup.TransferSize.tensOfMegabytes`](/documentation/CloudKit/CKOperationGroup/TransferSize/tensOfMegabytes)

A transfer size that represents tens of megabytes.

[`CKOperationGroup.TransferSize.tensOfGigabytes`](/documentation/CloudKit/CKOperationGroup/TransferSize/tensOfGigabytes)

A transfer size that represents tens of gigabytes.

[`CKOperationGroup.TransferSize.hundredsOfMegabytes`](/documentation/CloudKit/CKOperationGroup/TransferSize/hundredsOfMegabytes)

A transfer size that represents hundreds of megabytes.

[`CKOperationGroup.TransferSize.hundredsOfGigabytes`](/documentation/CloudKit/CKOperationGroup/TransferSize/hundredsOfGigabytes)

A transfer size that represents hundreds of gigabytes.

[`CKOperationGroup.TransferSize.unknown`](/documentation/CloudKit/CKOperationGroup/TransferSize/unknown)

An unknown transfer size.


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