http://msdn.microsoft.com/en-us/library/microsoft.windowsazure.storageclient.cloudblobclient.singleblobuploadthresholdinbytes.aspx

I used the same name to try and help it match up. And from the documentation at the URL above, 

The maximum size of a blob, in bytes, that may be uploaded as a single blob, ranging from between 1 and 64 MB inclusive. The default value is 33554432 bytes (32 MB)