AWS SDK for .NET Documentation
PartSize Property
AmazonAmazon.S3.TransferTransferUtilityUploadRequestPartSize Did this page help you?   Yes   No    Tell us about it...
Gets or sets the part size of the upload in bytes. The uploaded file will be divided into parts the size specified and uploaded to Amazon S3 individually.
Declaration Syntax
C#
public long PartSize { get; set; }
Value
The part size of the upload.

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)