<!--
{
  "availability" : [
    "DriverKit: -",
    "iOS: -",
    "iPadOS: -",
    "macOS: -"
  ],
  "documentType" : "symbol",
  "framework" : "DriverKit",
  "identifier" : "/documentation/DriverKit/SCSI_Capacity_Data_Long/BLOCK_LENGTH_IN_BYTES",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "DriverKit"
    ],
    "preciseIdentifier" : "c:@S@SCSI_Capacity_Data_Long@FI@BLOCK_LENGTH_IN_BYTES"
  },
  "title" : "BLOCK_LENGTH_IN_BYTES"
}
-->

# BLOCK_LENGTH_IN_BYTES

```
UInt32 BLOCK_LENGTH_IN_BYTES;
```

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)