---
title: MAXIMUM_UNMAP_BLOCK_DESCRIPTOR_COUNT
framework: driverkit
role: symbol
role_heading: Instance Property
path: driverkit/scsicmd_inquiry_pageb0_data/maximum_unmap_block_descriptor_count
---

# MAXIMUM_UNMAP_BLOCK_DESCRIPTOR_COUNT

## Declaration

```occ
UInt32 MAXIMUM_UNMAP_BLOCK_DESCRIPTOR_COUNT;
```