NEC US40a User Manual page 143

Enabling Use and Update of USB Storage Devices (Read and Write Enabled)
1.
On the [USB Storage Device Setting] dialog box, select [Enabled (E)] in [USB Storage
Device] block.
2.
Select [Write Enabled (W)] in [Access Permissions] block.
3.
Click [OK].
The [Settings Modify] dialog box appears.
4.
Click [OK].
Write Enabled
Settings Modify
Administrator Features 123