Dell Precision T7400 (Late 2007) - Manual (Page 248)

248 Adding and Replacing Parts
2 Pinch the drive-panel insert release tabs and rotate the insert just enough
to free the release tabs.
1 drive panel 2 drive-panel insert
3 drive-panel insert release tabs (2) 4 drive-panel insert tab in tab slot
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2
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4
2
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