Both the 4000D Tempered Glass Mid-Tower ATX case and the 4000D Airflow Tempered Glass Mid-Tower ATX case have a dimension of 453mm x 230mm x 466mm.
This means that a case can fit up to:
- 6x 120mm fans
- 4x 140mm fans
The 4000D cases feature wider cutouts to give you better flexibility and customization for fan placement. Use the pictures below to see where each fan can go.
120mm fan placement
140mm fan placement