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I'm looking for a 3U or 4U rack mount PC case that can accommodate a full-sized GPU and an ATX motherboard. The GPU dimensions are approximately 318.5mm in length, 140.1mm in width, and 57.78mm in height. It's essential that the case provides enough space and airflow for these components since they can generate considerable heat during operation. Additionally, the motherboard I intend to use has standard ATX dimensions of 30.5cm by 24.4cm. It would be great if you could provide information on your available models that meet these requirements. Please include details about the material, cooling options, and any other relevant features that would enhance the case's performance and durability. Looking forward to your suggestions!