In total, it can accommodate up to 10 120mm fans. Additionally, the case incorporates generous vents on the bottom, top, and right side to ensure optimal airflow for efficient cooling.
For storage, the D300 provides 1 x 2.5-inch shadow bay and 2 x 2.5/3.5-inch shadow bays, along with 5 expansion slots. The case is designed to support graphics cards up to 420mm in length, CPU coolers with a maximum height of 180mm, and power supply units with a depth of up to 200mm.
The D300 is compatible with MicroATX and Mini-ITX form factors and offers convenient I/O ports, including USB 3.2 Gen 2 Type-C x 1, USB 3.0 x 2, and an audio microphone terminal x 1. The case's dimensions are 236.4mm in width, 460.2mm in depth, and 420.9mm in height.
For more information and specifications, you can visit the official product pages: