The Rosewill Stealth gaming case gives you more. The top panel offers a docking connector for your internal HDD, as well as two fan speed controllers for fan speed adjustment. You"ll have the freedom to use an airflow cooling solution, liquid cooling solution, or hybrid cooling solution. HDD installation will be as easy as pie. Just slide the HDD trays to install your 3.5"/2.5" HDDs/SDDs; no adapter is required. The internal HDD will not be limited to being installed on the HDD tray. The Rosewill Stealth gaming case has a docking connector on the top for your internal HDD. Thanks to the ramped slot, your internal HDD will securely stay on the top of your case. Use your internal HDD as an external HDD without the need to purchase an extra HDD enclosure!