1. The 3.5-inch computer secondary screen only requires a USB-C connection. It functions as a USB serial port device rather than a standalone display, so it does not affect GPU usage or allow the mouse cursor to extend to the secondary screen. 2. All settings are managed through the included software, which allows for customization. The software primarily uses CPU resources and has minimal impact on GPU performance, making it suitable for gaming environments. 3. When installing inside a chassis, you may use an adapter cable or a 9-pin USB adapter board. If the internal 9-pin USB port is occupied, a one-to-two expansion pin can be used. 4. Compatible with Windows 10 and later operating systems. Windows 7 requires additional driver installation. 5. No external power supply is needed; the device is powered solely through a USB data cable. Display Area: Approximately 49x74mm Overall Size: Approximately 55x85mm Resolution: 320x480 Thickness: 78mm Viewing Angle: IPS full viewing angle Interface: USB Type-C Material: Metal Color: White Package Contents: 1 x Secondary Screen Chassis 1 x Elbow Cable 1 x Chassis Cable 1 x Connecting Cable 1 x Bracket 1 x Anti-Slip Sticker Note: Product appearance, color, and printed characters may vary between batches, but these differences do not affect functionality. The package includes only the items listed above; other products are not included. Note: Lighting conditions and monitor settings may cause slight color variations between the image and the actual item. Measurement error is +/- 13 cm.