NEC DiamondScan HA3905 ADK is a high-quality color display monitor compatible with IBM personal system/2 and various personal computers. It offers a range of features for a customizable and enjoyable user experience.

The monitor boasts automatic tracking and synchronization over a wide range of horizontal (15.7-35.5 kHz) and vertical (50—87 Hz) scanning frequencies, ensuring compatibility with different input sources.

With its shrinked D-SUB 15P connector or BNC connector, the HA3905 ADK supports various input signals, including RGB separate, RGB R'GB” TTL separate, and RGB analog signals, providing flexibility for connecting to different devices.