The display and sound effects Screen size:

21.5 inches to 32 inches is common, and it is recommended to give consideration to visual field and portability above 23.8 inches. Resolution: 1080p(1920×1080), 2K(2560×1440) and 4K(3840×2160). High resolution is suitable for fine design. Panel type: IPS (good color, wide viewing angle), VA (high contrast), TN (fast response), IPS is preferred. Sound effect: Built-in speaker power (such as 2×5W), some models support dolby pro logic.

The interface and extension Necessary interfaces:

USB(Type-C/3.2/2.0), HDMI (Output/Input), RJ45 network port and audio jack. Expansion interface: VGA (compatible with some old devices), SD card slot, serial port (required by industrial scenes). Fourth, other key parameters Heat dissipation: pay attention to heat dissipation methods (such as passive heat dissipation without fans and active heat dissipation with dual fans) to avoid overheating after long-term use. System pre-installation: Most of them are pre-installed with Windows 10/11, and some support Linux or customized systems. Certification and after-sales: 3C certification, energy-saving certification (such as 80PLUS) and warranty policy (1 years on-site service). Query suggestion: 1. Enter the model number through the brand official website to inquire about the detailed parameters (such as Lenovo, Dell and HP official website). 2. Use third-party platforms (such as Zhongguancun Online, what is worth buying) to compare the configurations of different models. 3. Refer to professional evaluation (such as Master Lu's running score and 3DMark test) to verify the performance data.