These are light to moderately used Computer Monitors. ACER SB220Q 21.5inch Widescreen Monitor Display Full HD (1920 x 1080)

Acer SB220Q 21.5inch Widescreen Monitor Display Full HD (1920 x 1080) 75Hz

ACER SB220Q SPECS
Panel Size (Corner-to-Corner)    21.5 inches
Native Resolution    1920 by 1080
Aspect Ratio    16:9
Screen Technology    IPS
Rated Screen Luminance    250 nits
Rated Contrast Ratio    1000:1
Pixel Refresh Rate    75 Hz
Adaptive Sync    AMD FreeSync
Video Inputs    HDMI, VGA
USB Ports (Excluding Upstream)   
VESA DisplayHDR Level    NA
Dimensions (HWD)    15.1 by 19.6 by 8.3 inches
Weight    5.5 lbs
Height-Adjustable Stand NO   
Tilting Stand YES   
Swiveling Stand NO   
Landscape/Portrait Pivot    NO