This is a Lenovo 21.5-inch LCD monitor, model "LI2215sD". It is marked as manufactured on October 14, 2017. There were no major problems while using it, but it is a used item and may have some scratches. Please assess the detailed condition from the photos. ☆Features☆ ● 21.5-inch wide LCD monitor supporting Full HD (1920 x 1080) and up to 16.77 million colors. ● Compatible with 100mm VESA mount standards, allowing use in homes, offices, and various other locations. ☆Specifications☆ ・Monitor size: 21.5 inches ・Surface treatment: Non-glare (matte) ・Panel type: TN ・Resolution: 1920x1080 ・Display colors: 16.77 million colors ・Color gamut: NTSC: 72% ・Response speed: 5ms ・Contrast ratio: 600:1 ・Viewing angle (up/down/left/right): 130/180 ・Maximum power consumption: 18 W ・Backlight: LED backlight ・Input terminals: D-Sub x1 ・VESA mount: ○ ・Tilt function (vertical angle adjustment): ○ ・Width x Height x Depth: 509.22 x 399.05 x 190 mm ・Weight: 3.11 kg Thank you. - Brand: Lenovo - Model: L2215d - Manufacturing year: 2017 - Voltage: 100-240VAC - Frequency: 50/60Hz - Color: Black