ASUS VK221D computer monitor vs ASUS VK221S computer monitor

Comparison of VK221D, VK221S

29 specifications	A ASUS VK221D computer monitor Model VK221D View product	B ASUS VK221S computer monitor Model VK221S View product
Displayidentical
Display diagonal	54.9 cm (21.6")	54.9 cm (21.6")
Display resolution	1680 x 1050 pixels	1680 x 1050 pixels
Touchscreen	No	No
Display brightness (typical)	300 cd/m²	300 cd/m²
Response time	5 ms	5 ms
Contrast ratio (typical)	4000:1	4000:1
Viewing angle, horizontal	170°	170°
Viewing angle, vertical	160°	160°
Pixel pitch	0.277 x 0.277 mm	0.277 x 0.277 mm
Horizontal scan range	30 - 82 kHz	30 - 82 kHz
Vertical scan range	56 - 76 Hz	56 - 76 Hz
Multimediaidentical
RMS rated powerKnown for one	—Unknown — not stated by the source	2 W
Designidentical
Product colour	Black	Black
Ports & interfacesidentical
VGA (D-Sub) ports quantityKnown for one	—Unknown — not stated by the source	1
PC Audio inKnown for one	—Unknown — not stated by the source	Yes
DVI-D ports quantityKnown for one	1	—Unknown — not stated by the source
Ergonomicsidentical
Panel mounting interface	100 x 100 mm	100 x 100 mm
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Poweridentical
Power consumption (typical)	55 W	55 W
Power consumption (standby)	2 W	2 W
Weight & dimensionsidentical
Width (with stand)	507 mm	507 mm
Depth (with stand)	210 mm	210 mm
Height (with stand)	395 mm	395 mm
Weight (with stand)	5.1 kg	5.1 kg
Packaging dataidentical
Package dimensions (WxDxH)	590 x 140 x 454 mm	590 x 140 x 454 mm
Package weight	7.1 kg	7.1 kg
Sustainabilityidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
Other featuresidentical
Certification	CB, FCC, CCC, CSA, VCCI, PSB, BSMI, Gost-R, C-Tick, WEEE, WHQL	CB, FCC, CCC, CSA, VCCI, PSB, BSMI, Gost-R, C-Tick, WEEE, WHQL

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.