RoHS stands for Restriction of Hazardous Substances. RoHS, also known as Directive 2002/95/EC, originated in the European Union and restricts the use of specific hazardous materials found in electrical and electronic products (known as EEE). All applicable products in the EU market after July 1, 2006 must pass RoHS compliance. The substances banned under RoHS are lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (CrVI), polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and four different phthalates (DEHP, BBP, BBP, DIBP). RoHS Barco MDNC-3421, 54,1 cm (21.3"), 2048 x 1536 pixels, QXGA, 3D compatibility, 20 ms, Black, Silver Barco MDNC-3421. Display diagonal: 54,1 cm (21.3"), Display resolution: 2048 x 1536 pixels, HD type: QXGA, Display technology: LCD, 3D compatibility, Response time: 20 ms, Native aspect ratio: 4:3, Viewing angle, horizontal: 178°, Viewing angle, vertical: 178°. Built-in USB hub, USB hub version: 2.0. VESA mounting, Height adjustment. Product colour: Black, Silver