SMART Technologies SB640, 48", 38.4 x 28.7" (975 x 730 mm), 4000 x 4000 pixels, Resistive, USB, White SMART Technologies SB640. Display diagonal: 48", Working area: 38.4 x 28.7" (975 x 730 mm), Display resolution: 4000 x 4000 pixels. Interface: USB. Product color: White, Certification: CSA (U.S./Canada), CE, CB (TUV), China EIP, EU RoHS, WEEE, VCCI. Power consumption (typical): 1.5 W, DC input voltage: 5 V, Power consumption: 300 mA. Required software: SMART Notebook