SMART Technologies M680, 77", 61.6 x 46.3" (1565 x 1175 mm), Multi-touch, USB, Gray, White, 70.9" (1.8 m) SMART Technologies M680. Display diagonal: 77", Working area: 61.6 x 46.3" (1565 x 1175 mm), Touch technology: Multi-touch. Interface: USB. Product color: Gray, White, Power cable length: 70.9" (1.8 m), Certification: CSA, EIP, REACH, RoHS, WEEE, ErP. Power consumption (typical): 7 W, AC input voltage: 100-240 V, AC input frequency: 50 - 60 Hz. Mac operating systems supported: Mac OS X 10.6 Snow Leopard