New Delhi, January 9 (ANI): Laptop maker Acer has unveiled the world's thinnest laptop computer in the series of "ultrabook". The device measures 15mm at its maximal point and weighs only 1.35 Kgs. It has what Acer describes as a 'delicately curved chassis' which comes in "onyx black". The Acer Aspire 5 models, whose prices are yet to be disclosed, would be shipped in the second quarter of this year. The laptop comes with a 13.3in LCD screen and a motorised Magicflip panel that opens to reveal HDMI, USB 3.0 and Thunderbolt ports.