Samsung Electronics unveiled three notebooks under its 9 series product line: the 13-inch 900X3L, 15-inch 900X5L and 13-inch 940X3L, at Samsung China Forum in Shanghai, eastern China, on March 2, marking its reentry into the global notebook market.

The 900X3L is 13.45mm thick and weighs 840g, and it features a backlight keyboard that is able to adjust its brightness automatically. The machine is also equipped with a rotatable display.

The 900X5L weighs 1,290g with a 6.2mm thin-bezel design. The 940X3L is pre-loaded with Windows 10 and has a thickness of 14.9mm, weighs 1,300g and is also equipped with a rotatable display.

The three notebooks support Samsung's Security CAM function. If a user types in the wrong password, the notebook camera will take a photo of the user and send it to the pre-set e-mail.