The vast majority of Ultrabooks ship without an optical drive, Ultra-thin laptops are great. They're light, super portable, and can handle almost any modern task you throw at them. They don't come with DVD drives inside, but the fact of the matter is that most of us rarely use disc drives these days, since online stores like iTunes,Amazon and Netflix provide us with most of our media online.
You have the option to use an external USB CD drive or a USB stick You can connect an external USB optical drive to allow for using DVD and Blu-Ray media.
if you still wish to install a internal DVd drive, you may installed the below mentioned DVD drive withpart number :
KO.00807.010 Super-Multi DRIVE PANASONIC Super-Multi DRIVE 9.0mm Tray 8X UJ8D2QBAA2-B LF W/O bezel SATA
KO.0080D.009 Super-Multi DRIVE HLDS HITACHI EAST Super-Multi DRIVE 9.0mm Tray 8X GU71N LF W/O bezel SATA
If you need a ODD bracket and Bezel to install it, the part number are
ODD BRACKET 33 33.M8EN2.003
ODD BEZEL-SM 42.M8EN2.002
Note: While I am an Acer employee or contracted employee, my contributions to Acer Community are my own and not representative of Acer or its views.