iPad Air 2 Keyboard Case
For users who want to be more productive, the Belkin QODE Ultimate Pro Keyboard Case for iPad Air 2 is a nice option. It's not cheap, but it includes full protection and a keybaord that supports typing in landscape or portrait orientation.
This iPad Air 2 keyboard case is available in black and white color options, includes a backlit keyboard and includes a case that protects when you don't need the keyboard. This keyboard also pairs to a second device like an iPhone or a Mac.
$149 from Belkin