This Apple Keyboard was introduced in 2007 and featured an all-aluminum enclosure with flat white keys, similar to laptop keys of the time. The keyboard includes two USB 2.0 ports on the right and left back of the keyboard. This same keyboard was later renamed the Apple Keyboard with Numeric Keypad in 2009.
There are two versions of this keyboard (MB110LL/A and MB110LL/B). The difference between the versions is due to the icons printed on the F3 and F4 keys to correspond with the release of Mac OS X Lion when the F3 key icon changed from Exposé to Mission Control, and the F4 key icon changed from Dashboard to Launchpad. This keyboard is the original MB110LL/A version.
This was the first Apple keyboard in nearly 30 years to remove the Apple logo that had been previously printed on the Command key (⌘).
As of 2020 Apple has released approximately 20 external keyboard designs. In general, Apple Macintosh keyboards are different from standard keyboards because they include a Command key (⌘) for shortcuts; an Option key (⌥) for entering diacritical marks and special characters; and a Help or fn (function) key. Earlier Apple keyboards also included a power key (◁), while newer keyboards include eject (⏏).
Source: Wikipedia