While the build quality isn't as good as Apple's, this keyboard is the closest replacement for the old wired Apple Extended Keyboard. It includes a 2-port USB hub. All keys are identical in function and position to the Apple equivalent (which isn't available anymore) including F1 to F19.

This was bought as a replacement for the original full sized Mac wired keyboard with number pad, which I need for work. Works fine but the key feel is not as nice as the original Mac, but acceptable.

Cosmetically identical to iMac keyboard, wth a couple minor irritations. Pressing a key will not wake the iMac from sleep, so click the mouse instead, and the boot-up key combinations to not work as expected. As a alpha-numeric full keyboard though, I am very happy with it. It has a similar touch to the original iMac keyboard, and is a good replacement as Apple no longer supply wired keyboards (just bluetooth versions). All other functions such as the function keys and key combinations work as expected. I would buy another Matias should the need arise. I have used the keyboard for about a month.