You have your choice of that keyboard or the wired keyboard with the numeric keypad. They're both the same cost.
Not from John Lewis dot com, it comes with a little wireless keyboard, no option. Extended wired costs another £40 or so.
No matter, I'll be using the extended-wired k/bs which are already in use, on the Macs about to be taken out of production.
Having said that however, next post........
