S1200SP uses M.2 2242 drive when no one makes them?

Hi

I notice the S1200SP series of board (http://www.intel.com/content/www/us/en/motherboards/server-motherboards/server-board-s1200sp.html) has a M.2 drive support for 2242, no one makes this size, even Intel doesnt, so what was the point?

Everything i can find that i would use (Intel, Kingston etc..) are 2280 in size!

Many Thanks