Amazon offers Prime members the Kensington KeyCover Hard Case Backlit Keyboard for iPad Air, model no. K97087US, for $19.99 with free shipping. (Non-members can spend $35 or more to bag free shipping; otherwise, it adds $8.77.) That's the lowest total price we could find by $39, although we saw it for $7 less a month ago. It features quick release rubber corners, automatic wake and sleep modes, and magnetic well.