microsoft key

At least one listing describes an integrated slot that stores and charges a slim pen; the slim pen is not included.

Dimensions vary by listing: height 0.21–0.35 in, width 11.18–11.38 in, depth 4.36–8.71 in; weight 0.64–0.75 lb.

Yes—both product details indicate backlit keyboards, and one listing specifically mentions backlit mechanical keys.