Your Favorite Accessory for SP4?

[pwscott]

here have been so few new threads here, I thought I'd open a few....so wondering what you favorite accessory you've bought for your Surface Pro 4 is so far? PLEASE INCLUDE A LINK to the item that's your favorite...

I've bought a few...the Surface Blue Pen with tips, the Black Keyboard/Cover with Fingerprint reader, but my favorite is:

The Brenthaven BX2 Edge Case for Surface Pro 4

It's a protective edge cover for the Surface Pro 4 that protects from drops and other damage. It holds the keyboard/screen cover in place during a drop....it allows full use (and protection) of the kickstand. It allows access to all the ports easily and has a place to clip your pen on and an optional pen tether cord.
$69.95 on Amazon via Prime. Well worth it to protect your Surface Pro. Also doesn't add much weight.
So what's your favorite accessory (with URL links please).

 

[kristalsoldier]

My critical accessories are the Type Cover and the Surface Dock!

Edit: And the Pen!!!

 

[sgs]

Nice review and recommendation on this case. Helpful! ...thanks.

 

[Blake Seaman]

I love that case, but the pen attachment method is a pretty flimsy afterthought.