Amazon has the SanDisk 400GB Ultra microSDXC UHS-I Memory Card with Adapter for $49.99 plus tax (if you must) plus free shipping (if you're Prime).
I've been using one of these in one of my cell phones and now need to get another one for my other cell phone. I've had no problems using it for storage in the phone.
Some might argue that this card isn't as fast as the newer 400GB card SanDisk, and they'd be correct. But the 20% increase in speed isn't worth the 20% increase in cost to me.
Also, when checking out, Amazon offered me a $15 discount on the purchase of $50 or more if I used Chase Rewards points (any amount - I used just $1 worth to see if I still got the $15 discount and I did). So I purchased a $0.99 copy of the US Constitution as a filler and was GTG.
Now this price isn't as good as some recent deals on the same card, but it's only ~$5 more than the all-time low price CCC shows. So if you need it now, now might be a good time to buy this one. Oh, and yes, it's shipped and sold by Amazon with free returns.