Got this for my Switch. A quick Google search shows barely noticeable difference in speeds between this and the Extreme. Cost was just a bit more than the Ultra 256gb ($56) so why not pay the extra ~$6?
Was $86.59 in May, and $69 in Dec 2019 (when life was somewhat normal)
From the Amazon description
Sandisk SDSQUAR-400G-GN6MA Ultra 400GB Micro SDXC UHS-I Card with Adapter, Black
Ships from and sold by Amazon AU.
- Ideal for premium Android-based smartphones and tablets
- Transfer speeds of up to 100MB/s
- Rated A1 for faster app performance3 and UHS Speed Class 1 (U1) and Speed Class 10 for Full HD video recording and playback
- Waterproof, temperature-proof, shock-proof, X-ray proof and magnet-proof
- Transfers up to 1200 photos a minute
- 10-Year Limited Warranty
sandisk extreme pro 400gb now $89