Apparently the Extreme is GoPro certified. I notice it is a common question in these MicroSD card deals.
Extreme sports require extreme readiness. SanDisk Extreme microSDHC/microSDXC UHS-I cards deliver the speed, capacity, durability, and quality you need to make sure your adventure is captured in stunning detail, even if you blink on the way down. Now rated UHS Speed Class 3 (U3)**, this fast, high-performing card teams up with your action camera to let you capture and share unforgettable extreme sports video.
Form factor: microSDHC (32 GB),
Available capacity: 32 GB
Performance/speed: Up to 45/45MB/s read/write speed 32 GB
Card dimensions: 0.59 in x.43in x.04in (15 mm x 11 mm x 1.0 mm)
Operating temperature: -13ºF to 185ºF (-25ºC to 85 ºC)
Storage temperature: -40ºF to 185ºF (-40ºC to 85ºC)
Compatibility: Compatible with all microSDHC, microSDXC, microSDHC UHS-I, and microSDXC UHS-I supporting host devices
RescuePro® Deluxe data recovery software downloadable offer
Support: Lifetime limited warranty
Max quantity: 2 per person.
Sandisk Ultra microSD
Features
Class 10 Speed Rating for Seamless Full HD Video
The SanDisk Ultra UHS-I card features a Class 10 and UHS Speed Class 1 (U1) rating, the highest video performance available for recording uninterrupted Full HD** video.
Flawless App Performance
This card can retrieve stored data almost instantly, thanks to its up to 30MB/s read capability and fast bus interface. TheSanDisk Ultra microSDHC and microSDXC UHS-I cards offer faster app loading and smoother, more fluid app performance.
Android App for Easy File Management
The included SanDisk Memory Zone app** lets you easily view, access, and backup all of your digital files from your phone's memory, additional memory card, and cloud service all in one convenient place. Using the app, you can easily move files from your card to a number of cloud storage services.
Durable Design
SanDisk Ultra UHS-I memory cards can capture memories from -13 to 185 degrees Fahrenheit with a shockproof, waterproof, and X-ray-proof design. Your mobile device may not survive, but your SanDisk memory card will.
I should have combined them to start with. My apologies.