Costco - SanDisk 32GB MicroSD twin pack - $26.99

[sfx2000]

Normally these go for $32 for a single at most online or brick/mortar stores...

This is two cards for less than the price of one...

https://www.costco.com/SanDisk-Extreme-32GB-Micro-SD-2-pack-with-Adapter.product.100313265.html

I like these as they're pretty fast (90 MB/sec on read), they're non-blocking on heavy IO, and they support TRIM - work awesome on Androids and Single Board computers like the Rpi series...

Includes the SD to micoSD adapter (1 per two pack)

 

[avtella]

A single 64GB U3 version of the same model on Amazon is ~$30. I got mine (64GB) in Jan 2015 for about $42 on sale there. I got one for my father too. Definitely a great buy.

https://www.amazon.com/gp/product/B01HU3Q6S4/?tag=snbforums-20

 

[sfx2000]

Definitely a great buy.

Amazon has flash sales on SanDisk stuff from time to time...

The Costco deal - this was exceptional...

 

[sfx2000]

I've been really happy with these SanDisk Extreme cards.... the Costco deal was exceptional, but watch Amazon for gold-box/prime deals there.

I've used Kingston, Samsung (evo and pro), and the SanDisk units where the ones we needed for performance on my past project...