The 64GB Silicon Power SDXC C10 UHS-1 Elite Memory Card (up to 85MB/s, model SP064GBSDXAU1V10) is on sale for $23 with free shipping with no purchase quantity limit, sold by the maker with the order fufilled by Amazon. It averages 4.6 out of 5 with 214 customer reviews with mostly 5-star, 4-star and 1-star reviews.
The 64GB Silicon Power MicroSDXC UHS-1 Class 10 card (up to 85MB/s) with full-size SD Adaptor, model SP064GBSTXBU1V20SP, is currently on sale for $22 each at Amazon by Amazon herself with a limit of five per customer. It averages 4.7 out of 5 with 76 customer reviews but interestingly it mostly has 5-star, 4-star and 1-star reviews. This is not a lightning deal.
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