Weme via Amazon offers the Alxum Mini USB 3.0 Memory Card Reader for $10.99. Coupon code "8M5XQBKG" drops it to $6.92. Plus, Prime members bag free shipping. That's $4 off and the lowest price we could find. It can read and write on two cards simultaneously and supports SD, SDHC, SDXC, MMC, TF, microSD, microSDHC, microSDXC, and UHS-I cards.