Adorama offers the Patriot 16GB LX Pro Series UHS-I Class 10 microSDHC Flash Card 3-Pack, model no. PSF16GMCSHC10BK, for $22.98. This $6.99 mail-rebate cuts the price to $15.99. With free shipping, that's $5.33 per card and the lowest total price we could find for this quantity by $17, although we saw a 2-pack for $10 three weeks ago. Each card features read speeds up to 40MB/s, write speeds up to 20MB/s, and a write protection switch. Rebate ends October 5.