Amazon offers Prime members the Sony 32GB UHS-I Class 10 microSDHC Card, model no. SR32UY2ATQ, for $7.99 with free shipping. (Non-members can spend $49 to bag free shipping; otherwise, it adds $8.02.) That's the lowest total price we could find by $4, although we saw it for a buck less three weeks ago. It features 70 MB/s transfer speed.