16GB CF FLCARD OPTIMA PRO 133W READ / 20MB WRITE PNY's Optima Pro CompactFlash cards perform at a substantially higher sustained write speed than standard CompactFlash cards. The result? Reduced click-to-click time so you won't miss any of the action! PNY Optima Pro cards are expressly created for high-end digital SLR cameras that can maximize their performance with this improved technology. Let PNY Optima Pro CompactFlash help you get the most out of your equipment.