http://www.nikonchat.com/nikon-camera-d90-2/

I can use 32 GB SD card in my Nikon D90 camera?
I'm using 4 gb sd card in my day 90 now. How I wish I can now update more?
It is possible to find 32-GB SD may not work, it is mostly trial and error to see which brand will work. And why such large card? 32 GB is a lot of pictures / video. You'll find the long download times and I think if the card is damaged, lost everything Photos. Keep 4GB, but get the faster speeds SDHD Wright and the size of 4 GB is ideal to transfer to DVD without having to split the images manually. Just bought 4 or 6 of the SDHD 4GB and more secure.