Sandisk Ultra 30MB/s 4GB Brand new, sealed in a blister pack. Around 10 years ago, large-capacity CF cards weren't anticipated for Nikon and Canon DSLRs, so a 4GB size might be a good fit. This model, in particular, seems to be praised for its stability in older DSLRs. Many people on this Amazon CF sales site have commented that this product is compatible with older Nikon and Canon DSLRs. Please take a look. Also, check the Amazon price for reference. You'll be surprised.