Dane-Elec 4GB Class 4 SDHC Memory Card Dane-Elec 4 GB Class 4 SDHC Memory Card General Features: 4 GB capacity Secure Digital High Capacity (SDHC) form factor (not backwards compatible with SD) Class 4 speed rating (4.0 MB/s) Write-protection switch Plug and play Holds up to 1,597 6-megapixel photos and 1,008 10-megapixel photos (approximate)