The Nikon D80 camera is compatible with SD memory cards.
The Nikon D3100 camera is compatible with SD, SDHC, and SDXC memory cards.
The Nikon D40x camera is compatible with SD (Secure Digital) memory cards.
The Nikon D60 camera is compatible with SD (Secure Digital) memory cards.
The Nikon D5500 camera is compatible with SD memory cards.
The Nikon D80 camera is compatible with SD memory cards.
The Nikon D3100 camera is compatible with SD, SDHC, and SDXC memory cards.
The Nikon D40x camera is compatible with SD (Secure Digital) memory cards.
The Nikon D60 camera is compatible with SD (Secure Digital) memory cards.
The Nikon D5500 camera is compatible with SD memory cards.
The Nikon D3100 camera is compatible with SD (Secure Digital) memory cards.
The Nikon D40 camera is compatible with SD (Secure Digital) memory cards.
The Nikon D7000 camera is compatible with SD (Secure Digital) memory cards.
The Nikon D80 camera is compatible with Secure Digital (SD) memory cards.
The Nikon D7000 is compatible with SD (Secure Digital) memory cards.
Nikon specifically states that the D50 can only accommodate up to a 2GB SD card. However, some users find they can use the 4GB card with their D50s (see Resources). Although not guaranteed, use only SDSC and not SDHC (High-Capacity) cards.
A Nikon camera may not be able to use a specific memory card if the card is not compatible with the camera's memory card slot. Different cameras require specific types of memory cards, such as SD, CF, or XQD cards, and using an incompatible card can result in errors or the card not being recognized by the camera.