Don't Pay too much for a Nikon D7100 SD Memory Card
- Nathaniel Stephan
- May 28, 2025

Table of Contents
The Nikon D7100 uses SD memory cards. It can use cards with a maximum capacity of 2TB.
The camera was released in 2013. It’s still a great camera, but SD card have gotten much better since than.
Any UHS-I SD card will be fast enough. 128GB is a good size. It will be compatible with as many other devices as possible.
My Nikon D7100 Lens Recommendations
Recommended SD Cards
Any new card will be fast enough for photos and video.
Don’t pay for a super fast card. The D7100 can’t write data that fast.
Buying a UHS-II card is a waste of money. They’ll work, but the D7100 can’t use the extra speed.
Don’t buy a used card. There is no way to find out how much life is left.
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Lexar Professional 128GB

- UHS-I, U3, and V30 Speed Rating. Can sustain 30MB/s write speeds.
- Excellent choice for photos.
- Capable of recording 4k Video.
- Larger capacities are available.
SanDisk Ultra 64GB

- UHS-I, U1, and Class 10 Speed Rating. Can sustain 10MB/s write speeds.
- Excellent choice for photos.
- Capable of recording Full HD (1920x1080) Video.
- Inexpensive with more than good enough performance.
- Larger capacities are available for a reasonable price.
PNY Elite-X 128GB SD Card

- UHS-I, U3, V30, and Class 10 Speed Rating. Can sustain 30MB/s write speeds.
- Good for burst shooting photos and recording 4K video.
- Larger capacity cards are available.
- Reliable & Durable: Magnet Proof, Shock Proof, Temperature Proof, Waterproof.
SanDisk Extreme PRO 128GB

- Comparatively expensive for faster read speeds.
- UHS-I, U3, V30, and Class 10 Speed Rating. Can sustain 30MB/s write speeds.
- Only makes sense for professional use or if you need the largest storage capacity available.
- Temperature-proof, waterproof, shock-proof, and X-ray-proof.
Dual Card Slots
Do Both Memory Card Slots Need to be Used?
No, the D7100 can be used with one card.
With two cards, the following options can be used:
- Mirror the Cards. Both memory cards will have the same files written to them.
- Overflow. Once the first card is full, files will be written to the second card.
- RAW+JPEG. Raw files will be written to one card and JPEGs of the same images will be written to the second card.
Do SD Cards Need to be the Same?
No, the cards do not have to match.
Having both cards be the same helps to prevent potential problems. In particular, a slow card can slow down the camera’s buffer.
Card reader should have tails

Future proof features:
- USB-C 3.1 or 3.2
- UHS-II Compatible
- Has a Tail
It’s super annoying when a card reader blocks other ports. They can also be built-in multi-port dongles or be able to read multiple types of memory cards.
Multi-card readers can do newer memory cards like CFExpress. If you’re into older cameras, a USB 2.0 26-in-1 memory card reader might be for you.
- Memory Stick (Sony)
- xD (Olympus)
- CompactFlash (Old Nikon, Canon, Pentax)
Nikon D7100 SD Card Compatibility
The Nikon D7100 is compatible with the SD, SDHC, and SDXC standards.
Check to make sure the camera has the latest firmware.
The newest SDUC cards will not work with the D7100. They are too large.
- SD (Secure Digital) - 128MB to 2GB.
- SDHC (Secure Digital High Capacity) - 4GB to 32GB.
- SDXC (Secure Digital eXtended Capacity) - 64GB to 2TB.
- SDUC (Secure Digital Ultra Capacity) - 4TB to 128TB.
Image Capacity

Here’s the approximate image capacity for high-quality JPEGs from the 24.1 megapixel sensor:
- 32GB - 4,400
- 64GB - 8,800
- 128GB - 17,600
- 256GB - 35,200
- 256GB - 70,400
Card Speed Class

Class rating is determined by sustained write speed. The rating will be shown as a number inside of a C on the label.
For example, as card that could write data at 5MB/s would get a Class 4 rating.
Class 10 card are likely much faster than 10MB/s. That’s why there are additional ratings for high resolution video.
- Class 2 - 2MB/s
- Class 4 - 4MB/s
- Class 6 - 6MB/s
- Class 8 - 8MB/s
- Class 10 - 10MB/s or faster
Ultra High Speed Bus (UHS)

Don’t pay more for a UHS-II card. The D7100 can’t take advantage of them.
The 3 versions of Ultra High Speed bus (UHS) allow for faster read and write speeds.
The rating is shown as a Roman numeral I, II, or III on the card label.
- UHS-I - Maximum transfer rate of 104 MB/s
- UHS-II - Maximum transfer rate of 312 MB/s
- UHS-III - Maximum transfer rate of 624 MB/s
Compatible Eye-Fi Card
Eye-Fi cards are wireless SD cards that allow you to transfer your photos and videos directly from your camera to your computer or mobile device. They are compatible with many different camera models, including the Nikon D7100.
To use an Eye-Fi card with the D7100, you need to enable Eye-Fi upload in the camera’s settings. This is done by going to the setup menu and selecting “Eye-Fi upload”.
One thing to consider when using an Eye-Fi card with the D7100 is the card’s speed. If you are shooting in burst mode or recording high-resolution video, you’ll want a card that can keep up with your camera. Eye-Fi Pro X2 cards are rated Class 10 for speed and can support these types of tasks.
Remember to check the compatibility list on the Eye-Fi website to ensure that it is compatible.