SD Card Checker Logo SD Card Checker
Sony A7R SD card requirements

Best SD Card for Sony A7R

Expert recommendations based on Sony A7R specifications

Recommended Spec

SD UHS-I (Class 10 / U1 or faster)

The original A7R records 1080p only and has one SD slot. Any Class 10 or U1 card from a known brand is enough.

Official Sony A7R SD Card Requirements

  • Format: SD UHS-I
  • Minimum Speed: Class 10 / U1 (10 MB/s write)
  • Maximum Capacity: No official limit (SDXC up to 2TB standard)
Why these requirements? The original 36MP A7R records only Full HD (AVCHD/MP4) video and does not offer 4K or very high bit-rate codecs. As a result, its media demands are modest by modern standards: any reputable Class 10 / U1 SDHC or SDXC card is fast enough for both stills and movie recording. Choosing a higher-end UHS-I card with better write speeds mainly improves how quickly long RAW bursts clear from the buffer and how fast files copy to your computer, rather than unlocking new shooting modes.

Detailed Specifications

Type
SD UHS-I
Min Speed Class
Class 10 / U1
Write Speed
10 MB/s
Recommended Size
64GB, 128GB, 256GB
Max Capacity
No official limit (SDXC up to 2TB standard)

Top SD Card Recommendations

This website contains affiliate links. We may earn a small commission when you purchase through our links at no extra cost to you.

SD Card Verified Speed Class Write Speed Pros Price
SanDisk Extreme PRO SD UHS-I V30 SD card - 100USD
SanDisk Extreme PRO SD UHS-I
 Full Review 		V30 Up to 120 MB/s
  • Among the fastest UHS-I SD cards
  • with V30 and fast buffer clearing.
 $$ Check Price
Lexar Professional 633x SD (Blue Series) V30 SD card - 20USD
Lexar Professional 633x SD (Blue Series)
 Full Review 		V30 Up to 45 MB/s
  • Budget V30 SD card.
 $ Check Price
Kingston Canvas Go! Plus SD V30 SD card - 45USD
Kingston Canvas Go! Plus SD
 		V30 Up to 90 MB/s
  • Fast UHS-I SD card with 90 MB/s writes.
 $ Check Price

Compare These Cards

Open in full compare tool

See how the recommended cards for Sony A7R stack up side by side, or swap in any other card.

recommended
SanDisk Extreme PRO SD UHS-I

SanDisk Extreme PRO SD UHS-I

 $$ · Premium
  • UHS RatingUHS-I
  • Speed ClassV30
  • App PerformanceN/A
  • Read SpeedUp to 250 MB/s
  • Write SpeedUp to 120 MB/s
  • EnduranceStandard
Available Capacities64GB, 128GB, 256GB, 512GB, 1024GB

Pros

  • Among the fastest UHS-I SD cards
  • with V30 and fast buffer clearing.

Cons

  • Costs more than the SanDisk Extreme.
View on Amazon
budget
Lexar Professional 633x SD (Blue Series)

Lexar Professional 633x SD (Blue Series)

 $ · Budget
  • UHS RatingUHS-I
  • Speed ClassV30
  • App PerformanceN/A
  • Read SpeedUp to 95 MB/s
  • Write SpeedUp to 45 MB/s
  • EnduranceStandard
Available Capacities32GB, 64GB, 128GB, 256GB, 512GB

Pros

  • Budget V30 SD card.

Cons

  • Slower than Lexar Silver and Gold.
View on Amazon
recommended
Kingston Canvas Go! Plus SD

Kingston Canvas Go! Plus SD

 $ · Mid-Range
  • UHS RatingUHS-I
  • Speed ClassV30
  • App PerformanceN/A
  • Read SpeedUp to 170 MB/s
  • Write SpeedUp to 90 MB/s
  • EnduranceStandard
Available Capacities64GB, 128GB, 256GB, 512GB

Pros

  • Fast UHS-I SD card with 90 MB/s writes.

Cons

  • Easy to confuse with Kingston's Canvas React line.
View on Amazon

SanDisk Extreme PRO SD UHS-I

The SanDisk Extreme PRO SD UHS-I reads up to 200 MB/s with a SanDisk reader and carries a V30 rating. It covers 4K in most UHS-I cameras and clears bursts faster than the SanDisk Extreme.

Target User: Professional photographers and videographers, content creators requiring fast storage
Best For: Mirrorless Cameras, DSLR Cameras, Smartphones & Tablets

Choose SanDisk Extreme PRO over the standard Extreme for enhanced write performance and V30 speed class guarantee. The Extreme PRO also outperforms the other premium storage options in terms of read/write speeds.

Lexar Professional 633x SD (Blue Series)

The Lexar Professional 633x SD is a budget V30 card that reads up to 95 MB/s and writes up to 45 MB/s. It covers 1080p and 4K up to about 100 Mbps.

Target User: Hobbyists, amateur filmmakers, and professionals on a budget
Best For: Mirrrorless Cameras, DSLR Cameras, Smartphones & Tablets

Consider this option over more expensive alternatives when seeking a budget-friendly solution with reliable performance. In comparison to some entry-level options, this card is a significant step up, but may not keep pace with more high-end alternatives. However, for those on a tight budget, it's a great way to avoid overspending on SD card capacity and speed.

Frequently Asked Questions

What SD Card Do I Need for Sony A7R?
The Sony A7R takes a SD UHS-I card rated Class 10 / U1 or faster. 64GB or 128GB or 256GB covers most owners, and the maximum is No official limit (SDXC up to 2TB standard). Buy SanDisk, Lexar, Samsung or Kingston from a reputable seller: counterfeit cards are the most common cause of lost files.
Can the Sony A7R use UHS-II SD cards?
Yes, but only at UHS-I speeds. The A7R's card slot understands standard SD/SDHC/SDXC media and does not take advantage of the extra UHS-II contacts, so a UHS-II card behaves like a fast UHS-I card in this body. It will still work, but you will not see the headline UHS-II transfer rates.
Is a V30 card necessary for the A7R?
No, V30 cards are not required for this camera. The A7R's 1080p recording bitrates are easily handled by basic Class 10 / U1 cards. V30 cards are still a fine choice if you want to reuse them with newer, more demanding cameras later, but they are not a technical requirement here.
What SD card capacity is reasonable for the A7R?
Because 36MP RAW files are relatively large, 64GB or 128GB cards strike a good balance. A 32GB card can fill quickly during a full day of shooting, whereas 64GB+ gives more headroom while still keeping backup and offload times manageable.
Is Class 10 / U1 required for Sony A7R?
Yes. Class 10 / U1 guarantees 10 MB/s of sustained write, which keeps the Sony A7R free of dropped frames, clips that stop early, or corrupted files. Faster cards work too.
What size SD card should I get for Sony A7R?
64GB covers light use; 256GB suits heavy use. Maximum capacity: No official limit (SDXC up to 2TB standard).
Can I use older or slower cards with Sony A7R?
Not below Class 10 / U1. Slower cards cause dropped frames, clips that stop early, or corrupted files. Check the card label for the Class 10 / U1 mark.
Is a UHS-II card faster in Sony A7R?
No. The Sony A7R has a UHS-I slot, so a UHS-II card runs at UHS-I speed. It only offloads faster in a UHS-II card reader.
Does the brand matter for Sony A7R?
Yes. SanDisk, Lexar, Samsung and Kingston cards meet their rated speeds. Buy from the brand's store or a major retailer: counterfeit cards sold under those names are common on marketplaces.
What happens if I use the wrong card with Sony A7R?
A card slower than Class 10 / U1 causes dropped frames, clips that stop early, or corrupted files. A card over the maximum capacity or in the wrong format may not be recognized.
How long will an SD card last in Sony A7R?
Several years in normal use. Cards usually fail from wear or counterfeit flash, not age. Replace yours at the first write error, corrupted file or "card not recognized" message.

Related

Best SD Cards For Sony a7 III
Best SD Cards For Sony A7 IV