Best SD Cards For Sony A7 IV
Expert recommendations based on Sony a1 II specifications
Recommended Spec
Dual slots: CFexpress Type A or SD UHS-II (V90 (SD), VPG400 (CFexpress) or faster)
Both a1 II slots take CFexpress Type A or SD UHS-II. Use CFexpress Type A for 8K and 30 fps RAW bursts, and V90 SD cards for 4K.
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#1 Top Pick for Sony a1 II
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Official Sony a1 II SD Card Requirements
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Format: Dual slots: CFexpress Type A or SD UHS-II
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Minimum Speed: V90 (SD), VPG400 (CFexpress) (90 MB/s (SD), 400+ MB/s sustained (CFexpress Type A) write)
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Maximum Capacity: No official limit
Why these requirements? Sony's flagship 50MP stacked-sensor body shoots 8K/30p and 4K/120p with very high burst rates. Both slots accept CFexpress Type A or SD UHS-II, so CFexpress Type A is recommended as primary for clearing the buffer during 30fps RAW bursts and 8K recording, while a V90 SD card is the right call for the second slot when running dual-slot backup or overflow.
Detailed Specifications
Type
Dual slots: CFexpress Type A or SD UHS-II
Min Speed Class
V90 (SD), VPG400 (CFexpress)
Write Speed
90 MB/s (SD), 400+ MB/s sustained (CFexpress Type A)
Recommended Size
256GB, 512GB
Max Capacity
No official limit
Top SD Card Recommendations
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| SD Card | Verified | Speed Class | Write Speed | Pros | Price |
|---|---|---|---|---|---|
SanDisk Extreme PRO CFexpress Type A
Full Review
|
VPG-400 | Up to 700 MB/s |
|
$$ Check Price | |
Sony TOUGH G-Series SD
Full Review
|
V90 | Up to 299 MB/s |
|
$$ Check Price | |
Kingston Canvas React Plus SD
Full Review
|
V90 | Up to 260 MB/s |
|
$ Check Price |
Compare These Cards
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SanDisk Extreme PRO CFexpress Type A
$$ · Premium- UHS RatingNone
- Speed ClassVPG-400
- App PerformanceN/A
- Read SpeedUp to 800 MB/s
- Write SpeedUp to 700 MB/s
- EnduranceStandard
Available Capacities80GB, 160GB, 320GB
Pros
- Handles every recording mode on Sony bodies with Type A slots
- including 4K120 All-Intra.
Cons
- Expensive per GB.
professional
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Sony TOUGH G-Series SD
$$ · Premium- UHS RatingUHS-II
- Speed ClassV90
- App PerformanceN/A
- Read SpeedUp to 300 MB/s
- Write SpeedUp to 299 MB/s
- EnduranceStandard
Available Capacities32GB, 64GB, 128GB
Pros
- One-piece molded body rated for drops
- water and bending. Writes up to 299 MB/s.
Cons
- Expensive.
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Kingston Canvas React Plus SD
$ · Mid-Range- UHS RatingUHS-II
- Speed ClassV90
- App PerformanceN/A
- Read SpeedUp to 300 MB/s
- Write SpeedUp to 260 MB/s
- EnduranceStandard
Available Capacities32GB, 64GB, 128GB, 256GB
Pros
- V90 UHS-II card at a lower price than Sony and SanDisk V90 cards.
Cons
- Harder to find in stores.
SanDisk Extreme PRO CFexpress Type A
The SanDisk Extreme PRO CFexpress Type A reads up to 800 MB/s and writes up to 700 MB/s. It fits the combo slots in Sony bodies such as the A7 IV, A7S III, FX3, FX30 and A1, and handles their All-Intra and 4K120 modes.
Target User:
Professional videographers and photographers, content creators
Best For:
CFexpress Type A Cameras, Mirrorless Cameras, 8K Cameras
Choose SanDisk Extreme PRO CFexpress Type A over competing cards for its superior write speeds and rugged design, making it the best choice for those requiring a balance of performance and durability.
Sony TOUGH G-Series SD
The Sony TOUGH G-Series is a V90 UHS-II SD card that reads up to 300 MB/s and writes up to 299 MB/s. Its one-piece molded body has no ribs or write-protect switch to break, and it is rated for drops, water and bending.
Target User:
High-end camera users and professionals in rugged environments
Best For:
Mirrorless Cameras, DSLR Cameras, Action Cameras
For users looking for a more budget-friendly option, consider the Lexar Professional SD card or the Delkin Devices Power SD card, which offer similar performance but at a lower price point.
Kingston Canvas React Plus SD
The Kingston Canvas React Plus SD delivers high-speed performance at an affordable price, making it an excellent choice for professionals who require reliable data transfer and recording, but also value budget-friendly options.
Target User:
Mobile videographers, photographers, and content creators
Best For:
Action Cameras, Drones, Smartphones & Tablets, Mirrorless Cameras
Consider Kingston Canvas React Plus over other mid-range V90 cards in its class, offering comparable performance without the premium price tag.
Featured Products on Amazon
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Kingston Canvas Go Plus 128GB microSD Card | Up to 200MB/s | Class 10, UHS-I, U3, V30, A2 | SDCG4/128GB
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Kingston 128GB Canvas Select Plus microSD Card | Up to 150MB/s | Class 10, UHS-I, U1, V10, A1 | SDCS3/128GB
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Frequently Asked Questions
What SD Card Do I Need for Sony a1 II?
The Sony a1 II takes a Dual slots: CFexpress Type A or SD UHS-II card rated V90 (SD), VPG400 (CFexpress) or faster. 256GB or 512GB covers most owners, and the maximum is No official limit. Buy SanDisk, Lexar, Samsung or Kingston from a reputable seller: counterfeit cards are the most common cause of lost files.
Do I need CFexpress Type A, or is SD enough for the a1 II?
For 8K video and the fastest 30fps RAW bursts, CFexpress Type A is strongly recommended to clear the buffer quickly. For 4K video and standard photography, a V90 SD UHS-II card is perfectly sufficient, making SD a cost-effective choice if you don't shoot 8K regularly.
Can I mix CFexpress Type A and SD cards across the two slots?
Yes, both slots on the a1 II accept either card type independently. A common setup is CFexpress Type A in Slot 1 for primary recording and a V90 SD card in Slot 2 for backup or overflow, balancing performance with cost since CFexpress media is significantly more expensive per gigabyte.
Is V60 enough for the a1 II?
No, Sony specifies V90 as the minimum SD speed class for the a1 II's high-bitrate 4K and 8K modes. V60 cards may cause dropped frames or recording stoppages during demanding bursts or high frame-rate video, so V90 is the safe baseline for SD media in this body.
Is V90 required for Sony a1 II?
Yes. V90 guarantees 90 MB/s (SD), 400+ MB/s sustained (CFexpress Type A) of sustained write, which keeps the Sony a1 II free of dropped frames, clips that stop early, or corrupted files. Faster cards work too.
What size SD card should I get for Sony a1 II?
256GB covers light use; 512GB suits heavy use. Maximum capacity: No official limit.
Can I use older or slower cards with Sony a1 II?
Not below V90 (SD), VPG400 (CFexpress). Slower cards cause dropped frames, clips that stop early, or corrupted files. Check the card label for the V90 (SD), VPG400 (CFexpress) mark.
Do I need a UHS-II card for Sony a1 II?
No, but it helps. The Sony a1 II has a UHS-II slot, so UHS-II cards write and offload faster. UHS-I cards work at UHS-I speed.
Should I use more than one card with Sony a1 II?
For long shoots, yes. Two mid-size cards cost about the same as one large card, and a failure then loses half your files instead of all of them.
Does the brand matter for Sony a1 II?
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 a1 II?
A card slower than V90 (SD), VPG400 (CFexpress) 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 a1 II?
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.