Best Memory Card for Panasonic Lumix S9
The Panasonic Lumix S9 writes stills and video to one SD card. Its highest movie bit rate is 200 Mbps, which Panasonic covers with Video Speed Class 30 or UHS Speed Class 3. Burst counts on the spec sheet used a UHS-II U3 card. The SanDisk Extreme PRO SDXC UHS-II Card is V90 and U3, at up to 300 MB/s write. Check SanDisk Extreme PRO SDXC UHS-II Card on Amazon.
Our Top Picks at a Glance
Reviewed September 2026 · one SD slot · 200 Mbps needs V30 or U3 · burst test used UHS-II U3
UHS-II, V90, and U3, at up to 300 MB/s write. It matches the bus Panasonic used for the burst test, and it clears the V30 video line.
Check Price at Amazon Read full review ↓The 256 GB and 512 GB cards are UHS-II V60 and U3, at 280 MB/s read and 170 MB/s write. Still above Video Speed Class 30.
Check Price at Amazon Read full review ↓Buy the 256 GB. It is UHS-I, V30, and U3, at up to 190 MB/s read and 130 MB/s write. That meets the 200 Mbps video rule.
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| Card | Job on this camera | Class and speed | Buy |
|---|---|---|---|
| SanDisk Extreme PRO SDXC UHS-II Card | UHS-II U3, the burst-test class | V90 · up to 300/300 MB/s | Check price |
| Nextorage NX-F2SE | UHS-II V60, 256 GB or 512 GB | V60 · 280/170 MB/s | Check price |
| SanDisk Extreme PLUS SD UHS-I Card | UHS-I V30 for 200 Mbps video | 256 GB · up to 190/130 MB/s | Check price |
How We Picked
The video rule and the burst-test card are not the same class. The picks follow that split.
- 200 Mbps video needs V30 or U3, and the card list stops at 512 GB. Panasonic Lumix S9 operating instructions, May 2024: SD, SDHC, and SDXC, maximum 512 GB. The camera supports UHS-I and UHS-II, UHS Speed Class 3, and UHS-II Video Speed Class 90. Clips at 72 Mbps or less need Class 10, UHS Speed Class 1, or Video Speed Class 10. Clips at 200 Mbps or less need UHS Speed Class 3 or Video Speed Class 30.
- The published burst depth was measured on UHS-II U3. Panasonic UK S9 specifications: at H, more than 35 RAW+JPEG, more than 55 RAW, and more than 120 JPEG frames before the speed drops, when the card is UHS-II UHS Speed Class 3. SH is 36 frames. The body with shoe cover, battery, and card is about 486 g. The card slot listing is a single SD slot.
- The three cards publish those classes at different buses. SanDisk Extreme PRO SDXC UHS-II card: up to 300 MB/s read and 300 MB/s write, 90 MB/s minimum, V90 and U3. Nextorage NX-F2SE, 256 GB and 512 GB: 280 MB/s read, 170 MB/s write, V60 and U3. The 128 GB write rating is 100 MB/s, so it is not this pick. SanDisk Extreme PLUS SD UHS-I, 256 GB: up to 190 MB/s read and 130 MB/s write, V30 and U3.
Detailed Reviews
SanDisk Extreme PRO SDXC UHS-II Card View on Amazon View on B&H
| Bus and class | SDXC UHS-II · V90 · U3 |
|---|---|
| Speed | Up to 300 MB/s read and 300 MB/s write |
| Sustained video write | 90 MB/s minimum |
| On this camera | Manual maximum is 512 GB |
Why it fits the Lumix S9. Panasonic’s burst note names a UHS-II U3 card. This SanDisk card is UHS-II and U3, and it adds V90, which the S9 also lists as a supported standard. Video at 200 Mbps only requires Video Speed Class 30. V90’s 90 MB/s minimum is above that. The extra speed is for clearing a burst and for copying the card, not because 6K or 4K on this body asks for V90. Stay at 512 GB or below. The May 2024 manual stops there.
Buy the 128 GB or 256 GB when the camera shoots RAW bursts and 200 Mbps video on the same card. Skip a card larger than 512 GB. The manual does not list it. A compact lens for this body is in the compact-lens guide for the Lumix S9.
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Nextorage NX-F2SE View on Amazon View on B&H
| Bus and class | SDXC UHS-II · V60 · U3 · Class 10 |
|---|---|
| 256 GB and 512 GB | 280 MB/s read · 170 MB/s write |
| 128 GB, not this pick | Write rating drops to 100 MB/s |
| Size | About 24×32×2.1 mm · about 2 g |
Why it fits the Lumix S9. Nextorage rates the 256 GB and 512 GB NX-F2SE at 170 MB/s write, V60, and U3, on UHS-II. That is the bus and the U3 class in Panasonic’s burst footnote, with a video class above the V30 line for 200 Mbps. It is not V90. The S9 does not require V90 for its top bit rate. The 128 GB card in the same series is rated at 100 MB/s write. Leave that capacity out.
Buy the 256 GB. It is inside the 512 GB manual cap and keeps the 170 MB/s write line. Skip the 128 GB if the write rating is why this card was chosen.
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SanDisk Extreme PLUS SD UHS-I Card View on Amazon View on B&H
| Bus and class | UHS-I · V30 · U3 · Class 10 |
|---|---|
| 256 GB speed | Up to 190 MB/s read · up to 130 MB/s write |
| Other capacities | 128 GB write up to 90 MB/s · 64 GB write up to 80 MB/s |
| Video minimum | V30, 30 MB/s sustained |
Why it fits the Lumix S9. Panasonic’s 200 Mbps line asks for U3 or Video Speed Class 30. The 256 GB Extreme PLUS is both, on UHS-I, at up to 130 MB/s write. V30’s 30 MB/s minimum sits above a 200 Mbps stream, which is 25 MB/s. The card does not match the UHS-II U3 card Panasonic used when it counted burst frames. Offloading and clearing a RAW burst are the slower job on this bus. The 128 GB and 64 GB write ratings are lower, so the pick is the 256 GB.
Buy the 256 GB when the camera’s work is 200 Mbps video and ordinary stills. Skip it when the burst counts on the spec sheet are the reason for the card. Those counts name UHS-II U3.
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If You Need Something Else
A card above 512 GB is outside the May 2024 manual, which sets that figure as the maximum. V90 is supported, and it is not the requirement for 200 Mbps. The UHS-II cards above already cover the burst-test class.
Frequently Asked Questions
Why 200 Mbps does not require V90
Panasonic’s manual puts clips of 200 Mbps or less on UHS Speed Class 3 or Video Speed Class 30. V30 is a 30 MB/s minimum sustained write. A 200 Mbps stream is 25 MB/s. The S9 also supports UHS-II Video Speed Class 90, which is a higher class than the video rule requires.
Which card the burst numbers assume
Panasonic’s spec sheet counts H-mode frames, more than 35 RAW+JPEG, more than 55 RAW, and more than 120 JPEG, until the speed drops, on a UHS-II UHS Speed Class 3 card. SH is 36 frames for RAW, RAW+JPEG, and JPEG. A UHS-I card is not that test card.
What the 512 GB ceiling means
The May 2024 instructions list SD, SDHC, and SDXC up to a maximum of 512 GB. A 1 TB or 2 TB SDXC card is outside that line. The 256 GB and 512 GB picks above stay inside it.
Why the 128 GB Nextorage card is a different rating
Nextorage lists the NX-F2SE 256 GB and 512 GB at 170 MB/s write and V60. The 128 GB write rating is 100 MB/s. The value pick is the 256 GB or the 512 GB, not the 128 GB.
What the record-time limits are doing
With Video Record Limit on, Panasonic stops 6K and 5.9K at 10 minutes, C4K, 4K, 3.8K, and 3.3K at 15 minutes, and FHD at 20 minutes. Turning the limit off removes that clock and can still stop recording if the body gets hot. The card class does not remove that thermal stop.
Final Verdict
The SanDisk Extreme PRO is the UHS-II V90 card, U3, up to 300 MB/s write. The Nextorage NX-F2SE is the V60 option, 256 GB or 512 GB, at 170 MB/s write. The SanDisk Extreme PLUS is the UHS-I V30 card, the 256 GB, for 200 Mbps video.