SanDisk 256GB Extreme SDXC UHS-I Memory Card - C10/U3/V30/4K/UHD SD Card - SDSDXVV-256G-GNCIN

2025年9月に2480円で購入しましたが、現在の価格なんと4999円、、、 半導体不足とはいえ2倍の値上がりに愛用者として涙が止まりません。 本当に良いメモリーカードです。 SONYのα7c IIにいれて使っています。 jpegと編集データを同時に撮ると大体2300枚程度入ります。 容量がなくなったらマジックで年月を記載し保管、新しいカードを買うという贅沢な使い方をしていました。 が、値上がりがすごいので今後はHDDに写して使い回すことになりそうです。

頼んですぐ届きました。 安いので助かります。 処理速度が高くなにので超高速連写では、かたまることがありますが、その他はいまのところ問題なく使えています。

ガソリンも一夜にしてリッター３０円上がっていたけれど、その後下がった。SDカードもGBが違うのではないかと思えるほどの値上がり。その中でも、比較的安かった。何度も買っているので、品質についての心配はありません。

Lumix G7用に購入。動画も写真も1日撮影するくらいなら64GBで大丈夫です。連射にすると4枚目くらいからかくつきはじめます。

信頼性が高くリピートで購入していますが、最近の価格高騰で⭐︎マイナスです。

速度も速く信頼して何枚も使っております

信用できる素材です。

文句のつけようのない商品です。 たまに外れもありますが・・・・

✅ What’s great This card is advertised to support 4K UHD video recording without stuttering, which makes it well-suited for video shooters. Amazon +2 cameramemoryspeed.com +2 One test of the “Extreme 150 MB/s UHS-I U3 V30 128 GB” version found read speeds up to ~153 MB/s and write speeds up to ~89 MB/s. cameramemoryspeed.com Strong reputation: Many users highlight its reliability, durability (waterproof, shockproof when compared to peers), and wide compatibility with cameras. Best Buy +1 Good capacity (128GB) means you can store lots of RAW photos or extended 4K video clips without swapping cards too often. ⚠️ Some things to keep in mind While the read and write speeds are good, they may not reach the maximum rated speeds in all real-world situations and not all card readers/cameras will allow full speed. For example, one review noted the read speed dropped when used in non-pro card readers. cameramemoryspeed.com +1 If your camera supports UHS-II or higher (or very high bitrate 4K/6K/8K recording), a UHS-I card may be a bottleneck in some setups (though for many 4K setups it’s fine). DPReview As with all SD cards: always buy from a trusted seller (to avoid counterfeit cards) and format the card in your camera before use. 🎯 My verdict If you’re using a mid to high-end DSLR or mirrorless camera and you shoot 4K video (or lots of high-res stills), this card is a very solid choice. It gives a good mix of capacity, speed and reliability for many creators. Unless you’re doing ultra high-end cinema workflows (e.g., 8K or very high bit-rate RAW internal recording), you’ll likely find this card more than adequate. So yes — I’d recommend it for your setup (especially since you are into videography/photography for your digital marketing and content creation work).

Works well 🔥

Original product. Made my dslr from sleeping and thinking to capture photos to taking fast burst shots. Totally recommended for speed boost.

No complaints, works well (Sony a7IV)

Great Speed, No Dropouts: This SanDisk Extreme card has been rock-solid since day one. I use it primarily for video and photography on bigger jobs where I need reliability — and it hasn't let me down. It handles 4K recording smoothly, with no buffering issues or write delays. Ideal for High-Pressure Workflows: I often shoot long clips or burst photos, and this card keeps up without breaking a sweat. The UHS-I U3 and V30 ratings aren’t just marketing — you really do get the kind of performance needed for UHD and large file transfers. It's made a real difference during time-sensitive shoots. Reliable for Field Use: It’s also held up well in varied outdoor conditions — hot days, some dust, and a few quick swaps between devices — no corruption or weird behavior. Just plug it in and go. Final Thoughts: If you’re doing serious photography or video work and want peace of mind that your footage is safe and your camera won’t lag, this card is absolutely worth it. I’ll be picking up a second one soon — it’s been that reliable.