10 Best Memory Card Of 2026
Memory Card — Reviews, Recommendations & Updated Buying Guide September 2026


SanDisk SanDisk Ultra Lite
おすすめの理由

SanDisk 128GB Ultra Upto 100MB/s
おすすめの理由

Micro SD Card
おすすめの理由

Sandisk Ultra Android microSDHC 32
おすすめの理由

SanDisk 64GB Ultra SDXC Card
おすすめの理由

SanDisk Ultra SDHC UHS- I Card
おすすめの理由

SanDisk Extreme PRO MicroSDXC Card
おすすめの理由

SanDisk (サンディスク) 256GB Extreme PRO
おすすめの理由

Sandisk 256GB Ultra Microsdxc Uhs
おすすめの理由

SanDisk Ultra 32GB microSD Card
おすすめの理由
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10 Best Memory Card Of 2026
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SanDisk SanDisk Ultra Lite microSDXC 128GB 100MB/s SDSQUNR-128G-GN6MN

SanDisk 128GB Ultra Upto 100MB/s UHS-I Class 10 microSDXC Card-SDSQUNS-128G-GN6MN

Micro SD Card, 256 GB, SanDisk, UHS-3, Class 10, Nintendo Switch Recommended, SDSQXAV-256G-GN6MN SD Converter, No SD Adapter, International Packaging

Sandisk Ultra Android microSDHC 32 Gb 80 Mb/s Class 10 Featuring Class 10 for Full HD4 - SDSQUNS-032G-GN3MN

SanDisk 64GB Ultra SDXC Card, SD Memory with Up to 140 MB/s Read Speeds, for Entry Level and Mid-Range Compact Cameras, Full HD Video, UHS-I, Class 10, U1

SanDisk Ultra SDHC UHS- I Card - 32GB | 120MB/s, UHS-I, U1, Class 10, Full HD Video, Water Resistant Design, Impact Resistant Construction

SanDisk Extreme PRO MicroSDXC Card, 256GB, SD Adapter, RescuePRO Deluxe, up to 200MB/s, A2 App Performance, for Smartphones, Action Cameras or Drones, UHS-I, Class 10, U3, V30

SanDisk (サンディスク) 256GB Extreme PRO SDXC UHS-I メモリーカード - C10、U3、V30、4K UHD、SDカード - SDSDXXD-256G-GN4IN

Sandisk 256GB Ultra Microsdxc Uhs 1 Card 100Mb/S Grey -Sdsqunr-256G-Gn3Mn, Grey

SanDisk Ultra 32GB microSD Card UHS‑I Class 10 100MB/s MicroSDHC Memory Card for Smartphone, Tablet & Camera
購入ガイド: Memory Card
📋 目次
1What storage capacity should I choose for my memory card?
For casual use like photos and videos, 32GB to 128GB is typically sufficient. If you shoot 4K video or use your card for large files, go for 256GB or higher. Higher capacity cards also offer more reliability for data-heavy tasks.
2What speed class should I look for in a memory card?
For standard HD video recording, a Class 10 card with UHS-I speed is adequate. For 4K or 8K video, look for UHS-II or UHS-III with video speed ratings of at least V30 or V60. Faster cards reduce lag and ensure smooth data transfer.
3What’s the difference between SD, microSD, and CF cards?
SD and microSD cards are compact and ideal for smartphones, cameras, and drones. CF (CompactFlash) cards are larger, faster, and used in professional cameras. Choose based on your device’s slot and performance needs.
4Are all memory cards compatible with every device?
No — check your device’s manual for supported card types and sizes. Some older devices may not support newer formats like SDXC or microSDXC. Also, ensure your device can read the card’s speed class for optimal performance.
5What should I look for in a memory card’s durability and reliability?
Opt for cards rated for extreme temperatures, water resistance, and shock resistance, especially for outdoor or rugged use. Look for cards with built-in error correction and a warranty of at least 5 years for added peace of mind.
選び方について
編集者は製品を試し、それについて書くことを心から愛するメンバーです。各製品の実際の使いやすさと強みを比較し、最も重要な点を独自の「おすすめの理由」にまとめています。購入前に、大切なポイントがひと目でわかります。