1.製品オーバーview
The Plugable USB-C Multi-Card Reader (USBC-FLASH3) is a high-performance, driverless card reader designed to enhance your USB 3.1 Type-C (USB-C) device with fast data transfer capabilities. It supports a wide range of memory card formats, making it a versatile accessory for various computing needs.

Figure 1: Plugable USB-C Multi-Card Reader (USBC-FLASH3)
主な特徴:
- 超高速パフォーマンス: Supports USB 3.1 Type-C (USB-C) for high-speed data transfer.
- 幅広い互換性: Compatible with Late 2016 / 2017 / 2018 MacBook Pro, 12" Retina MacBook, Chromebook Pixel, and most USB-C and Thunderbolt 3 host PCs.
- マルチカードサポート: Easily access Secure Digital (SD), MultiMediaCard (MMC), and Memory Stick (MS) formats, including Micro SD.
- 無人運転: Functions out of the box with Mac, Linux, and Windows Desktop or Laptop systems without requiring additional driver installation.
- 最適なカードパフォーマンス: Offers UHS-I mode support for SD, SDHC, and SDXC cards up to 104 MB/sec and accommodates SDXC / MSXC Cards up to 2 TB in size.
2. セットアップ手順
The Plugable USB-C Multi-Card Reader is designed for simple plug-and-play functionality. Follow these steps to begin using your device:
- ホストデバイスに接続します: Plug the USB-C connector of the card reader into an available USB-C or Thunderbolt 3 port on your computer.
- メモリカードを挿入します: Carefully insert your desired memory card (SD, Micro SD, MMC, or MS) into the corresponding slot on the card reader. Ensure the card is inserted correctly and fully seated.

Figure 2: Inserting an SD Card into the Reader
互換性に関する注意:
- Compatible with Windows (11, 10, 8.1/8), Mac OS X (10.10 Yosemite and newer), and Linux (3.x Kernel and newer versions).
- For Mac users, some ports may require extra force for full insertion.
- Mobile platforms, especially most Android devices with USB-C ports, generally DO NOT SUPPORT adding mass storage devices without rooting/jailbreaking. Verify with your device manufacturer before attempting to use the card reader with mobile devices.
3. 操作手順
Once connected and a memory card is inserted, your computer should automatically recognize the card reader as an external storage device. You can then access the contents of the memory card as you would with any other drive.
サポートされているカードの種類:
- セキュアデジタル (SD)
- マルチメディアカード(MMC)
- メモリースティック(MS)
- マイクロSD
データ転送:
The card reader supports high-speed data transfer, leveraging USB 3.1 Type-C capabilities. Transfer speeds for UHS-I mode SD, SDHC, and SDXC cards can reach up to 104 MB/sec.
安全な取り外し
Always safely eject the memory card from your operating system before physically removing it from the card reader or disconnecting the card reader from your computer. This prevents data corruption.
4. メンテナンス
To ensure the longevity and optimal performance of your Plugable USB-C Multi-Card Reader, follow these simple maintenance guidelines:
- クリーニング: Use a soft, dry, lint-free cloth to clean the exterior of the device. Avoid using liquid cleaners or solvents.
- ストレージ: カードリーダーは、直射日光や極端な温度を避け、涼しく乾燥した場所に保管してください。
- 取り扱い: デバイスを落としたり、強い衝撃を与えたりしないでください。メモリカードをスロットに無理に押し込まないでください。
5。 トラブルシューティング
If you encounter issues with your Plugable USB-C Multi-Card Reader, please refer to the following common solutions:
- デバイスが認識されません:
- Ensure the USB-C connector is fully inserted into your computer's port. Mac ports may sometimes require extra force.
- Try connecting the card reader to a different USB-C or Thunderbolt 3 port on your computer.
- コンピュータを再起動してもう一度お試しください。
- オペレーティング システムが最新であることを確認してください。
- メモリカードが検出されません:
- Verify the memory card is inserted correctly and completely into the appropriate slot.
- Test with a different memory card to rule out a card issue.
- Note that the physical write-protect switch on SD cards is not supported by this reader. Ensure your card is not write-protected if you intend to write data.
- 転送速度が遅い:
- Ensure your computer's USB-C port supports USB 3.1 (or Thunderbolt 3) for optimal speeds. Connecting to a USB 2.0 port will result in slower speeds.
- The performance of the memory card itself can affect transfer speeds. Use high-speed cards for best results.
- モバイル デバイスの互換性: As noted in the setup section, most Android devices with USB-C ports do not natively support external mass storage without modifications. If you are experiencing issues on a mobile device, this is likely the cause.
If these steps do not resolve your issue, please contact Plugable Support for further assistance.
6. 仕様

Figure 3: Product Packaging with Specifications
| 特徴 | 詳細 |
|---|---|
| ブランド | プラグ可能 |
| モデル番号 | USBC-FLASH3 |
| 接続技術 | USB Type C (USB 3.1) |
| サポートされるメディアタイプ | SD, SDHC, SDXC, Micro SD, MMC, MS, MSXC |
| Max Card Capacity | Up to 2 TB (SDXC / MSXC) |
| オペレーティングシステム | Windows、macOS、Linux 対応 |
| アイテム重量 | 1.6オンス |
| 製品寸法(長さx幅x高さ) | 7.28 x 4.53 x 0.79インチ |
| 色 | Flash Silver (Product appears green in images) |

図4: 製品寸法
7. 保証情報
Plugable products typically come with a limited warranty. For detailed information regarding the warranty period, coverage, and terms for your USBC-FLASH3 Multi-Card Reader, please refer to the official Plugable webサイトにアクセスするか、カスタマー サポートにお問い合わせください。
8. サポート
For technical assistance, troubleshooting, or any questions regarding your Plugable USB-C Multi-Card Reader, please contact Plugable Support:
- メールサポート: support@plugable.com
- 製品ページ: Visit the official product page for the USBC-FLASH3 on the Plugable website for FAQs, drivers, and additional resources. You can often find this by searching for "Plugable USBC-FLASH3" online.
No relevant instructional videos from the seller were available for direct embedding in this manual.