1. はじめに
This manual provides detailed instructions for the installation, operation, and maintenance of your GREATHTEK USB3.0 KVM Switch. This device allows you to control up to four computers using a single monitor, keyboard, and mouse, enhancing efficiency and reducing desktop clutter. Please read this manual thoroughly before use to ensure proper setup and optimal performance.
2.製品オーバーview
2.1 主な特徴
- 4ポートKVM機能: Control up to four computers with one set of keyboard, mouse, and monitor.
- 高解像度サポート: Supports resolutions up to 4K@60Hz (3840x2160@60Hz), backward compatible with lower resolutions like 1080p.
- USB 3.0 ハブ: Features three USB 3.0 ports for sharing peripherals such as USB flash drives, printers, and webcams among connected computers.
- ボタン切り替え: Easily switch between connected computers using the physical buttons on the device. Hotkey switching is not supported.
- アダプティブEDID: Ensures consistent display settings and resolutions when switching between computers, preventing screen re-arrangement.
- プラグアンドプレイ: 基本機能にはドライバーのインストールは必要ありません。
2.2 パッケージ内容
パッケージにすべてのアイテムが含まれていることを確認します。
- GREATHTEK HDMI KVM Switch (1 unit)
- USB 3.0 Cables (4 units)
- USB-C Power Cable (1 unit)
- HDMIケーブル(1本)
- フットパッド(4個)
- 取扱説明書(1部)

Image: The KVM switch unit along with the included USB 3.0 cables, USB-C power cable, HDMI cable, foot pads, and instruction manual.
3. セットアップ手順
KVM スイッチを接続するには、次の手順に従います。
- 電源接続: Connect the provided USB-C power cable to the 5V IN port on the KVM switch and to a suitable USB power adapter (not included) or a powered USB port.
- モニター接続: モニターを HDアウト HDMI ケーブルを使用して KVM スイッチのポートに接続します。
- Computer Connections (PC1-PC4): 各コンピューター(最大 4 台)ごとに次の操作を行います。
- Connect an HDMI cable from your computer's HDMI output to an HD入力 port on the KVM switch (e.g., PC1 HD IN).
- Connect a USB 3.0 cable from your computer's USB port to the corresponding USB3.0 について input port next to the HDMI input on the KVM switch (e.g., PC1 USB 3.0).
- 周辺機器の接続:
- Connect your keyboard and mouse to the dedicated USB 3.0 ports on the front panel of the KVM switch.
- Connect any other USB peripherals (e.g., USB flash drive, printer, webcam) to the remaining USB 3.0 ports on the front panel.
- 電源オン: Ensure all connections are secure, then power on the KVM switch and all connected computers and the monitor.

Image: A visual representation of how to connect computers, monitor, and peripherals to the KVM switch.
重要な注意: When connecting a computer to the KVM switch, both the HDMI cable for video and the USB 3.0 cable for keyboard/mouse/USB sharing must be connected simultaneously for proper functionality.
4. 操作手順
4.1 コンピュータ間の切り替え
To switch between the connected computers, simply press the corresponding PC1、PC2、PC3、またはPC4 button on the front panel of the KVM switch. The LED indicator next to the button will illuminate to show which computer is currently active.

Image: A hand pressing one of the PC selection buttons on the KVM switch, illustrating the switching mechanism.
注記: This KVM switch supports button switching only. Hotkey switching via keyboard commands is not available.
4.2 USB 3.0 ポートの使用
The three USB 3.0 ports on the front of the KVM switch allow you to share USB devices among all connected computers. When you switch to a different computer, the connected USB devices will automatically switch to that active computer.

Image: Visual representation of USB 3.0 ports on the KVM switch, highlighting their 5Gbps data transfer speed for devices like USB drives.
5. 仕様
| 特徴 | 詳細 |
|---|---|
| モデル | USB3.0+4 IN 1 OUT |
| ブランド | グレーテック |
| コネクタタイプ | HDMI、USB 3.0 |
| ビデオ解像度 | Up to 4K@60Hz (3840x2160@60Hz), compatible with 1080p and 3840x2160@30Hz |
| USBポート | 3 x USB 3.0(周辺機器用) |
| 切り替え方法 | ボタンスイッチ |
| EDIDサポート | アダプティブEDID |
| 電源 | 5V (via USB-C cable) |
| 材料 | 銅(接点材質) |
| アイテム重量 | 約1ポンド |
| 寸法 | 約9.92×7.2×2.72インチ |
6。 トラブルシューティング
問題が発生した場合は、次の一般的な解決策を参照してください。
- Display Quality Issues (Reduced Resolution, Flickering):
Ensure you are using high-quality HDMI cables. The use of conversion cables or switchers may affect display quality. Check the compatibility of all connected devices. If issues persist, try connecting the monitor directly to a computer to rule out the KVM switch as the cause.
- No Display or Peripherals Not Working:
Verify that both the HDMI cable and the corresponding USB 3.0 cable are securely connected from the computer to the KVM switch. Ensure the KVM switch is properly powered via the USB-C power cable. Try restarting the KVM switch and the connected computers.
- Compatibility Issues with Adapters/Docking Stations:
Product incompatibility may occur when using third-party adapters, converter cables, or docking stations. It is recommended to connect directly or contact seller support for compatibility verification.
- Windows 11 Icon Arrangement Offset:
If you experience icon arrangement issues on Windows 11 after switching, please contact GREATHTEK customer support for assistance.
- VGA or DVI to HDMI Cables:
Using VGA or DVI to HDMI converter cables is generally not recommended as they may lead to compatibility or performance issues.

Image: A summary of important reminders and troubleshooting tips for optimal KVM switch performance.
7. メンテナンス
KVM スイッチの寿命を延ばし、最適なパフォーマンスを確保するには、次のメンテナンス ガイドラインに従ってください。
- デバイスは直射日光や過度の熱を避け、涼しく乾燥した場所に保管してください。
- デバイスを湿気や液体にさらさないでください。
- デバイスの外側は、柔らかく乾いた布で拭いてください。刺激の強い化学薬品や研磨剤入りの洗剤は使用しないでください。
- 過熱を防ぐために、デバイスの周囲に適切な換気を確保してください。
- コネクタやポートの損傷を防ぐため、ケーブルを慎重に取り扱ってください。
8. 保証とサポート
GREATHTEK provides good after-sales service for this product. If you have any questions, concerns, or require technical assistance, please contact us via Amazon's messaging system. We are committed to providing a reasonable solution to any product-related issues.
具体的な保証条件については、購入書類を参照してください。





