導入
This manual provides instructions for the setup, operation, and maintenance of your Logitech G903 LIGHTSPEED Gaming Mouse. The G903 features LIGHTSPEED wireless technology for a 1 ms report rate, an advanced PMW3366 optical sensor, and compatibility with POWERPLAY wireless charging systems.
パッケージ内容
製品パッケージにすべてのアイテムが揃っていることを確認します。
- Logitech G903 LIGHTSPEED Gaming Mouse
- LIGHTSPEED Wireless Nano Receiver
- 充電/データケーブル
- ワイヤレス延長アダプタ
- Accessories Box (containing optional side buttons and 10g weight)

爆発した view of the Logitech G903 mouse and its components, including the mouse body, removable side buttons, LIGHTSPEED wireless nano receiver, charging cable, wireless extension adapter, and accessories box.
設定
1. 受信機の接続
The LIGHTSPEED Wireless Nano Receiver can be connected in two ways:
- 直接接続: Plug the nano receiver directly into an available USB port on your computer.
- Using the Extension Adapter: For optimal signal strength, especially if your computer is under a desk, connect the charging/data cable to the wireless extension adapter, then plug the nano receiver into the adapter. Connect the other end of the charging/data cable to a USB port on your computer.

The Logitech G903 mouse connected to its charging/data cable, demonstrating the wired connection option which can also be used with the extension adapter for the receiver.
2. マウスの充電
The G903 mouse can be charged using the provided charging/data cable. Connect the cable to the front port of the mouse and to a USB port on your computer. The mouse is also compatible with the Logitech POWERPLAY Wireless Charging System (sold separately), which allows for continuous charging while in use.
3. ソフトウェアのインストール(Logitech G HUB)
For full customization of buttons, DPI settings, lighting, and profiles, download and install the Logitech G HUB software from the official Logitech webサイト。このソフトウェアを使用すると、マウスの設定を好みに合わせてカスタマイズできます。
4. Ambidextrous Configuration
The G903 features a customizable design for both left and right-handed users. Side buttons can be attached or removed using the magnetic covers provided in the accessories box. Simply pull off the existing cover and snap on the desired button or blank cover.
5. Adding Weight
A 10-gram removable weight is included in the accessories box. To insert the weight, open the circular compartment on the bottom of the mouse, place the weight inside, and close the cover securely.

底 view of the Logitech G903 mouse, showing the ON/OFF switch, profile button, PMW3366 optical sensor, and the compartment for the 10g removable weight. Dimensions are also indicated.
オペレーティング
1. 電源のオン/オフ
Locate the ON/OFF switch on the bottom of the mouse. Slide the switch to the 'ON' position to power on the mouse. Slide it to 'OFF' when not in use to conserve battery.
2. ボタンの機能
The G903 features multiple programmable buttons:
- 左/右クリック: 標準的なマウス機能。
- スクロールホイール: Features hyperfast scrolling and can be clicked for middle-button functionality.
- DPI Cycle Buttons: Located below the scroll wheel, these buttons allow you to cycle through preset DPI sensitivity levels.
- Side Buttons (G4, G5): Customizable buttons, typically used for forward/back navigation or in-game commands.
- プロfile ボタン: Located on the bottom of the mouse, this button allows you to switch between stored profiles.

トップダウン view of the Logitech G903 LIGHTSPEED Gaming Mouse, highlighting its symmetrical design and central buttons.

Left-side perspective view of the Logitech G903 mouse, highlighting the customizable G4 and G5 buttons and textured grip.
3. DPI調整
Use the DPI cycle buttons to quickly switch between sensitivity settings. Further customization of DPI levels and the number of stages can be done through the Logitech G HUB software.
4. バッテリー寿命
The G903 offers up to 32 hours of battery life with no lighting and 24 hours with default lighting. Battery status can be monitored via the Logitech G HUB software. A low battery indicator will also appear on the mouse.
5. LIGHTSPEED Wireless Technology
The integrated LIGHTSPEED wireless technology provides a 1 ms report rate, ensuring minimal latency for responsive and reliable performance.
メンテナンス
1. 清掃
マウスを掃除するには、柔らかく糸くずの出ない布を使用してください。頑固な汚れには、軽くampen the cloth with water. Avoid using harsh chemicals or abrasive materials. Regularly clean the optical sensor area on the bottom of the mouse to ensure optimal tracking performance.
2. バッテリーのお手入れ
To prolong battery life, avoid fully discharging the mouse frequently. Charge the mouse when the low battery indicator appears. If not using the mouse for an extended period, switch it off.
トラブルシューティング
1. 接続の問題
- Ensure the LIGHTSPEED Wireless Nano Receiver is securely plugged into a USB port.
- マウスの電源がオンになっていることを確認します。
- Check the mouse battery level.
- Try connecting the receiver to a different USB port or using the wireless extension adapter.
- If issues persist, consult the Logitech G HUB software for re-pairing options or visit the Logitech support webサイト。
2. Sensor Performance Issues
- マウスの底面にある光学センサーを、柔らかく乾いた布で拭いてください。
- Ensure you are using the mouse on a suitable surface. Highly reflective or uneven surfaces may affect tracking.
3. 充電に関する問題
- Ensure the charging/data cable is securely connected to both the mouse and a powered USB port.
- If using a POWERPLAY mat, ensure the mat is properly connected and powered, and the POWERCORE module is correctly installed in the mouse.
仕様
| ブランド | ロジテック |
| モデル | G903 |
| 色 | 黒 |
| 接続技術 | Wireless (LIGHTSPEED) |
| 動き検出技術 | オプティカル(PMW3366) |
| DPI範囲 | 200~12,000DPI |
| 最大加速 | > 40G |
| 最高速度 | >400 IPS |
| 重さ | 107g(3.5オンス) |
| 寸法(長さ×幅×高さ) | 138.3 mm x 63.6 mm x 17.14 mm (5.4 インチ x 2.5 インチ x 0.67 インチ) |
| Battery Life (No Lighting) | 最大32時間 |
| Battery Life (Default Lighting) | 最大24時間 |
| ケーブル長さ | 1.80メートル |
保証とサポート
保証の詳細については、製品に付属の保証書を参照するか、ロジクールの公式ウェブサイトをご覧ください。 website. For further assistance, technical support, or to download the latest G HUB software, please visit Logitechサポート.





