QNAP Security VioStor NVR (Version: 4.0.0) - Manual (Page 19)

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1.2.9 VS – 2112 / 2108 / 2104 Pro+
1. One-touch-auto-video-backup button
2. USB 3.0
3. LED Indicators: LAN, HDD1, HDD2
4. Power Button
5. Power Connector
6. Gigabit LAN x 2
7. USB 2.0 x 4
8. Password & Network Settings Reset Button
9. K-Lock Security Slot
10. Audio In/Out