PC DE BUREAU HP 290 G4 i3-1011U 4G/HDD 1TB/GRAVEUR DVD /Ecran HP 21.5 Front 1. Slim-height Bay - supporting an optical disk drive (Optional) 2. Power Button 3. Combo jack, Headphone/ Microphone 4. (4) SuperSpeed USB 5Gbps port2 5. (2) SuperSpeed USB 10Gbps port2 6. SD Card Reader (Optional) Back 1. Audio Line out 7. Serial Port 2. Audio Line in 8. Connector (2) USB 2.0 port 3. Standard lock slot 9. RJ-45 Network 4. HDMI Port1 10. Serial Port (Optional) 5. VGA Port1 11. Integrated accessories cable lock 6. Connector (2) USB 2.0 port (Optional) 12. Power Cord Connector3 13. Padlock Loop