External Connections and Components

1 

Power button 

4 

Two USB ports 

2 

Power LED 

5 

Microphone-in jack 

3 

Two 1394 ports 

6 

Headphone-out jack 

1 

AC power connector 

10 

Ethernet connector 

2 

Power switch

11 

Cover plate (no slot) 

3 

Audio jack (green) 

12 

Slot 0, PCIe2 x16  

4 

Line-in jack (blue) 

13 

Slot 1, PCIe2 (x8 mechanical, x4 electrical) 

5 

Microphone jack (blue) 

14 

Slot 2, PCIe2 x16 

6 

Audio jack (gray) 

15 

Slot 3, PCIe x1 

7 

Audio jack (black) 

16 

Slot 4, PCI 33MHz, 32–bit slot 

8 

Audio jack (orange) 

17 

Slot 5, PCIe (x8 mechanical, x4 electrical) 

9 

Four USB 2.0 ports  

18 

Thumbscrew (for side cover)