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Chapter 2: Hardware installaon | 15

B250MHC

SATA3_1/ SATA3_2/ SATA3_3/ SATA3_4: Serial ATA Connectors

These connectors connect to SATA hard disk drives via SATA cables.

Pin Assignment

1 Ground

2 TX+

3 TX-

4 Ground

5 RX-

6 RX+

7 Ground

JFRONT_USB3_1: Header for USB 3.2 (Gen1) Ports at Front Panel

This header allows user to add addional USB ports on the PC front panel, and also can be

connected with a wide range of external peripherals.

Pin Assignment Pin Assignment

1 VBUS0 11 D2+

2 SSRX1- 12 D2-

3 SSRX1+ 13 Ground

4 Ground 14 SSTX2+

5 SSTX1- 15 SSTX2-

6 SSTX1+ 16 Ground

7 Ground 17 SSRX2+

8 D1- 18 SSRX2-

9 D1+ 19 VBUS1

10 ID 20 Key

F_USB1/ F_USB2: Header for USB 2.0 Ports at Front Panel

This header allows user to add addional USB ports on the PC front panel, and also can be

connected with a wide range of external peripherals.

Pin Assignment

1 +5V (fused)

2 +5V (fused)

3 USB-

4 USB-

5 USB+

6 USB+

7 Ground

8 Ground

9 Key

10 NC

Biostar B250MHC User Manual

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