ASRock 870 Extreme3 User Manual - Page 24

2.8 Onboard Headers and Connectors Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over these headers and connectors. Placing jumper caps over the headers and connectors will cause permanent damage of the motherboard! Serial ATA3 Connectors (SATA3_1: see p.11, No. 20) (SATA3_2_3: see p.11, No. 19) (SATA3_4_5: see p.11, No. 18) These five Serial ATA3 (SATA3) connectors support SATA data cables for internal storage devices. The current SATA3 interface allows up to 6.0 Gb/s data transfer rate. SATA3_1 SATA3_2_3 SATA3_4_5 Serial ATA (SATA) Data Cable (Optional) USB 2.0 Headers (9-pin USB6_7) (see p.11 No. 30) (9-pin USB8_9) (see p.11 No. 29) (9-pin USB10_11) (see p.11 No. 27) USB_PWR P-7 P+7 GND DUMMY 1 GND P+6 P-6 USB_PWR USB_PWR P-9 P+9 GND DUMMY 1 GND P+8 P-8 USB_PWR USB_PWR P-11 P+11 GND DUMMY 1 GND P+10 P-10 USB_PWR Either end of the SATA data cable can be connected to the SATA3 hard disk or the SATA3 connector on this motherboard. Besides six default USB 2.0 ports on the I/O panel, there are three USB 2.0 headers on this motherboard. Each USB 2.0 header can support two USB 2.0 ports. 24