ASRock 870 Extreme3 R2.0 Quick Installation Guide - Page 22

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.2, No. 18) (SATA3_2_3: see p.2, No. 17) (SATA3_4_5: see p.2, No. 16) SATA3_2 SATA3_4 SATA3_3 SATA3_5 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. Serial ATA (SATA) Data Cable (Optional) SATA3_1 Either end of the SATA data cable can be connected to the SATA3 hard disk or the SATA3 connector on this motherboard. USB 2.0 Headers (9-pin USB6_7) (see p.2 No. 29) (9-pin USB8_9) (see p.2 No. 28) 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. (9-pin USB10_11) (see p.2 No. 27) English 22 ASRock 870 Extreme3 Motherboard