ASRock Z77 Extreme3 Quick Installation Guide - Page 33
English, 10 Onboard Headers and Connectors
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2.10 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 ATA2 Connectors (SATA2_2_3: see p.2, No. 13) (SATA2_4_5: see p.2, No. 14) SATA2_3 SATA2_5 SATA2_2 SATA2_4 These four Serial ATA2 (SATA2) connectors support SATA data cables for internal storage devices. The current SATA2 interface allows up to 3.0 Gb/s data transfer rate. Serial ATA3 Connectors (SATA3_0_1: see p.2, No. 12) SATA3_1 SATA3_0 These two 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) Either end of the SATA data cable can be connected to the SATA / SATA2 / SATA3 hard disk or the SATA2 / SATA3 connector on this motherboard. USB 2.0 Headers (9-pin USB4_5) (see p.2, No. 22) (9-pin USB6_7) (see p.2, No. 21) Besides four default USB 2.0 ports on the I/O panel, there are two USB 2.0 headers on this motherboard. Each USB 2.0 header can support two USB 2.0 ports. English 33 ASRock Z77 Extreme3 Motherboard