ASRock P55DE Pro User Manual - Page 25

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! FDD connector (33-pin FLOPPY1) (see p.11 No. 22) Pin1 FLOPPY1 the red-striped side to Pin1 Note: Make sure the red-striped side of the cable is plugged into Pin1 side of the connector. Serial ATAII Connectors (SATAII_1: see p.11, No. 12) (SATAII_2: see p.11, No. 13) SATAII_3 (SATAII_3: see p.11, No. 11) (SATAII_4: see p.11, No. 14) SATAII_4 SATAII_1 SATAII_2 Serial ATA (SATA) Data Cable (Optional) USB 2.0 Headers (9-pin USB12_13) (see p.11 No. 17) (9-pin USB10_11) (see p.11 No. 16) (9-pin USB8_9) (see p.11 No. 19) USB_PWR P-13 P+13 GND DUMMY 1 GND P+12 P-12 USB_PWR USB_PWR P-11 P+11 GND DUMMY 1 GND P+10 P-10 USB_PWR USB_PWR P-9 P+9 GND DUMMY 1 GND P+8 P-8 USB_PWR 25 These four Serial ATAII (SATAII) connectors support SATA data cables for internal storage devices. The current SATAII interface allows up to 3.0 Gb/s data transfer rate. Either end of the SATA data cable can be connected to the SATA / SATAII hard disk or the SATAII 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.