ASRock H55M User Manual - Page 26

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 ATAII Connectors (SATAII_1: see p.12, No. 9) (SATAII_2: see p.12, No. 8) (SATAII_3: see p.12, No. 10) (SATAII_4: see p.12, No. 11) 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. SATAII_4 SATAII_2 SATAII_3 SATAII_1 Serial ATA (SATA) Data Cable (Optional) Either end of the SATA data cable can be connected to the SATA / SATAII hard disk or the SATAII connector on this motherboard. USB 2.0 Headers (9-pin USB10_11) (see p.12 No. 17) (9-pin USB8_9) (see p.12 No. 14) (9-pin USB6_7) (see p.12 No. 15) 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 USB_PWR P-7 P+7 GND DUMMY Besides four 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. Print Port Header (25-pin LPT1) (see p.12 No. 24) 1 GND P+6 P-6 USB_PWR AFD# ERROR# PINIT# SLIN# GND 1 SPD7 SPD6 ACK# SPD5 BUSY SPD4 PE SPD3 SLCT SPD2 SPD1 SPD0 STB# This is an interface for print port cable that allows convenient connection of printer devices. 26