ASROCK C621A WS, Manual, Page: 34 / 223

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English
Serial ATA3 DOM
Connectors
(SATA_4)
(see p.1, No. 18)
(SATA_5)
(see p.1, No. 16) The SATA3 DOM connectors
support both SATA DOMs
(Disk-On-Module) and SATA
data cables for internal storage
devices.
Serial ATA3 Connectors
Vertical:
(SATA_4)
(see p.1, No. 18)
(SATA_5)
(see p.1, No. 16) These two SATA3 connectors
support SATA data cables for
internal storage devices with
up to 6.0 Gb/s data transfer
rate.
*2 Type-C USB headers (USB31_TC1/
USB31_TC2) are shared with 2 SATA
7-pin headers (SSATA_2/SSATA_3)
(BOM option).
Serial Port Header
(9-pin COM1)
(see p.1, No. 44)
CCTS#1
RRTS#1
DDSR#1
DDTR#1
RRXD1
GND
TTXD1
DDCD#1
1
RRI#1
This COM header supports a
serial port module.
Clear CMOS Pad
(CLRMOS1)
(see p.1, No. 58) This allows you to clear the
data in CMOS. To clear CMOS,
take out the CMOS battery and
short the Clear CMOS Pad.
Non Maskable Interrupt
Button Header
(NMI_BTN2)
(see p.1, No. 46)
1
CONTROL
GND
Please connect a NMI device
to this header.
SATA_5
SATA_4
SATA_5
SATA_4