Intel D2550DC2 Technical product specification - Page 21

USB, 1.5.3 SATA Support, Product Description, For information about, Refer - driver

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Product Description 1.5.2 USB The board provides up to seven USB 2.0 ports, supports UHCI and EHCI, and uses UHCI- and EHCI-compatible drivers (four ports routed to the back panel and three ports routed to two front panel USB 2.0 headers). One of the front panel USB headers (brown-colored) supports an Intel Z-U130 USB Solid-State Drive or compatible device. NOTE Computer systems that have an unshielded cable attached to a USB port may not meet FCC Class B requirements, even if no device is attached to the cable. Use shielded cable that meets the requirements for full-speed devices. For information about The location of the USB connectors on the back panel The location of the front panel USB headers Refer to Figure 9, page 39 Figure 11, page 41 1.5.3 SATA Support The board provides two SATA interface connectors that support one device per connector. The board's SATA controller offers independent SATA ports with a theoretical maximum transfer rate of 3.0 Gb/s on each port. One device can be installed on each port for a maximum of two SATA devices. A point-to-point interface is used for host to device connections, unlike PATA which supports a master/slave configuration and two devices on each channel. For compatibility, the underlying SATA functionality is transparent to the operating system. The SATA controller supports IDE and AHCI configuration and can operate in both legacy and native modes. In legacy mode, standard ATA I/O and IRQ resources are assigned (IRQ 14 and 15). In native mode, standard Conventional PCI bus resource steering is used. Native mode is the preferred mode for configurations using the Windows Vista* operating system. For information about Obtaining AHCI driver The location of the SATA connectors Refer to Section 1.2, page 16 Figure 11, page 41 21

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Product Description
21
1.5.2
USB
The board provides up to seven USB 2.0 ports, supports UHCI and EHCI, and uses
UHCI- and EHCI-compatible drivers (four ports routed to the back panel and three
ports routed to two front panel USB 2.0 headers).
One of the front panel USB headers
(brown-colored) supports an Intel Z-U130 USB Solid-State Drive or compatible device.
NOTE
Computer systems that have an unshielded cable attached to a USB port may not meet
FCC Class B requirements, even if no device is attached to the cable.
Use shielded
cable that meets the requirements for full-speed devices.
For information about
Refer to
The location of the USB connectors on the back panel
Figure 9, page 39
The location of the front panel USB headers
Figure 11, page 41
1.5.3
SATA Support
The board provides two SATA interface connectors that support one device per
connector.
The board’s SATA controller offers independent SATA ports with a theoretical
maximum transfer rate of 3.0 Gb/s on each port.
One device can be installed on each
port for a maximum of two SATA devices.
A point-to-point interface is used for host to
device connections, unlike PATA which supports a master/slave configuration and two
devices on each channel.
For compatibility, the underlying SATA functionality is transparent to the operating
system.
The SATA controller supports IDE and AHCI configuration and can operate in
both legacy and native modes.
In legacy mode, standard ATA I/O and IRQ resources
are assigned (IRQ 14 and 15).
In native mode, standard Conventional PCI bus
resource steering is used.
Native mode is the preferred mode for configurations using
the Windows Vista* operating system.
For information about
Refer to
Obtaining AHCI driver
Section 1.2, page 16
The location of the SATA connectors
Figure 11, page 41