Usb; Sata Interfaces - Intel DZ75ML-45K Specification

Intel Desktop Board DZ75ML-45K Technical Product Specification
1.5.3

USB

The PCH contains up to two Enhanced Host Controller Interface (EHCI) host controllers
that support USB high-speed signaling. High-speed USB 2.0 allows data transfers up to
480 Mb/s. All ports are high-speed, full-speed, and low-speed capable.
The PCH also contains an integrated eXtensible Host Controller Interface (xHCI) host
controller which supports USB 3.0 ports. This controller allows data transfers up to
5 Gb/s. The controller supports SuperSpeed (SS), high-speed (HS), full-speed (FS),
and low-speed (LS) traffic on the bus.
The Intel Z75 Express Chipset provides the USB controller for the 2.0/3.0 ports. The
port arrangement is as follows:
Four USB 3.0 ports:
•
 Two USB 3.0 ports are implemented with stacked back panel connectors (blue)
 Two front panel USB 3.0 ports are implemented through one internal connector
(blue)
• Ten USB 2.0 ports:
 Four ports implemented with stacked back panel
 Six front panel ports are implemented through three dual-port internal headers
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 a
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
1.5.4

SATA Interfaces

The board provides six SATA connectors, through the PCH, which support one device
each:
• Two internal SATA 6.0 Gb/s interfaces through the Intel Z75 Express Chipset with
®
Intel Rapid Storage Technology RAID support (blue)
Four internal SATA 3.0 Gb/s interfaces through Intel Z75 Express Chipset with Intel
•
Rapid Storage Technology RAID support (black)
The PCH provides independent SATA ports with a theoretical maximum transfer rate of
6.0 Gb/s for two ports and 3.0 Gb/s for four ports. A point-to-point interface is used
for host to device connections.
The PCH supports the Serial ATA Specification, Revision 3.0. The PCH also supports
several optional sections of the Serial ATA II: Extensions to Serial ATA 1.0
Specification, Revision 1.0 (AHCI support is required for some elements).
The underlying SATA functionality is transparent to the operating system. The SATA
controller can operate in both legacy and native modes. In legacy mode, standard IDE
24
Refer to
Figure 9, page 44
Figure 10, page 45