Usb; Sata Interfaces - Intel DQ77KB 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 board supports up to four USB 3.0 ports and eight USB 2.0 ports.
The Intel Q77 Express Chipset provides the USB controller for the 2.0/3.0 ports. The
port arrangement is as follows:
Four USB 3.0 ports are implemented with stacked back panel connectors (blue, two
•
of which support USB charging)
Five front panel ports implemented through three internal headers (two dual and
•
one single header) (black)
• One port implemented in the PCI Express Half–Mini Card slot
Two ports implemented in the PCI Express Full-Mini Card slot
•
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 five SATA connectors, through the PCH, which support one device
each:
Two SATA 6.0 Gb/s interfaces through the Intel Q77 Express Chipset with Intel
•
Rapid Storage Technology RAID support (blue)
Two internal SATA 3.0 Gb/s interfaces through Intel Q77 Express Chipset with Intel
•
Rapid Storage Technology RAID support (black)
One internal mSATA port (PCI Express Full-/Mini-Card slot)
•
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 three 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).
Product Description
Refer to
Figure 13, page 52
Figure 14, page 53
®
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