Name: Intel DH87RL
Brand: Intel
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Intel Desktop Board DH87RL Technical Product Specification

1.5.2 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 H87 Express Chipset provides the USB controller for the USB 2.0/3.0 ports.

The port arrangement is as follows:

• USB 3.0 ports:

 Four USB 3.0 ports are implemented with stacked back panel connectors

 Two front panel USB 3.0 ports are implemented through one internal connector

• USB 2.0 ports:

 Two ports are implemented with stacked back panel connectors

 Four front panel ports are implemented through two dual-port internal

connectors

 One single-port internal header for front panel cabling

 One port is reserved for the PCI Express Full-/Half-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 Refer to

The location of the USB connectors on the back panel Figure 8, page 41

The location of the front panel USB headers Figure 9, page 42

1.5.3 SATA Interfaces

The board provides five SATA connectors, through the PCH, which support one device

each.

The PCH provides independent SATA ports with a theoretical maximum transfer rate of

6.0 Gb/s. 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).

For more information, see: http://www.serialata.org/

For information about Refer to

The location of the SATA connectors Figure 9, page 42

Intel DH87RL User Manual

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