Usb 2.0 Support; Serial Ata Support; Lan Connector Leds - Intel DH55HC Product Manual

Intel Desktop Board DH55HC Product Guide
Table 3. LAN Connector LEDs
LED
A (Link/Activity)
B (Link Speed)

USB 2.0 Support

The board supports up to twelve USB 2.0 ports provided by two EHCI host controllers
in the PCH that allow the use of EHCI-compatible drivers.
The port arrangement is as follows:
• Six ports via stacked back panel connectors
• Six front panel ports via three dual-port internal headers; one header supports an
Intel Z-U130 USB Solid-State Drive (or compatible device)
USB 2.0 support requires both an operating system and drivers that fully support
USB 2.0 transfer rates.

Serial ATA Support

The board provides six internal SATA connectors through the PCH, four for internal
storage (black connectors) and two for internal as well as external SATA (eSATA)
storage (red connectors).
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Figure 2. LAN Connector LEDs
LED Color LED State
Green Off
On
Blinking
N/A Off
Green On
Yellow On
Indicates
LAN link is not established
LAN link is established
LAN activity is occurring
10 Mb/s data rate
100 Mb/s data rate
1000 Mb/s data rate