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Intel Desktop Board D850GB/D850GBAL Product Guide
14
USB Support
The board has two USB ports. Two additional ports may be connected to a header on the board.
You can connect two USB peripheral devices directly to the computer without an external hub. To
attach more than two devices, connect an external hub to either of the built-in ports. The board
supports the standard universal host controller interface (UHCI) and takes advantage of standard
software drivers written to be compatible with UHCI.
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NOTE
Computer systems that have an unshielded cable attached to a USB port might not meet FCC
Class B requirements, even if no device or a low-speed USB device is attached to the cable. Use a
shielded cable that meets the requirements for a full-speed USB device.
PCI Enhanced IDE Interface
The ICH2’s IDE interface handles the exchange of information between the processor and
peripheral devices like hard disks, CD-ROM drives, and Iomega Zip
†
drives inside the computer.
The interface supports:
• Up to four IDE devices (such as hard drives)
• ATAPI devices (such as CD-ROM drives)
• PIO Mode 3 and PIO Mode 4 devices
• Ultra ATA-66/100 protocols
• Support for laser servo (LS-120) drives
Expansion Slots
The board has:
• Five PCI bus add-in card connectors
• One AGP connector
• One CNR connector shared with PCI slot 5 (D850GB only)