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Intel® Server Platforms SR6850HW4 and SR6850HW4/M Product Guide
Universal Serial Bus (USB) Interface
The main board provides a double-stacked USB port at the rear panel and one vertical USB port
located in the middle of the main board. The front panel I/O board provides three stacked USB port
connectors via a USB hub controller. These built-in USB ports permit the direct connection of six
USB peripherals without an external hub. If more devices are required, an external hub can be
connected to any of the built-in ports.
Table 16. USB Connector Pinout
Pin Signal
Dual
Stacked
USB
Connector on Rear
Panel
Triple Stacked
USB Connector
on Front Panel
1
Fused Voltage Controlled Current (VCC) (+5 V
with over-current monitoring)
2 USBPxM
(differential data line)
3
USBPxP (differential data line)
4 GND
(ground)
1
2
1
2
3