USB Ports
You can access two USB ports from the front of the server and one USB port from the rear of the server. The USB ports support hot-plugging. You can connect and disconnect USB cables and peripheral devices while the server is running, without affecting server operations.
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1
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Front USB ports.
The maximum USB cable length for connecting to the server's front USB 2.0 ports is 5 meters (16.4 ft).
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2
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Rear USB port.
The maximum USB cable length for connecting to the rear USB 3.0 ports is 1.8 meters (6 ft). When more than 1.8 meters (6 ft) of cable is needed, you must use an USB 3.0 Hub.
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Note -
You can connect up to 126 devices to each of the three USB controllers (two ports in front, one port in rear).
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1
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+5V supply
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3
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Data +
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2
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Data -
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4
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Ground
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