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HP Elite 8300 SFF USB 3.0 motherboard support

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HP Elite 8300 SFF
Microsoft Windows 10 (64-bit)

Is motherboard of HP Elite 8300 SFF have port and support USB 3.0 speed in case if I want to install for example 3.5 card reader with 3.0 USB port. There, on motherboard, is black color port marked as COMB serial port in user manual, is that right port and does it  support USB 3.0 speed. Thank You.

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This circa 2011 HP only supports USB1.1 and USB2.0   source pg 5-9 section 5.6

These systems provide ten externally-accessible USB ports; four front panel USB ports (which

may be disabled) and six USB ports on the rear panel. In addition, the SFF and CMT form factors

support a media reader accessory that uses two USB ports through a system board header

connection. The USB ports are dynamically configured to either a USB 1.1 controller or the USB

2.0 controller depending on the capability of the peripheral device. The 1.1 controllers provide a

maximum transfer rate of 12 Mb/s while the 2.0 controller provides a maximum transfer rate of

480 Mb/s.

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