Problem: The performance and/or transfer speeds are slow when the Rocpro drive is
connected to my USB port.
Solution:
• USB ports come in different speeds from 12Mbits/s (USB 1.0), 480Mbits/s (USB.2) to up to
5,000Mbits/s (USB 3.0). If the Rocpro HD is connected to a USB 2.0 or 1.1 port (low speed)
or hub, the drive will work slower than if connected to a USB 3.0 port or hub.
Simply: if the USB 3.0 cable is connected (from Rocpro 900e) to a USB 2.0 connector in your
host computer the transfer speed will be reduced to up to 480 Mbit/s (which is the maximum
transfer speed of USB 2.0)
Problem: There is no increase in performance when the Rocpro drive is connected via the USB
cable to a USB 3.0 port.
Solution:
• Ensure that the USB 3.0 (and/or USB 2.0) drivers for the host bus and device have been
properly and securely installed. You may reinstall to assure proper installation.
Problem: The drive is working slow when connected directly to a USB 3.0 port on your
computer
Solution:
• Review the minimum system requirements for your computer to ensure it supports Supper
Speed USB 3.0.
General Notes:
• When connecting the device to USB 3.0 port in your computer please be sure that the
connection at the host computer is High Speed USB 3.0 and drivers (if required) are
installed, otherwise you may experience slower transfer speed between the host comport
and the Rocpro device.
Front Lights:
Problem: The front Light does not come ON.
Solutions:
• The Rocpro device may not be connected to electricity.
• The device switch is in the OFF position.
• The Built-in Power Supply does not work. Contact Rocstor technical support.
Situation: The light is green but it also flickers in Red.
Solutions:
• The Light is OFF when the drive is Reading/Writing; do not turn the device OFF in this
situation as you may lose the data being transferred in R/W.
• The light remains Green at normal operation or idle operation.
ROCSTOR | ROCPRO 900e user manual Page | 37
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