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Forum Discussion
ULTRA2: USB 3.0 HDD only works on USB2.0 port and not USB3.0
Hi, very curious thing! I just bought an ReadyNAS Ultra2. I bought it specifically for the USB 3.0 port, because the ultra2 is the only model with 1 USB 3.0 port on the frontside. However, I ...
It sounds to me as if the Iomega drive is pulling too much power from the USB port. Remember that when booting a device, it takes more power than when it is running.
If you cannot connect an external power supply to the Iomega drive, then the suggestion previously suggested of using a USB 3.0 hub with it's own power supply would be a good idea. Here is an example.
A good clue to the high power draw is the fact that the drive comes with a "Y" adapter cable whose only purpose is to split the power draw between two USB ports. Unfortunately, the total power draw is still the same. From the dimensions of the drive, it sounds as if it has a 3 1/2 drive inside rather than the low power draw 2 1/2 drive or even lower power draw SSD. These drives many times do not even work on USB 2.0 if your plug both legs into the front ports of a PC, because both ports are connected to the same controller, so do not have enough power. All of my USB connected 3 1/2 drives have their own power supply.
An external SATA drive enclosure with USB 3.0 connection and it's own AC Adapter would have been a better choice. Newegg has 14 such enclosures priced between $20 and $50. Or a USB 3.0 drive with it's own AC adapter.
If you cannot connect an external power supply to the Iomega drive, then the suggestion previously suggested of using a USB 3.0 hub with it's own power supply would be a good idea. Here is an example.
A good clue to the high power draw is the fact that the drive comes with a "Y" adapter cable whose only purpose is to split the power draw between two USB ports. Unfortunately, the total power draw is still the same. From the dimensions of the drive, it sounds as if it has a 3 1/2 drive inside rather than the low power draw 2 1/2 drive or even lower power draw SSD. These drives many times do not even work on USB 2.0 if your plug both legs into the front ports of a PC, because both ports are connected to the same controller, so do not have enough power. All of my USB connected 3 1/2 drives have their own power supply.
An external SATA drive enclosure with USB 3.0 connection and it's own AC Adapter would have been a better choice. Newegg has 14 such enclosures priced between $20 and $50. Or a USB 3.0 drive with it's own AC adapter.
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