The Buffalo Replacement 4TB Hard Drive for DriveStation Ultra is a NAS hard drive that is compatible with your Buffalo DriveStation Ultra. It can replace a defective drive or upgrade your current drive with a capacity of 4TB.

4TB Data Capacity    Designed for DriveStation Ultra

Related Questions and Answers

Q: 1. what version of thunderbolt cable comes with? Thunderbolt cable 1 or 2 ?

A: Unless they have changed the design, this is a thunderbolt 1 device which comes with a thunderbolt 1 cable. The fact that is thunderbolt 1 vs. 2 is a non-issue because you're limited (even with a fast raid set up) by the speed of the internal non-SSD hard drives, which though 7200, perform at a speed much less than possible through thunderbolt 1 technology. That being said, I own five of these drives and like them very much.

Q: 2. What is the limitation in the hardware that prohibits RAID 1 configurations in Disk Utility on the Mac?

A: The RAID hardware only allows for RAID 0 configuration. You do have the option to Erase the contents of the G-RAID partition in disk utility and reformat the drive to be used as a regular drive without any RAID.

Q: 3. How do you power off the drive?

A: I would suggest to safely remove the Buffalo 2TB DriveStation Axis Velocity USB 3.0 External Desktop Hard Drive by disconnecting it on the computer.

Q: 4. Does G-RAID 8TB means the actual capacity is 4TB?

A: If you leave the unit as RAID 0, then you will have 8TB capacity, and the device would be used as a working drive. If you reconfigure it as RAID 1 (mirror) then you will have 4TB of useable space, and a duplicate of your data on the 2nd drive.

Q: 5. Is hardware RAID 1 supported on this?

A: As far as I can tell, the RAID controller on the drive does NOT allow you to switch between RAID 0 and RAID 1, but you can switch it to RAID 1 through the OS X disk utility. I hope this answers your question. Let me know if you have any additional questions.

Q: 6. Can this unit be connected to my 4TB G-Technology 4/4000 in order to expand my total storage to 8TB?

A: If your current drive has firewire it can be daisy chained. It will appear as a separate drive though.

Q: 7. Is this okay to use in Europe? And if so, is there a power cord that I could use there with this?

A: The included AC adapter supports 100-240v. Please note that the included plug is the US plug. You would need a plug adapter to use in Europe.

Q: 8. Where's the fan sound? Ive been using this unit for 3 days and feels a little hot, but the fan doesnt start. Also I connected my 2nd display to the TB port of this unit and doesn't work... Am I missing something?

A: Just turned on my 8TB G-RAID TB. There is a startup sound, then it has only a very faint sound, which I assume is the fan but I'm not really sure. I searched the G-Tech support pages but couldn't find anything specific to the G-RAID fan. There was something about another model, G-Safe, having a fan that only comes on when the drive overheats. But I don't know if that applies to the G-RAID too. I have a vague memory that my drive case sometimes feels a little warm and maybe reading somewhere that that's OK. But if yours feels really hot, you might want to just return it and ask to exchange it for another one. Also, do you have at least 4 inches of free space around all sides of the drive? I think that's supposed to be especially important in the rear, in terms of good ventilation.

Q: 9. can it be attached to the modem as a backup device ?

A: No this would not work.

Q: 10. does it works with european dc power standards (50HZ - 220v)

A: Yes, the G-Technology 4TB G-RAID External Dual-Drive Storage System will work with voltage from 100-240v AC at 50/60Hz without an issue. Please note that it ships with a US power cord, and you will need an adapter to allow it to fit into a European outlet.