ET 10000 internal Hard Drive

[cga]

What is the recommended HD for ET 10000, 2.5 or 3.5 size?

Will this one work "WD 1 TB 2.5-inch SATA Internal Hard Drive"

Is there anything I need to be aware when getting the internal HD?

[Sicilian]

Any 2.5" SATA HDD should be fine.