Question 1

To use the eSATA connectivity is a AC adapter needed ot will the USB cable power it?

Accepted Answer

Yes, you'll need an AC power supply.  The reason is the enclosure decides which interface to use at power up. I found this in their documentation and it still doesn't explicitly tell you that it scans the USB first, then eSata.  Unfortunately it's not smart enough to figure out if both are plugged in, you want to use the USB for power only.

I purchased an Enercell adapter with an H adaptaplug connector which fits perfect. The plug size you'll need is: O.D.: 3.4mm. I.D.: 1.3mm.  The polarity is +TIP, -Ring

Question 2

what dimensions does an external a/c adapter need to power this product?

Accepted Answer

5 volt at one amp or one and a half amp. The inner tip is positive.

Questions & Answers