5V AC to DC Power Adapter. This 5V power adapters works for a lot of 2.5" External Hard Drives.

Connector dimension: 3.5mm x 1.35mm
Outside Diameter: 3.5mm
Inside Diameter: 1.35mm

This AC to DC power adapter converts 110~240V AC power to 5V DC power. It works for external hard drives that made from 2.5" hard drive.

Input : 100~240V AC, 0.3A, 50~60HZ

Output: 5V DC, Max. Current: 2.0A *

Caution: For indoor use only

Polarity:

This adapter has the positive (+) in the middle and the negative (-) on the exterior of the plug.

* Current output is the maximum capacity of the adapter output. The current output is not a constant, it is variable. 2.0 A means it can output maximum 2.0A current at 5V. Actual current output depends how many the device requires, it can be any number between 0~2.0A. Just like your car, if its maximum speed is 140 Mile/Hour, it does not mean you have to drive at 140 M/H, you can drive at any speed below 140 M/H. If you get a car maximum speed is 160 M/H, of course you can drive it at any speed below 160 M/H, including 0 ~ 140 M/H.

This power adapter output connector specifications are:

Outside Diameter: 3.5mm

Inside Diameter: 1.35mm

Polarity: Positive
Please make sure the output connector polarity and dimension will fit your device DC plug.