Does the unit require external power?
1742666
No it does not. You can however add 2 AA batteries if you want. I have never done this and the phone works great and the display works too.
1742667
No external power source required. I added the required AA batteries in order to keep the call memory intact. However, if you want this as a wall phone, you are wasting your money. The receiver does not stay in the cradle.............
862202
It works without power supply when attached devices have little power consumption but peripherals such as an external hard drive that draws power from the port requires the added boost of the external power supply.
1272887
No, it will need to get power from USB cable. Meanwhile, it will also need to get signal and drawing through computer's support.
1623486
No but you need some sort of power. Whether it be the power pod or an extension cord.
23300
No. It gets its power supply from the raspberry itself. No need for external power
206049
It has and requires an external power supply. I purchased this particular external drive because I needed an external drive that had its own power supply to get files off of an old laptop computer that only had USB 1.0 ports. USB 1.0 ports are old technology do not provide enough power to an external drive. It was by far the easiest way way to recover and save those files to use this self-powered external drive. There were other ways, but this was a simple solution for me. Moral of the story is that a separate power supply is not always a detriment.
798601
Yes. It comes with an external power transformer that plugs into a wall outlet.
474735
No, I draws its power from the mother board. You may be thinking of USB hubs, which often require external power. Hope this helps.
1739254
No. The unit must be plugged in to an outlet and powered on in order to function.
121995
No, it doesn't. It's necessary for the unit to be plugged in to a power outlet for use.
2042045
No. It is powered by the receiver and needs one of the ones as WiliWali already mentioned.
452026
There is no external power supply. The phone line and the batteries suffice.
1551587
The device does require external power. It cannot run off of USB or eSATA power alone. So, yes, it does plug into an AC outlet if that is what you are referring to.
1006492
No, It's a self contained unit with a battery compartment on the left side and on off and volume on the right. there is no provision for any external connection, on this or the previous version
877209
No this is a classic no frills old school phone. No external power source is needed. Perfect for power outages as long as the phone lines are not down somewhere on you're grid.
1428082
Yes you need a power outlet to plug the unit into for power. Hope this answers your question.
514062
No power is needed for this unit. You only need a water hose to hook up to..