Today, we’ll see the ALITOVE 5V 3A DC Power Supply.
5V Power Supply are normally used in small USB hubs to provide additional power to the ports and be able to support power hungry devices like portable hard disk drives and optical disk drives. They are also used directly on some portable optical disk drives in case the hub or USB port can’t provide enough power. Other small devices may use it.
Other than the mentioned USB devices, there are a wide range of devices that may be powered by a 5V adapter or Power Supply. Due to the different types of connectors these devices may use, this Power Supply is perfect as it comes with additional connector tips, making this a universal 5V Power Supply.
Unboxing the Power Supply
This Power supply came in a small, generic box.
The Power Supply is inside in a plastic bag. We also see the connector tips right on the top side of it:
Contents taken out of the box:
Power Supply taken out of the plastic bag:
Here’s a closer look at the Power Supply:
We can see that it shows it outputs 5 volts and up to 3 amps.
Here is a closer look at the included tips:
Testing the Power Supply
To initially test this 5V Power Supply, I took out the Barrel to Micro USB connector tip and connected it to the adapter and the USB meter. We can see it outputs about 5.12V without anything connected to it:
With a load attached, such as a portable USB Hard Disk Drive, the voltage went down to 4.97V:
I then tried it with a USB 2.0 7-port hub, which required using a tip with a smaller barrel connector:
Without anything connected, the USB hub was outputting about 5.10V with this Power Supply:
With a USB Hard Disk Drive connected, the voltage went down to 4.93V:
The ALITOVE 5V 3A Power Supply seems like a good adapter to power those 5V-only USB Hubs. While we saw a voltage of 4.93V, this is well in the tolerance range and the USB hard disk did not perform any unusual noises which may happen when it is not receiving enough power. Therefore, I can conclude that this adapter does the job.
You can buy it on Amazon at the following link: