Connecting a second monitor to an all-in-one pc

[regularguy245]

My dad has an all-in-one pc (ET2410 by ASUS https://www.asus.com/All-in-One-PCs/ET2410INTS/specifications/ ) and wants to add a second monitor (some old, crappy DELL; S2240Mc{this is the closest one I could find https://www.cnet.com/products/dell-s2240m-led-monitor-21-5-s2240m/specs/ }). The second monitor only has a VGA port, so we bought a VGA connector but the compute and monitor would not connect to one another. After that I read multiple articles which said that we should use a USB 3.0 to VGA connector to go from his pc to the VGA cable and then to the second monitor, but this still did not solve the problem. If anyone could give us any help it would be greatly appreciated.

 

[Alabalcho]

Your AIO has following ports, as per your link:

Back I/O Ports
3 x USB 2.0, 1 x HDMI-In, 1 x HDMI-Out
1 x VGA(D-Sub)-In, 1 x RJ45 LAN, 1 x TV Jack (Optional)

So, the best way to get second monitor connected is to use HDMI-Out connector. Since your second monitor has VGA only, you have two options:
- get a new monitor
- get an HDMI-to-VGA adapter. If you go this direction, make sure you get an adapter with proper "direction", HDMI in, VGA out

Getting USB-to-VGA adapter adds another GPU to your PC, and is an overkill. I don't know what was wrong with your setup.