Lsgoodcare 5.5 x 2.1 MM 5A DC Power Jack Socket Threaded Female Mount Connector Adapter with 3.94Ich 20AWG Cable + DC Barrel Jack Plug Male (5.5 x 2.1 MM)

These are metal, replaced the plastic one on my wife’s portable oxygen concentrator with a little modification to the way the plastic one this replaced was mounted. Excellent and sturdy when installed

Lsgoodcare 5.5 x 2.1 MM 5A DC Power Jack Socket: I replaced male and female DC power socket on a newly purchased and quickly damaged product. This product has a sturdy metal case and is much more robust than the socket it replaced. I like the leads on the female socket. That allowed a less "intricate" solder connection for a novice DIYer like myself. I only needed one, but now I have spares. So, I spent around $10 to repair a several hundred dollar new product with much less hassle and headache than dealing with product warranty/return or service call. Now that's a good deal!

Easy to use.

Been using these for various raspberry pi projects so I can use external linear power supplies. They work great for that task.

I use these quite a bit in my builds. 5.5 x 2.1mm is "standard" for most applications. 5 amps is "just enough" but they need to have thicker wires and use adhesive heat shrink on the solder points. Ended up having to put my own heat shrink on them for protection. Wires need to be 14 or 16 AWG vs 18 AWG.

I needed to make a junction box that would allow 4 12v dc leds to plugged and unplugged from a solar power system . The female plugs have threads that allowed me to drill 4 holes in electrical outlet cover to mount. Worked great.

Used on model train layout to connect power supplies to digital command and control stations. Works fine.

These parts actually fit together. I bought others and had to return them as they didn't fit. But these fill the bill. Thanks