MOBOREST 12V 5.5mm x 2.1mm DC Power Connector Adapter, 12/24V Male to Male Power Jack Socket for Led Strip CCTV Security Camera Cable Wire Ends Plug Barrel -2PCS

A couple years ago I bought a couple Plug Adapter Connectors from another supplier (don't remember brand) for relocating a surveillance camera using a pre made bnc cable extension connected to the existing RG59 siamese cable. Never had a problem with the power to this camera since installation. Last April I purchased these MOBOREST connectors to similarly extend another camera using bnc extension cable and I have had to make a gazillion trips to the attic to redo the power connections. The "fixed" connections last anywhere from a few hours to a week or more, but always fail. I have tried every possible way (other than tinning) to insert the stranded 18/2 into the connector's terminal slots and various levels of tightening the terminal's screws and have used all three of these Moborests hoping that one might work. Based upon my experience with fine power conductors in a previous life, I suspect ambient temperature changes might have something to do with the connection failures. I really hate to cut into the extension cable's power to make the connections with a simple splice but if this morning's "fix" again fails that will be my next attempt at a fix.FOLLOWUP -- Failed again. In examining the adapters slots, they both contain tiny bits of the AWG18 strands and in examining the conductor itself the several of the strands are broken. In playing with the conductor and the adapter on the well lit workbench instead of in the attic it is very difficult to insert the stranded AWG18 into the cleaned out slots. So, tried a different tactic. Took one short strand from a copper AWG8 conductor (appeared to be close to what a solid core AWG18 would be). and inserted it into one of the adapter's slots. Had to force it a bit, but it did go in and the slot's screw tightened it in securely. So, repeated this with the adapter's second slot. Then used wire nuts to connect the solid core conductors to the stranded conductors. Reconnected the plug and it worked. If this power connection fails I'll edit again.

I was able to connect any of my guitar pedal power supplies to the 9V battery eliminators/connectors I purchased here at Amazon as well. (amazon.com/gp/product/B07FCZZ5JF/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1)Several 9V battery devices I own and rely upon were not manufactured with power supply jacks. The two Amazon items joined together enable me to use the devices without the need for any batteries.

Damaged, assuming shipping damage.One end is squashed..I'll attempt to 'round and use'.Will update if functionality is damaged.

Received just as described. They connect perfectly and have had no problems. Quick delivery, too. Would buy again and from this seller.

Very simple fix when you forget to check the ends before pulling the wires. Honestly, I'm surprised the company that sold the security camera kit doesn't sell them; this has to happen a lot. Thanks for saving me from redoing it all!

I primarily bought these because I own a Blackmagic Pocket 4k camera and the power cable I bought for it to draw from my Power Supply required a a connection adapter. These work perfectly.

When you accidentally run your security system wires through a narrow attic and realize you need to rerun them, this is a better alternative.

Got this as my replacement part for an exhaust cutout valve was a male plug instead of a female. This adaptation piece made the fix work for me

Very nice to receive a product that is exactly as described in the advertising. Perfect fit on the cable pin. So 5.5mm x 2.1mm is exactly what was provided.

très bon