The 12 Best 5.5 mm 2.1 mm Connectors (2023 reviews)

Best part: centropower 5.5 mm 2.1 mm connector costs reasonable and it is available to ship in 24 hours. These work great and it's very easy to extend low voltage wiring requiring barrel connectors this way. The wire holes have flex shims, which are a bit difficult to use, but otherwise good stuff. The connection of the wires into the plug keeps the wire separated. These are great because they're easy to wire, easy to secure using heat shrink tubing, and are a standard size used by lots of electronics.

The screw terminals on the male and female connectors hold the power wires for the led lights perfectly with a very nice electrical connection. It would be perfect with security cameras.

Why We Like This:

Easy to use and no soldering
Extremly handy for any diy project-oriented shop
Delivers what they promise

Best For making Extra Connections: MILAPEAK 5.5 mm 2.1 mm Connector

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Compared with other connector in this category, the milapeak 5.5 mm 2.1 mm connector has a convenient design. This product is perfect for a bunch of different projects. It brings the reliable, secure connection and rapid transmission. The connector is almost THE standard size for all wall-wart type power supplies, particularly the ubiquitous 12v variety. The pigtail wire is hardly warm, but the connectors are warm to the touch. The wiring is better and the quality of the jack plugs is better.

This is a much easier way to put external power to a board or breadboard. The connector is compatible with all cctv systems and other 2.1*5.5mm dc power devices like part lighting or led strips.

Why We Like This:

Useful for general purpose wiring and connecting
Plug and play easy to use and hook up lights
Easy connection to power supplies for all sorts of purposes

Best With center pin: MOBOREST 5.5 mm 2.1 mm Connector

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The moborest 5.5 mm 2.1 mm connector's material feels more premium than its price would suggest. It can plug a 2.1 x 5.5mm cctv camera dc power plug connector. It is used to adapt two male connectors/cords together when running power to fixtures and from DC power supply. It is perfect for adding an extension to your existing cable.

This is measured very precisely with a dial caliper. It is powered with a plug-in. It does connect and seals well. They are just adapters for attaching 2 male connectors together.

Why We Like This:

Perfect for when you forget to check the ends before pulling the wires
Space saving, grip treads help easy plugging and unplugging
Dc power plug with plastic construction and strain relief
Very convenient not needing to solder for a strong connection

Best For adding Powerpole Connectors: Gintooyun 5.5 mm 2.1 mm Connector

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We would, of course, be remiss if we didn't mention gintooyun 5.5 mm 2.1 mm connector for regular usage. This is strictly for low voltage applications. It is used for worn or damaged power cords, such as 12v 24v dc power supply equipment, led light strips, cctv security surveillance camera systems or low voltage application systems, etc. The round connector fits perfectly into the adapter. This only has a dc barrel connector on one side and no connectors on the other. The wire comes with enough to rerun the wires and have a spare for later.

The connector is extremely stubby and the grip around it very wide. If you are using this with a device that stays in one place, this is good.

Why We Like This:

You can run 5 amps on 16 gauge just fine
Great little cables for general use setting up dc plugs
Wiring of sufficient size to handle electrical load
Good, solid dc power cables with male barrel fittings

Best For Better solution: Daykit 5.5 mm 2.1 mm Connector

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Daykit is known for creating pragmatic and minimalist connector for people on the go, and its line of daykit 5.5 mm 2.1 mm connector definitely falls in line with that reputation. It is great for making quick disconnects for led lights. It comes with flame retardant / anti riot sun / antioxidant / anti-aging pvc plastic which is flexible and durable. It looks cleaner and it fits like a glove. The Dc power pigtail cable with high quality pure copper strands inside brings the reliable, secure connection and rapid transmission. It can be used as planned in a 12v led install, for attaching to end points as needed. It is compatible with all cctv systems and other 2.1*5.5mm dc power devices like part lighting or led strips. It makes the connection safe and secure.

Why We Like This:

Handy in planned and unplanned ways
Good investment for long term

Best For CCTV Security Camera: Lsgoodcare 5.5 mm 2.1 mm Connector

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The male end of the connector has very thing gauge wire. It will handle 4 amps and come with dust plugs to keep clean when not in use. The male connectors are solid and can take a good bit of abuse without getting bent or banged up. Pigtails are plenty long enough for cutting, splicing, and room for heat shrink.

The connectors are good and tight but the male end of the connector has very thing gauge wire. They also come with dust plugs to keep clean when not in use. It is compatible with 5.5 x 2.1 mm dc barrel jack panel mount connector female with cable &5.5 x 2.1mm dc pigtail cable male.

Why We Like This:

Delivers what they promise
Good investment for long term

Best For tight spots: Fancasee 5.5 mm 2.1 mm Connector

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The fancasee 5.5 mm 2.1 mm connector is the best convenient connector on the market today. This 90 degree right angle 5.5mm x 2.1mm DC power extension cable cord is widely used for IP camera cctv security camera surveillance standalone dvr led strip router invoice printer low voltage application system etc. It is great as an m12 heated jacket extension that allows relocation of the battery pack to the pocket. The shinny metal outside cylinder is 9 mm long. It is great for tight spots. There are definitely only two connection paths between the connectors. It is a simple, cost effective solution.

Why We Like This:

Great right angle power adapter for ubiquiti usg
Delivers what they promise

Best For various projects: Exgoofit 5.5 mm 2.1 mm Connector

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We would, of course, be remiss if we didn't mention exgoofit 5.5 mm 2.1 mm connector for daily purpose. These are the standard 12v connector and handy when you need a quick connection or to break-out a 12v connection. They are very nice and very convenient to use, just push the button and insert the wire. The clips block much of the space and only open so much. The connection is very sturdy. The quality is high and the barrel connector has a snug fit. The openings are large enough. It also adds the convenience of connecting and separating the wires easily when there is a need to disconnect or break-out a 12v connection. It's very easy to put together cables using these pieces.

Why We Like This:

Easy and quick connectors for low current dc projects
Positive and negative are very easy to identify
Great quality, snug fit, tight hold on the wires
Holds wires tight, quick and easy

Best With Power Cable: Qaoquda 5.5 mm 2.1 mm Connector

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The qaoquda 5.5 mm 2.1 mm connector is capable of outshining several other connector featured in this list in overall features in its price range.

Why We Like This:

Delivers what they promise
One of the new comers and featured product

Best For Home life: ULTRAPOE 5.5 mm 2.1 mm Connector

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The ultrapoe 5.5 mm 2.1 mm connector's high-end materials makes sure that it ages well with use. It is a large-scale enterprise company in the network and security monitoring industry, focusing on design, development, manufacturing, and sales. It is committed to providing "ultra" and "unique" products to global users.

The public barrel plug, the dc power supply extension line is made of 18awg pure copper, high. It is easy to connect and use with wp inextstation lights. The protective cover material of the power cable is environmentally friendly pvc, flexible and durable, it can be very good for riots, resisting aging, and long.

Why We Like This:

Works great with inextstation solid green and red wp lights
One of the new comers and featured product

Best For Current And signal Transmission: Vweicyy 5.5 mm 2.1 mm Connector

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Compared with other connector in this category, the vweicyy 5.5 mm 2.1 mm connector has a convenient design. This 18awg dc power tail cable provides a very good and reliable dc power connection. It comes with a tin solder, to weld and install and improve the welding. It is flexible and durable to add to that it is thick enough and good for. It is used for security system low voltage power. The wires are thick, with the red wire being the center pin connection. These are also useful to make adapters to other types of 12 volt connectors. It is ideal for current and signal transmission. It comes with a flame retardant / anti riot sun / antioxidant / anti-aging.

Why We Like This:

Features two wires on the other red black
Pvc plastic which is flexible and durable
Good tight connectors with ample wire size
Equipped with the corresponding number of heat-shrinkable tubes, it is very convenient to

Best For stranded Wire: Bqlzr 5.5 mm 2.1 mm Connector

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Next on the list, we've got yet another connector that manages to win our hearts. It's the bqlzr 5.5 mm 2.1 mm connector and it's widely considered as one of the best convenient connector you can buy. These work well for making your own arduino dc adapters. PVC sheath can protect internal conductor and provide flexibility for flexible cord to ensure long life.

Why We Like This: