All Products

SKU: DF-FIT0151

A screw-terminal adapter that converts a 5.5 × 2.1 mm centre-positive DC barrel jack connection to bare wire terminals. Plug in a barrel jack power supply on one end and connect the screw terminals to a breadboard, circuit, or project on the other — a simple way to add a standard DC power input w...

SKU: SF-PRT-10288

This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5x2.1mm, center-positive female barrel jack. If you have a power supply with a barrel jack and want to plug it into a breadboard, this might be the simple solution.

SKU: AF-368

A simple adapter that converts a 2.1 mm DC barrel jack to screw terminals, making it easy to connect a DC power supply to boards or projects that lack a DC jack. The terminals are labelled with positive and negative polarity, assuming a centre-positive configuration (the most common type). Key F...

SKU: DF-FIT0783

A DC 5.5×2.1mm female to Micro-USB male power adapter plug, allowing you to power Micro-USB devices from a DC barrel jack power supply. Useful for powering Raspberry Pi, LattePanda, phones, and tablets from existing DC supplies. Specifications Input (Female) – DC 5.5×2.1 mm barrel jack Output...

SKU: DF-FIT0881

A 28-piece universal DC adapter kit with 5.5 × 2.1mm female connectors converting to a variety of DC barrel jack sizes. Compatible with standard 2.5mm DC male plugs, this kit lets you power laptops, displays, stereos, and other devices when the original power connector doesn't match. Warning: T...

SKU: DF-FIT0784

A DC 5.5×2.1mm female to USB Type-C male power adapter plug, allowing you to power USB-C devices from a DC barrel jack power supply. Useful for powering Raspberry Pi 4/5, LattePanda, and other USB-C-powered boards from existing DC supplies. Also available in a Micro-USB version. Specifications ...

SKU: AF-2788

A DC barrel jack adapter cable that converts a 3.5/1.3 mm or 3.8/1.1 mm DC plug to the standard 5.5/2.1 mm DC barrel jack format. Internal spring contacts accommodate outer diameters from 3.5 mm to 3.8 mm, making it versatile across a range of small-barrel DC connectors. Key Features Wide Comp...

SKU: AF-5474

A comprehensive set of 30 barrel jack plug adapters that convert a standard 5.5mm / 2.1mm DC jack to a wide variety of other tip sizes. Perfect for powering devices that use non-standard barrel connectors from your existing DC power supplies, USB-C to DC cables, or battery packs. Each adapter pl...

SKU: AF-4287

A push-fit DC barrel jack adapter that converts a 3.5/1.1 mm DC plug to the standard 5.5/2.1 mm DC barrel jack format. Simply push it onto the smaller plug until it clicks into place — no soldering or tools required. Key Features Click-Fit Connection – Push onto the plug until it clicks secure...

SKU: AF-4536

A simple adapter that converts a standard 2.1 mm DC barrel jack into a USB-C plug, letting you power USB-C devices from common 5 V barrel-jack wall adapters. Plug it onto the end of your existing power supply and connect straight to a Raspberry Pi 4 or any USB-C device that runs on 5 V without US...

SKU: AF-2897

A simple adapter that sits inside a 5.5 / 2.5 mm DC barrel jack, allowing you to use a standard 5.5 / 2.1 mm barrel plug with it. Just insert the adapter into the device's 2.5 mm jack, then plug in your 2.1 mm power supply as normal. Key Features 2.5 mm to 2.1 mm Conversion – Adapts a 2.5 mm I...

SKU: AF-2727

This adapter cable converts a 5.5mm/2.1mm DC barrel jack power supply to a Micro USB plug, allowing you to power Micro USB devices from a standard barrel jack power adapter. The barrel jack end is centre-positive polarity. It works great for powering Arduinos, BeagleBones, Raspberry Pis, Android...

SKU: AF-3546

A passive adapter with a 1st-generation MagSafe plug on one end and a 5.5 mm / 2.1 mm DC barrel jack (centre-positive) on the other. It lets you connect a 15–20 VDC barrel-jack power supply to devices that use the original MagSafe connector — useful for bench testing, custom power setups, or repl...

SKU: AF-5607

A panel-mount DC barrel jack extension cable that lets you add a clean, professional power input to any enclosure — without cutting custom-shaped holes. The round flange means you only need a standard 1″ (25 mm) drilled hole. Unscrew the plastic nut, insert through the panel, and tighten. Done. ...

SKU: AF-6075 · MPN: ADA6075

A 5.5/2.1mm DC barrel jack mounted on a flexible, sewable base for wearable tech and fabric-based projects. The jack sits horizontally with red (positive) and black (ground) wires extending from the bottom for easy power connections. The soft rubber base can be sewn by hand or machine directly i...

SKU: SF-PRT-13126

This female barrel jack plug is great for adding a common connector to the end of wires. This jack is compatible with 5.5x2.1mm barrel connectors. The outer shell unscrews to reveal solder terminals and a crimp strain relief. The outer shell has strain relief as well.

SKU: AF-327

A 1.5-metre (5 ft) extension cable with a 5.5 / 2.1 mm barrel jack (female) on one end and a barrel plug (male) on the other. Heavy-duty 24 AWG wires handle up to 5 A, making it suitable for powering LED strips, Arduino boards, and other current-hungry projects at a distance. This cable also dou...

SKU: SF-COM-11707

Do you fear that your power may not be “far reaching” enough? How would another 6' work for you? Okay, so it doesn’t sound very dramatic, but sometimes an extra 6' of power cable is exactly what your project needs. Don’t hack apart a nice clean barrel jack connection just because it won’t reach, ...

SKU: DF-FIT0043

The second version of the 9V to Barrel Jack Adapter, now featuring a hard plastic battery snap for easier connection and disconnection. Plug a 9V battery into one end and connect the other to any device with a 5.5 × 2.1 mm centre-positive barrel jack. Key Features Hard Plastic Snap (V2) – Easi...

SKU: AF-1352

A simple 1-to-4 DC barrel jack splitter that lets you power four devices from a single DC power adapter. Features standard 5.5mm/2.1mm barrel connectors with rugged moulded construction. Plug your existing DC power supply into the input jack, and get four identical output plugs ready to connect ...