Adafruit

We have a lot of power adapter packs in the shop - from 9V to 12V to 5V we even have an adjustable power supply like one of these. But all of them ...

If you've ever owned a 1st generation MacBook, you'll recognize this little friend. The premise of this 2.1mm DC Barrel Jack to 1st Generation MagS...

"Hrmph! All I have is a power supply with a 2.1mm plug and my doodly-whatsit has a 2.5mm jack. I keep trying to force the plug to fit but that 0.4m...

The premise of this MicroUSB to 5.5/2.1mm DC Barrel Jack Adapter is simple. There's a MicroUSB plug on one end and a 5.5mm/2.1mm DC barrel jack wit...

Quadruple your power adapters with this wonderfully simple 4-way power jack splitter. All you have to do is connect a standard 5.5mm/2.1mm sized pl...

Double up your power adapters with this wonderfully simple 2-way power jack splitter. All you have to do is connect a standard 5.5mm/2.1mm sized pl...

Turn any battery pack into a power supply with this incredibly useful adapter. A high quality molded 2.1mm DC barrel plug is brought out to red (ce...

We're carrying this adapter primarily to allow Chumby Hacker Board users to adapt our nice 5V @ 2A power supply to their CHB. But you can use this ...

If you need to connect a battery pack or wired power supply to a board that has a DC jack - this adapter will come in very handy! There is a 2.1mm ...

If you need to connect a DC power wall wart to a board that doesn't have a DC jack - this adapter will come in very handy! There is a 2.1mm DC jack...