Power / Connectors & Adapters

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 on one end, and a screw terminal block on the other. The terminals are labeled with positive/negative assuming a positive-tip configuration (which is the most common)

This product is a 3-in-1 cable. By itself, it can act as an extension cord for any 5.5/2.1mm DC power cable. The heavy 24 AWG wires can handle up to 5A. You can also cut it half to make two barrel cables (one plug and one jack). This will allow you to connect a classic 'wall wart' to a breadboard or PCB without having to solder in a bulky power jack. Or you can use...

This power jack is designed to easily attach to a panel up to 8mm thick (0.315" or 5/16") and fit 2.1mm power plugs snugly and securely. Perfect for adding a power connector to your project enclosure. We like this jack in particular for its long body (so you can use it on thicker wooden panels), sturdy PCB spacer with 3 easy-to-solder eyes and 'forgiving' plastic lip...

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 DC plug on one end, and a screw terminal block on the other. The terminals are labeled with positive/negative assuming a positive-tip configuration (which is the most common)

By popular demand, we now have a handy extension cord for all of our JST PH-terminated battery packs (such as our LiIon/LiPoly and 3xAAA holders). One end has a JST-PH compatible socket, and the other end has a matching plug. Between the two, 500mm of color coded wire. Handy for wearable projects where you may want the battery pack far from your Flora but useful in...

Outdoor enthusiasts rejoice! We now have standard 5.5/2.1mm DC power cable sets in a waterproof variety. These cable sets are ideal for projects that must weather the weather: dust, water, rain, snow, tornado (not volcano proof!). They are a little bulkier than normal DC jacks because of the o-ring and removable over-screw. The o-ring is what makes the waterproof...

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 plug into one end, and behold, four identical plugs to use! We like the rugged molding on these adapters, and they're really handy when you have a project with multiple pluggable devices. 4-Way 2.1mm DC Barrel Jack Splitter...

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 plug into one end, and behold, two identical plugs to use! We like the rugged molding on these adapters, and they're really handy when you have a project with multiple pluggable devices. 2-Way 2.1mm DC Barrel Jack Splitter...

Turn a wall adapter into a mini power supply with this incredibly useful adapter. A high quality molded 2.1mm DC barrel jack is brought out to red (center positive) & black (ring negative) alligator clips. Works with just about every wall adapter, good for about 2 or 3 Amps of current and up to 24VDC. 2.1mm DC Barrel Jack to Alligator Clips (1:28)

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 (center positive) & black (ring negative) alligator clips. 2.1mm is a near-standard for electronics, so with this adapter you can easy clip and connect packs and wires to a power jack. Good for about 2 or 3 Amps of...

A simple 2-pin connector that is compatible with the "JST PH 2-pin" connector - perfect for soldering to the bottom of our 3.3V Logic Trinket and 5V Logic Trinket! These mate perfectly with all our 1-cell LiPoly and LiIon batteries as well as our 6V coin cell holder and 3xAAA battery pack. We also have simple JST pigtails that mate with this connector. Note: This...

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 adapter for anything else that has a 1.7mm DC jack, such as a PSP.

A simple 2-pin connector soldered onto a breadboard-friendly breakout. This is compatible with the "JST PH 2-pin" connector. Mates perfectly with all our 1-cell LiPoly and LiIon batteries as well as our 6V coin cell holder and 3xAAA battery pack. We also have simple JST pigtails that mate with this connector.

The premise of this MicroUSB Plug to 5.5/2.1mm Jack adapter is simple. There's a MicroUSB plug on one end and a 5.5mm/2.1mm DC barrel jack with center positive polarity on the other. This allows you to connect one of our 5V 2 Amp, 5V 4A or 5V 10 Amp adapters to something that expects to connect to 5V USB. We also have a shorty adapter-without-cable version Since this...

These 2-wire cables are 16cm long and come as a set. One side has a 2-pin JST SM type connector plug on the end. The other side has a matching 2-pin JST SM type receptacle connector. They are good for whenever you have 2 wires you want to be able to plug and unplug. We like the solid and compact nature of these connectors and the latch that keeps the cable from...

This 4-wire cable is a little over 150mm / 6" long and fitted with JST-SH female 4-pin connectors on one end and premium Dupont male headers on the other. Compared with the chunkier JST-PH these are 1mm pitch instead of 2mm, but still have a nice latching feel, while being easy to insert and remove. This cable can be used with Qwiic boards, to easily connect sensors...

This 4-wire cable is a little over 150mm / 6" long and fitted with JST-SH female 4-pin connectors on one end and premium female headers on the other. Compared with the chunkier JST-PH these are 1mm pitch instead of 2mm, but still have a nice latching feel, while being easy to insert and remove. This cable can be used with Qwiic boards, to easily connect sensors and...

We use 2 pin JST PH connectors for all our battery packs, and if you want to put a board in series, like our LC709203F Stemma QT battery gauge, this cable will be very handy! Both ends have a JST PH 2mm pitch 2-pin plug. Between the two, 100mm of color coded wire - red for power, black for ground. No more soldering two pig-tails together! This is an A-A cable, that...

This 4-wire cable is a little over 400mm / 15.7" long and fitted with JST-SH female 4-pin connectors on both ends. Compared with the chunkier JST-PH these are 1mm pitch instead of 2mm, but still have a nice latching feel, while being easy to insert and remove. This cable can be used with Qwiic boards, to easily connect sensors and drivers to boards with 0.1" socket...

This 4-wire cable is a little over 150mm / 6" long and fitted with JST-PH female 4-pin connectors on each end. These types of JST cables are commonly found on small rechargeable battery packs, RC receivers and transmitters, tiny cameras, and other small electronic devices We're using these to connect to STEMMA boards, the connector is compact yet durable, stays...

This 4-wire cable is a little over 300mm / 11.8" long and fitted with JST-SH female 4-pin connectors on both ends. Compared with the chunkier JST-PH these are 1mm pitch instead of 2mm, but still have a nice latching feel, while being easy to insert and remove. This cable can be used with Qwiic boards, to easily connect sensors and drivers to boards with 0.1" socket...

This cable will let you turn a JST PH 4-pin cable port into 4 individual wires with high-quality 0.1" female sockets on the end. We're carrying these to match up with any of our boards with 'STEMMA' connectors on them such as the Hallowing or Trellis M4. Can also be used with any STEMMA breakouts! This one has socket pins, so it could be used to connet to wires or...

This cable is a little over 100mm / 4" long and fitted with JST-GH compatible 6-pin connectors on either end. We dig the solid and compact nature of these connectors and the latch that keeps the cable from coming apart easily, and the wires are even color coded! These would go great with SEN54 or SEN55 all-in-one air quality sensor modules from Sensirion For more...

This cable will let you turn a JST PH 4-pin cable port into 4 individual wires with high-quality 0.1" male header plugs on the end. We're carrying these to match up with any of our boards with 'STEMMA' connectors on them such as the Hallowing or Trellis M4. Can also be used with any STEMMA breakouts! This one has header pins, so it could be used to connect to socket...

If you're a DIY enthusiast who likes to micro-manage your project's connections, here is a 10-pack of some micro JST SH connectors! They're solid plastic with 4 x 1mm pitch through-hole mounting tabs. In an SMT line you can just paste over the through holes and the pads will solder in place. This connector can be used with Qwiic boards and cables, to easily connect...

This convenient adapter lets you plug a USB Type C 3.1 5V cable into something with a 5.5mm / 2.1mm DC barrel socket. Works great with any device or cable with 5.5mm / 2.1mm DC barrel socket. Since USB C is reversible you can flip it for a left angle or right angle. You'll get 20V DC output, at up to 3A (or whatever the power adapter can do) Please Note: The adapter...

By popular request - we now have a way you can turn on-and-off Lithium Polymer batteries without unplugging them. This PH2 Female/Male JST 2-pin Extension Cable comes with an in-line Switch - click once to turn on, click again to turn off. It's super handy especially in tandem with our JST-terminated battery packs or LiIon & LiPoly batteries/accessories/chargers!...

If you need to add a panel-mount connection for DC power, but don't have the time or ability to cut a custom oval or square hole, this Round Panel Mount 5.5mm/2.1mm DC Barrel Jack Extension Cable is the easiest and fastest way to panel-ify your existing project. The outer flange is 30mm in diameter, and the threaded part is 23mm diameter, so you can drill a 1" hole...

This cable will let you turn a JST PH 3-pin cable socket into 4 individual tinned wires. These are great to match up with our JST 4-PH cables, for extending and connecting sensors or LEDs, and the wires are even color coded! Black for GND. Red for V+. White for SDA. Green for SCL. Even though this is a JST PH connector, it will fit into a Seeed Grove connector and...

If you're fancying to connect to the debug port on a Pico WH, or the two ports on a Pico Debug Probe or anything else with a JST SH compatible 3-pin connector, this cable will do the trick. It has a 1mm pitch JST SH connector on one end, and 0.1" pitch socket connectors on the other. Note that the colors we got are somewhat matchy with our '2mm PH' sized STEMMA...

"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 0.4mm difference just wont work....what am I going to do!?" ENTER The Adapter. This 2.1mm to 2.5mm adapter is the best way to adapt a 2.1mm plug so that it will fit into a 2.5mm jack. Remember that this will fit into a device...

If you'd like to make a connection to a board or breakout with Seeed Grove connection, this 100mm long 4-wire cable is fitted with a Grove connector and four bare wires. Please note you will have to watch for voltages on the power/signal pin when using 3V-only sensors, because Grove boards that are 5V logic like many Arduino UNO-compatibles. The colors are: Black for...

This convenient 3.8mm/1.3mm or 3.5mm/1.1mm or 1.3mm DC to 2.1mm DC adapter cable lets you plug one of our solar panels into our optimized Solar Lithium Ion/Polymer charger! 2.1mm inner diameter (5.5mm outer diameter) is the most common type of DC plug, but you can use this adapter for anything else that has a 1.1 or 1.3mm ID (3.5-3.8mm OD) DC jack! The adapter has...

This convenient 3.5mm/1.1mm or 5.5mm/2.1mm DC Jack adapter lets you plug one of our solar panels into our optimized Solar Lithium Ion/Polymer charger! 2.1mm inner diameter (5.5mm outer diameter) is the most common type of DC plug, but you can use this adapter for anything else that has a 1.1mm ID (3.5 OD) DC jack. This adapter lets you convert something with a 3.5mm...

Designing boards with plug-n-play connectivity is a snap, with STEMMA connectors. Here's a pack of 10 of our favorite 2mm pitch connector which are compatible with the JST PH 4 pin. These are the horizontal style. You can use these with any of our JST PH 4-Pin compatible / STEMMA cables. They're not STEMMA QT compatible (those use the smaller JST SH compatible)....

Totally 220 pieces, this 2.0mm Pitch Kit with JST-PH Connectors is a must-have for your workstation. You'll have enough sockets and plugs to fuel your maker tendencies for days on end! These connectors are really common in electronics, we use the 2 pin ones for our batteries and battery packs. The 3 pin and 4 pin are used for STEMMA connectors. The 4 pin size is even...

Totaling 560 pieces, this 2.5mm Connector Kit with JST-XH Compatible Connectors is a must-have for your workstation. You'll have enough sockets and headers to fuel your maker tendencies for days on end! These connectors are really common in electronics, we use the 2 pin ones for our arcade quick-connects. Since they are 2.5mm they are very close to and will fit 0.1"...

As technology changes and adapts, so does Adafruit, and speaking of adapting, this adapter has a 2.1mm barrel jack socket and a USB C plug - you could use this to power a USB C device from a common wall adapter. USB C is the latest industry-standard connector for transmitting data and power. Like Lightning and MagSafe cables, USB C has no up or down orientation. Plug...

Once in a while, we find products with center negative DC power jacks, and they really make us mad because who keeps around both positive and negative polarity versions of every voltage? Now, hopefully, USB Power Delivery will solve this long term, but until then, this 2.1mm DC polarity reversal adapter will have to do! Usage is simple: plug into any 2.1mm/5.5mm DC...

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 will come with the same standard 5.5mm / 2.1mm DC barrel jack that is most common on many devices. What if you'd like to power something different, say some old synthesizer or a laptop or some other whats-it? Basically,...

If you're a DIY enthusiast who likes to micro-manage your project's connections, here is a 10-pack of some micro 1mm pitch connectors that are JST SH compatible! They're solid plastic with 4 x 1mm pitch through-hole mounting tabs. In an SMT line you can just paste over the through holes and the pads will solder in place. These connectors can be used with Qwiic boards...

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 with center positive polarity on the other. This allows you to connect one of our 5V 2 Amp, 5V 4A or 5V 10 Amp adapters to something that expects to connect to 5V USB. We also have a cable-version of this, but this one is...

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 MagSafe Adapter is simple. There's a MagSafe plug on one end and a 5.5mm/2.1mm DC barrel jack with center positive polarity on the other. This allows you to connect a 15-20VDC power supply to something that expects to connect...

This power jack is designed to fit 2.1mm power plugs snugly and securely. Perfect for adding a power connector to your project. We went for the more expensive "thin pin" type which snap into breadboards or perfboards. They will work where "thick pin" types go also, just need a little more solder to fill up the larger pads. The pin at the end of the jack is the...

This convenient adapter lets you plug a USB Type C 3.1 5V cable into something with a 5.5mm / 2.1mm DC barrel socket. Works great with any device or cable with 5.5mm / 2.1mm DC barrel socket. Since USB C is reversible you can flip it for a left angle or right angle. You'll get 5V DC output, at up to 3A (or whatever the power adapter can do)

This convenient adapter lets you plug a USB Type C 3.1 5V cable into something with a 5.5mm / 2.1mm DC barrel socket. Works great with any device or cable with 5.5mm / 2.1mm DC barrel socket. Since USB C is reversible you can flip it for a left angle or right angle. You'll get 12V DC output, at up to 3A (or whatever the power adapter can do)

This convenient adapter lets you plug a USB Type C 3.1 5V cable into something with a 5.5mm / 2.1mm DC barrel socket. Works great with any device or cable with 5.5mm / 2.1mm DC barrel socket. Since USB C is reversible you can flip it for a left angle or right angle. You'll get 9V DC output, at up to 3A (or whatever the power adapter can do)

If you're fancying to connect to the debug port on a Pico WH, or the two ports on a Pico Debug Probe or anything else with a JST SH compatible 3-pin connector, this cable will do the trick. It has a 1mm pitch JST SH connector on one end, and 0.1" pitch plug connectors on the other. Note that the colors we got are somewhat matchy with our '2mm PH' sized STEMMA cables,...

Designing boards with plug-n-play connectivity is a snap, with STEMMA connectors. Here's a pack of 10 of our favorite 2mm pitch connector - which are compatible with the JST PH 4 pin. These are the vertical style. You can use these with any of our JST PH 4-Pin compatible / STEMMA cables. They're not STEMMA QT compatible (those use the smaller JST SH compatibles)....

Designing boards with plug-n-play connectivity is a snap, with STEMMA connectors. Here's a pack of 10 of our favorite 2mm pitch connector which are compatible with the JST PH 3 pin. These are the horizontal style. You can use these with any of our JST PH 3-Pin compatible / STEMMA cables. They're not STEMMA QT compatible (those use the smaller JST SH). We also carry...

Designing boards with plug-n-play connectivity is a snap, with STEMMA connectors. Here's a pack of 10 of our favorite 2mm pitch connector which are compatible with the JST PH 3 pin. These are the vertical style. You can use these with any JST PH 3-Pin or Compatible / STEMMA cables. They're not STEMMA QT compatible (those use the smaller JST SH compatibles). We also...

If you have a project where you'd like to be able to detach the wiring, this wire will fit the bill. Its a JST 2.5mm 'free hanging' cable assembly that latches strongly. One wire is marked with a white dashed line. You can't plug these in backwards. This is the matching connector to the inverter. It is required to connect EL wire to the inverter! 0.1" (2.54mm) pitch...

If you have a project where you'd like to be able to detach the wiring, this wire will fit the bill. Its a JST 2.5mm 'free hanging' cable assembly that latches strongly. One wire is marked with a white dashed line. You can't plug these in backwards. We use these mostly for EL wire. This is the same connector as is on the inverter. It's useful if you're making a...

This adapter will let you plug into a US 2-prong power adapter in the following locations: Germany, Austria, Italy, the Netherlands, Belgium, France, Spain, Portugal, Denmark, Norway, Sweden, Finland, Greece, Turkey, Israel, Poland, the Czech Republic, Slovakia, Hungary, Rumania, Bulgaria, and Russia. Also used in the Middle East, most of Africa, South American and...

This adapter will let you plug into a US 2-prong power adapter in the following locations: Bahrain, Bangladesh, Belize, Bhutan, Channel Islands, China, Cyprus, Dominica, Falkland Islands, Gambia, Ghana, Gibraltar, Grenada, Guatemala, Guyana, Hong Kong, Indonesia, Iraq, Ireland, Isle of Man, Jordan, Kenya, Kuwait, Lebanon, Macau, Malawi, Malaysia, Maldives, Malta,...

This adapter will let you plug into a US 2-prong power adapter in the following locations: American Samoa, Argentina, Australia, China, El Salvador, Fiji, Guatemala, Kiribati, Nauru, New Zealand, Panama, Papua New Guinea, Saint Vincent and the Grenadines, Tajikistan, Tonga, Uruguay-- and also the city of Okinawa, Japan. Compatible with all the power adapters Adafruit...

If you own a MacBook, you'll recognize this little friend. The premise of this 2.1mm DC Barrel Jack to 2nd Generation MagSafe Adapter is simple. There's a MagSafe plug on one end and a 5.5mm/2.1mm DC barrel jack with center positive polarity on the other. This allows you to connect a 15-20VDC power supply to something that expects to connect to 2nd gen. MagSafe....

"HURRY, FRANK, THERE'S TOO MUCH POWER! We'll have to cut the circuit before this reactor goes up in smoke!" This simple but effective product is a solution to all your accidental-tourist-stuck-in-a-nuclear-power-plant-that-just-happens-to-be-right-above-a-now-active-volcano problems! Or just something without an off-switch. Say you have a nice, elaborate setup for...