Adafruit

US$5.17
This microswitch has a 3" long wire lever actuator and three terminals. Sometimes called 'coin switches' - they're used in coin detectors. The terminals are along the bottom (the other microswitches have them on the sides).
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US$13.13
12 ultra bright smart LED NeoPixels are arranged in a circle with 1.5" (37mm) outer diameter. The rings are 'chainable' - connect the output pin of one to the input pin of another.
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US$5.17
Go 'cold splice' with these snap-able plastic splices for fast connections. Use with any 22-26 AWG solid core wire and slip them into the plastic splice so that they slide into the metal teeth. Then squeeze down with parallel-jaw or slip joint pliers - don't use needle-noses, they have too much angle and not enough force.
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US$3.42
Repair or design your very own audio cables with these nice and durable phono-jack connectors. This is a great jack to make your own cable with. it's made out of durable metal with a flexible, sturdy spring for strain-relief.
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US$1.32
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.
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US$2.63
Connect your own PCB to a Raspberry Pi B+ with this normal-height female header.
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US$12.17
It's an add on prototyping Pi Cobbler from Adafruit specifically designed for the B+ and Pi 2 that you can break out all those tasty power, GPIO, I2C and SPI pins from the 40-pin header onto a solderless breadboard. This will make "cobbling together" prototypes with the Pi super easy.
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US$8.67
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!
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US$5.25
5ft spool - Used along with the solder sucker to clean up soldering messes. Wick really comes in handy when soldering or desoldering surface-mount parts. Even if you don't have the best iron for SMT work, a bit of wick will fix it up.
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US$4.38

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.

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US$8.67
Each strand comes with 12 LEDs, approximately 5cm/2 inches apart for a 2 foot long strand of wire. At one end of the magnet wire, a double stranded-core wire is soldered on and heat-shrinked to protect it.
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US$3.28
Diffused 5mm tri-color LED with separate red, green and blue LED chips inside! Nice indicator, and fun to color-swirl. 60 degree viewing angle.
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US$10.42
This panel mount extension cable will allow you to extend an HDMI connection and secure it to an enclosure. Perfect for placing your Raspberry Pi in a secure box. Two M3 screws are used to attach the female socket end, 1"/25.4mm apart. Two hex-screws are included and the hex nuts are embedded inside the molded end. 
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US$13.92
Dimensions: 48x29x21mm. Panel cutout: 45.5mm x 26.5mm. Digit size: 14mm/0.56" high, green LEDs. Refresh rate: about 2 Hz. Power specifications: 4.5V to 30V DC measurements. 0.1V precision. 3-4mA draw. Green LED display. Reverse polarity protected.
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US$1.67
Red and black tinned wires with a 2-pin JST PH connector on the end. 4" / 100mm long. Matches up nicely with our Lipoly charger!
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