SHOP NOW EDUCATOR? ENGINEER? HOBBYIST?We have all your prototyping needs in one place. SHOP NOW FEATURED PRODUCTS NEW PRODUCTS SALES Components 1/4W Assorted Resistor Kit $13.85 Add to Cart Out of stock Raspberry Pi Raspberry Pi 4 Model B (4GB) $88.75 Read more Switches & Relays 2 Channel 5V 10A DC Relay Module $9.50 Add to Cart 9V Batteries 9V Battery Snap with DC Barrel Plug $2.00 Add to Cart Tools 40W General Purpose Soldering Iron $9.50 Add to Cart LEDs & LCDs 8 RGB WS2812 Addressable LED Ring $9.95 Add to Cart New Products Leadfree Solder – 5g $5.50 Add to Cart New Products DIGF-2002 Physical Computing (Spring/Summer) $152.98 Add to Cart Capacitors Polypropylene Film Capacitor (Axial) $4.00 Select options Capacitors Tantalum Capacitor $2.00 Select options Capacitors 10F 2.5V Super Capacitor $8.00 Add to Cart Capacitors Silver Mica Capacitor $2.00 Select options Sale! Power 5V 10A Switching Power Supply $69.50 $55.00 Add to Cart Sale! Position Tracking Sensors MMA7260 & LISY300 – 6 DOF Atomic IMU $124.99 $33.00 Add to Cart Sale! Sales 50: 1 37D Metal Gear Motor (12V 200RPM) $36.25 $24.50 Add to Cart Sale! Gear Motors 19: 1 37D Metal Gear Motor (12V 500RPM) $36.25 $24.50 Add to Cart Sale! Sales 100: 1 37D Metal Gear Motor (12V 100RPM) $36.25 $24.50 Add to Cart Sale! 3D Printing 20×4 Character LCD for RepRap Ramps 1.4 $28.00 $12.00 Add to Cart