840-Piece Assorted U-Shape Breadboard Jumper Wire Kit Build, prototype, and experiment with confidence using this comprehensive 840-piece breadboard jumper wire kit. Whether you're a student, hobbyist, or electronics enthusiast, this all-in-one assortment gives you the exact wire length you need for clean, organized breadboard connections every time. With 14 different lengths and 60 pieces per size, you'll never run short on the right jumper wire again. Made in Mainland China. Key Features 840 Pieces Total – 14 lengths × 60 pieces per size for a well-stocked supply 14 Length Options – 2mm, 5mm, 7mm, 10mm, 12mm, 15mm, 17mm, 20mm, 22mm, 25mm, 50mm, 75mm, 100mm, and 125mm U-Shape Pre-Formed Design – Fits cleanly and securely into standard breadboard holes for reliable contact Quality Materials – Rubber-insulated copper wire for excellent conductivity and durability Assorted Colors – Random color assortment helps you visually organize and trace circuit connections Low Voltage Rated – Suitable for low-voltage projects (below 75V DC / below 50V AC) 100% New & High Quality – Every wire in the kit is brand new and ready to use What's in the Box? 840 × U-shape pre-formed breadboard jumper wires 14 lengths, 60 pieces per length Specifications Quantity 840 Pieces Wire Lengths 2, 5, 7, 10, 12, 15, 17, 20, 22, 25, 50, 75, 100, 125 mm Material Rubber + Copper Wire Color Assorted (Random) Voltage Range Low Voltage – Below 75V DC / Below 50V AC Type U-Shape Pre-Formed Jumper Wire Country of Origin Mainland China Perfect For Arduino, Raspberry Pi, and microcontroller projects Electronics prototyping and circuit testing STEM education and classroom projects DIY electronics repair and tinkering Robotics and hobbyist builds Looking for more electronics and wiring accessories? Check out our ABEC-7 Carbon Steel Ball Bearings for 3D Printers & Electronics and our Smart Relay Switch & Automation Module for your next project. Frequently Asked Questions Q: Are these breadboard jumper wires compatible with standard breadboards? A: Yes! These U-shape pre-formed jumper wires are designed to fit all standard breadboards with 0.1" (2.54mm) pitch holes, making them universally compatible with Arduino, Raspberry Pi, and most prototyping boards. Q: What is the total number of wires included in this jumper wire kit? A: The kit includes 840 pieces total — 14 different lengths with 60 wires per length, giving you a comprehensive assortment of U-shape breadboard jumper wires for any project size. Q: Can I use these jumper wires for Arduino or Raspberry Pi projects? A: Absolutely. These jumper wires are rated for low-voltage applications (below 75V DC / below 50V AC), making them ideal for Arduino, Raspberry Pi, microcontrollers, robotics, and other hobbyist electronics projects. Q: What materials are the wires made from? A: Each wire features a copper conductor core for excellent electrical conductivity, covered with rubber insulation for safety and durability during repeated use.
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