20cm Male to Male Jumper Wires Breadboard Cables for Arduino ESP32 (40 PCS)

20cm Male to Male Jumper Wires – 40 PCS (Breadboard Dupont Cables)

These 20cm Male-to-Male Dupont Jumper Wires are the standard breadboard cable for connecting tie points, linking circuit sections, and powering components across your prototyping board. The 40-piece multi-color set is a must-have for any electronics toolkit.

Key Specifications

• Length: 20cm (200mm)
• Connector Type: Male to Male (M-M) Dupont
• Quantity: 40 pieces
• Pitch: 2.54mm (0.1") standard
• Wire Gauge: 26 AWG flexible stranded copper
• Insulation: PVC / flexible jacket
• Color: Multi-color assortment

Compatibility & Use Cases

M-M jumper wires plug directly into breadboard tie points and male-header sockets. Fully compatible with Arduino, ESP32, Raspberry Pi, NodeMCU, and all standard 2.54mm pitch boards. Common applications include:

• Breadboard circuit wiring and power rail connections
• Connecting components across breadboard sections
• Linking two breadboards in large prototype builds
• Rapid IoT circuit assembly and testing
• STEM kits and beginner electronics projects

Color coding makes power, ground, signal, and data lines instantly distinguishable, speeding up debugging and documentation.

Frequently Asked Questions

What are male to male jumpers used for?
They are the classic breadboard wire. Both ends push into breadboard holes or female sockets, perfect for wiring rows, power rails and connecting an Arduino UNO's headers to your breadboard circuit.

How many wires are included?
40 wires on a peel-apart ribbon in assorted colours. Use red and black for power and ground and other colours for signals to keep circuits easy to trace.

Will they stay firm in the breadboard?
Yes. The pin ends are sized for standard 2.54mm breadboard contacts and seat snugly, so connections stay reliable while you build and debug.

What is the difference from male to female wires?
Male to male joins two sockets (like breadboard rows). Male to female joins a socket to a set of pins, like a sensor module's header. Most workbenches keep both types handy.

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