30cm Male-to-Female Jumper Wires, 40-Piece Set

30cm male-to-female jumper leads

This set is listed as 40 male-to-female jumper wires, each 30cm long. Each lead has a male pin at one end and a female socket at the other, allowing a compatible pin header to connect to a suitable female header or breadboard contact.

Longer connections between project sections

The 30cm length provides additional reach between compatible headers and project sections. Route the wires neatly and support them so their weight does not pull against a header.

The leads can be used for suitable low-power circuits involving microcontrollers, sensors and modules. Mechanical fit does not establish electrical compatibility: check the signal voltage, polarity and pin functions for both connected devices.

Listed connection details

• Length: 30cm.
• Quantity: 40 individual leads.
• Ends: male to female, pin to socket.
• Header spacing: compatible with suitable 2.54mm headers.
• Current rating, conductor gauge and contact plating: not verified here.

This page targets the 30cm set. If the catalogue or order details display multiple lengths, confirm that the supplied set is 30cm before purchase. Compatibility with Arduino-style projects does not mean these wires are manufactured or certified by Arduino.

Wire a prototype carefully

Disconnect power while changing connections, check the header pinout and avoid exposed pins touching adjacent conductors. These leads do not provide voltage regulation or logic-level conversion.

No mains-voltage or high-current rating is established. Do not use them for motor supply paths, battery power connections or another load requiring rated power wiring. For another project layout, compare 10cm male-to-female jumper wires or 20cm male-to-female jumper wires.

Frequently asked questions

Are both ends female?

No. Each lead has one male end and one female end.

Will the wires work with every development board?

No universal fit is guaranteed. Check header spacing, contact style and electrical requirements.