EDGELEC 120pcs 10cm Dupont Wire Female to Female Breadboard Jumper Wires 3.9 inch 1pin-1pin 2.54mm Connector Multicolored Ribbon Cables DIY Wires Length 10 15 20 30 40 50 100cm Optional

A tidy, reliable set of jumpers for everyday prototyping

I’ve kept a lot of pre-crimped jumper wires around my bench, and the set I reach for most frequently lately has been the Edgelec 10 cm female-to-female jumper wires. They’re simple, consistent, and come in a format that suits the way I prototype: three 40-wire rainbow ribbons you can peel into whatever width you need. If you work with breadboards, dev boards, or rows of 0.1-inch headers, this set covers a lot of ground without fuss.

What you get and how it’s built

You get 120 individual jumpers, arranged as three separable 40-pin ribbons. Each wire is 10 cm (about 3.9 inches) with standard 2.54 mm Dupont female housings on both ends. The conductors are 12-core copper with PVC insulation and the terminals are nickel-plated brass. In practice, that combination matters: the copper keeps resistance low for logic-level work, and the plating helps the contacts resist oxidation so the fit stays consistent over time.

The rainbow scheme cycles through 10 colors, which I find genuinely helpful for routing groups (power, ground, SDA/SCL, SPI lines) without needing extra labels. Because the ribbons tear cleanly, I can peel off a 3- or 4-wire group to match a sensor’s pinout in seconds. The housings themselves are the familiar single-pin Dupont shells—nothing exotic—which is exactly what you want for compatibility with breadboards, header pins, and breakout boards.

Fit and connection quality

The defining test for pre-made jumpers is how they feel when you plug them in: do they seat firmly, and do they stay put? On my breadboards and on standard 0.1-inch pin headers (Arduino Nano, ESP32 dev boards, and Raspberry Pi GPIO adapters), these make a snug, reliable connection. I don’t need to force them, but they don’t wobble either. That balance is important for debugging; flaky connections masquerade as logic errors, and these have spared me that pain.

The housings are “standard” length for single-pin female Dupont connectors. On dense builds where you have two rows of jumpers facing each other, the plastic shells can get a bit crowded. That’s true of most Dupont jumpers, but it’s worth noting if your build lives on a compact, tightly populated board or inside a small enclosure.

Flexibility and handling

At 10 cm, these are great for breadboard-to-breadboard and board-to-module runs without turning your project into a nest of spaghetti. The wire itself has a medium stiffness typical of PVC-insulated jumpers. It holds a curve reasonably well and doesn’t feel brittle. If you’re used to ultra-flexible silicone wire, this won’t be that—but for bench work, the modest stiffness actually helps with cable management and keeping traces where you route them.

Peeling the ribbons is painless. I’ve had other brands fray the insulation or deform the shell when torn; here, the edges stay tidy if you pull evenly. One habit that pays off: separate at the connector end first, then work your way down the ribbon. It reduces stress on the crimp and keeps the conductors neatly aligned.

Electrical performance in typical use

These are designed for low-voltage, low-current electronics. For logic, sensors, and small modules, they do exactly what they should. Signal integrity over 10 cm is solid for typical breadboard speeds—SPI, I2C, UART, GPIO toggling—provided you keep reasonable edge rates and avoid needlessly long, parallel runs of high-speed lines next to each other. For anything approaching RF work or very fast digital edges, you’ll want twisted pairs, controlled impedance, or shielded cables. That’s outside the mandate of Dupont jumpers, and not a knock on this set.

On current handling: I treat jumpers like these as signal wires or for light loads. They’ll handle small peripheral currents fine, but I don’t use them for powering motors, heaters, or LED strings. If I need more current, I keep the run short, use thicker wire, or a proper connector system.

Durability over repeated use

I’ve cycled a subset of these jumpers in and out of breadboards daily for several weeks. The spring force inside the female terminal hasn’t slackened in any noticeable way, and I haven’t had a crimp pull out. That’s not a guarantee you’ll never get a dud—pre-crimped jumpers vary—but the overall consistency here has been good.

A couple of practices help longevity:
- Pull on the plastic housing, not the wire, when removing.
- Avoid tight 180-degree bends right at the shell; give the insulation a few millimeters of gentle curve.
- If a wire will see motion, add a small piece of heat-shrink at the shell as a makeshift strain relief.

With those basics, I expect them to hold up for the typical lifespan of a prototyping set.

Where they shine (and where they don’t)

Strengths:
- The 3×40 ribbon format is genuinely useful. Peeling custom-width looms to match headers speeds up clean builds.
- Contact quality is consistent; the fit on breadboards and standard headers inspires confidence.
- Color-coding reduces wiring errors, especially for quick sensor hookups and bus runs.

Trade-offs:
- They’re not silicone-wire flexible. If you’re building inside tight, dynamic assemblies—or you love ultra-floppy wire—look elsewhere.
- Female-to-female only. That’s the right choice for many microcontroller headers, but you’ll need male-to-male or male-to-female jumpers for other scenarios.
- The standard shell length can feel tall in cramped spaces or when stacked across opposing pin rows.

Practical tips

• Reserve colors: assign red to VCC and black to GND, then stick to it. Future you will thank you.
• Peel in groups matching your pinouts (e.g., 4-wide for I2C + power/ground). Label the group with a bit of tape.
• For Raspberry Pi headers, use a 5- or 6-wide strip to keep related pins bundled and reduce accidental miswires.
• If you need a male end, plug a short 0.1-inch pin header stub into the female shell to create a quick male adapter.

Alternatives and context

I keep three categories of jumpers around: ultra-flexible silicone leads for moving parts, pre-crimped Dupont ribbons like these for general bench work, and hand-crimped custom leads for permanent or semi-permanent installations. The Edgelec set sits squarely in the “general bench work” slot. You can spend more for silicone-insulated sets if flexibility is paramount, or spend time crimping your own for bespoke harnesses. For most prototyping tasks, pre-made ribbons save time and reduce errors without meaningfully compromising performance.

Bottom line

The Edgelec 10 cm female-to-female jumper wires hit the right notes for day-to-day electronics work: consistent connections, useful color coding, and a ribbon format that makes neat, repeatable wiring easy. They’re not specialized cables, and they’re not trying to be. They’re dependable, tidy jumpers for breadboards, header-to-header links, and quick module hookups.

Recommendation: I recommend this set for anyone doing regular prototyping with 0.1-inch headers—Arduino, ESP32, STM32, sensor breakouts, and similar boards. The quality is solid, the format is versatile, and the short length keeps projects clean. If you need extreme flexibility, high-current paths, or different terminations, pair these with a silicone set or a male-ended kit. For everything else, this is a well-thought-out, reliable staple for the bench.