Mini bread-shaped experimental board, 400 holes/830 holes, can be combined and spliced, suitable for electronic development DIY.

400 Points Solderless Breadboard & MB102 Breadboard 1. Product Introduction​ Both the 400-point breadboard and MB102 breadboard are self-locking solderless prototype breadboards, designed for electronic experiments, prototype development, and circuit debugging. They support repeated plugging and unplugging, with convenient wiring and reliable connection, making them essential tools for electronic enthusiasts and developers.​ 2. Model & Specifications​ 400 Points Solderless Breadboard​ •Number of Holes: 400 points​ •Structure: Middle signal area, two side power rails (positive and negative)​ •Dimensions: Approximately 83 × 55 × 10 mm​ •Application: Suitable for small electronic experiments with Arduino, ESP32, microcontrollers (MCU), and sensors​ MB102 Breadboard​ •Number of Holes: 830 points​ •Power Rails: Dual-channel positive and negative power buses (marked with red and blue)​ •Dimensions: Approximately 165 × 55 × 10 mm​ •Application: Suitable for complex circuits, comprehensive experiments, course design, and large-scale prototype development​ 3. Common Features​ •Solderless design, plug-and-play, reusable for multiple experiments​ •Built-in metal reeds ensure stable contact and good electrical conductivity​ •Compatible with 2.54mm pitch components, Dupont wires, sensors, and various development boards​ •Non-slip bottom design; multiple breadboards can be spliced together for extended use​ •Lightweight and compact, easy to carry and store​ 4. Usage Instructions​ 1.Insert the pins of electronic components into the holes of the breadboard gently.​ 2.Holes in the same vertical column are internally connected, suitable for transmitting the same signal or power.​ 3.The long strips on both sides are power rails, used to supply power to the entire breadboard.​ 4.Use Dupont wires to connect power supplies, components, and development boards for signal and power transmission.​ 5. Cautions​ •Do not plug or unplug components with excessive force to avoid damaging the holes or metal reeds.​ •Do not force multiple thick wires into a single hole, as this may cause poor contact or damage the breadboard.​ •Keep the breadboard away from high temperature, moisture, heavy pressure, and bending to ensure its service life.​ •This product is for experimental and testing purposes only; do not use it directly for power supply of finished products.​ •Clean the breadboard regularly to remove dust and debris, ensuring stable connection.