The DIY Prototype PCB Board HR0378 (9 × 15 cm) is a general-purpose copper board for electronic constructions and circuit testing. It features 2.54 mm holes (standard spacing), ideal for through-hole components such as resistors, LEDs, transistors, ICs, and headers.

Its surface is made of phenolic resin material with copper cladding for good conductivity and heat resistance during soldering.

Suitable for DIY projects, prototype circuits, educational applications, or repairs, it offers a stable base for experimentation and testing of electronic components.