Here's a handy breadboard from BPS that starts 97x64mm (3.8x2.5"), but snaps into 1/4 that size (if you need it to).

We find it ideal for transferring breadboard circuits into something more permanent, and when it's proven, snap them apart and wire the sub-sections together in the final project.

Specifications

• Full size: 97x64mm (3.8x2.5")
• Snaps into 48x30mm (3.2x1.5") quadrants for easy separation
• Silkscreen lines showing pad connectivity
• 0.042" holes on 0.1" centers