As you can see, it’s just narrow enough to leave one row open on the breadboard for jumper wires. You may be thinking that there’s a lot missing from this board, but we disagree. Obviously ...

These modules can be plugged into a breadboard and wired up with jumper wires, or connected directly to the same rows as the microcontroller module.

(Without Microcontroller Board) Breadboard and Power Supply Modules-Include various LEDs, resistors, buttons, capacitors, a few transistors and diodes etc. With jumper wire and Male-female dupont ...

Instead of fussing with jumper wires, the Pi Hub Development ... It also has an option to add more using a breadboard once ...