1. The hole pitch is 2.54mm, and it's compatible with IC with DIP package.
2. The IO port can be quickly and easily implement your ideas.
English Manual / Spec: No
Dimensions & Weight
Dimensions: 3.54 in x 2.24 in x 1.18 in (9 cm x 5.7 cm x 3 cm)
Weight: 1.41 oz (40 g)
1 x Expansion Prototyping Board