UK SUPPLIER, quick dispatch. 

Breadboard Power Supply Module 3.3V 5V for MB-102 Solderless Bread Board New dedicated power module.

The input voltage: 6.5-12 v (dc) or USB power supply
Output voltage: 3.3 V and 5 V
The maximum output current: < 700 ma
Two way up and down two independent control, can switch to 0 V, 3.3 V, 5 V
Onboard two sets of 3.3 V, 5 V dc output pin, convenient external leads to use.

Combined postage with an addition of 35p per item, £2 for overseas purchases.