I ordered this Power Supply Module for Arduino Breadboard, the First, because it was very cheap and for the second, because I wanted to gain even initial experience with Arduino and thus no quality module need. The module arrived within the stated delivery time after about 3 weeks and is neat and clean processes. The deduction of points there, because the module only in a small plastic bag with shipping label was packed and by mail order all the lower connector pins were bent.
Conclusion: for 1.50 and free shipping can not sue you.