I received 4 of them Butthe package was damaged. You could see the bottom pins sticking out of the envelope. There was even an excuse letter from out local mail delivery company and it had been repackaged in a plastic bag. After opening it up I had a few bend pins but After putting them rigth again it fitted my bread board. 3 work fine one had a bad on of switch so U need to remove or replace the switch. Btw it is one of the reasons I bought this version of a bread board power supply you can tuwn of the power with the push of a button. very cool. So I do thing they should pack it a little better but in the end 3 out of 4 work and the 4th I can fix easily.
A few (3 of them) arrived with broken switches but I bought 20 of them so I made out fine. They look to be of excellent quality.