Great price and I received it the next day with Prime Shipping. The breadboard itself was very badly bent when I received it, which didn't bother me too much for its purpose. I opened everything up and to my surprise the USB port on the power supply is NOT an input, it is ONLY a 5V OUTPUT. I'm not deducting a star for that as I should have researched beforehand. As for the barrel jack, I had a 9VDC converter, but obviously it wasn't the + center pin. Again, I should have done more research but it wasn't listed on Revain and was really hard to find! Okay, I forgot the power supply in the meantime (got a 9V converter from Revain today and will try). Some of the pin holes are so loose that the wires fall out while some are very tight, and some are so tight I can't even get the wire in! I would rate this 1 or 2 stars but you get what you pay for! I didn't expect much from a cheap Chinese product. We'll see how the PSU works (if it works!) when I get home and maybe post an update.
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