PHc 9 Volt 5 Amp Power Adapter, AC to DC, 2.1mm X 5.5mm Plug, Regulated UL 9v 5a Power Supply Wall Plug

I'm using this with a polarity reversing adapter to power a large guitar pedal board with the gigrig modular power accessories. for this, it is incredible. more power (mA) than i could ever use, and its nice and light, attached to the underside of my board with dual lock tape from 3M. If you want to avoid spending $130 for the gig rig branded generator, this is a great alternative

I bought this power supply to use with the Lego EV3 brick, so I don't have to keep buying batteries. It works well, puts out the specified voltage, and most importantly, it seems to be properly grounded and with a very well controlled, negligible AC ripple that is barely measured in the millivolt range.It's more expensive than other offerings out there, but some cheaply made power supplies can easily ruin your project with substandard quality power output.

All was well. The post office mishandled the delivery, but otherwise, satisfied with purchase.

GREAT AND ON TIME