
The item came packaged neatly. I would have appreciated a drawing with hole locations but you get what you pay for.I haven't checked that it can actually put out 20A continuously, but the voltage output is stable.

UL Listed 8FT 9V 1.5A AC/DC Power Adapter - FCC Certified & Compatible W/ Many Models
22 Review

Female 7.4Mm X 5.0Mm To Male 4.5Mm X 3.0Mm DC Jack Adapter Power Connector Converter Cable For Dell HP Laptops And Computers
17 Review

UL Listed AC DC Adapter With Long 8.2 Ft Cord For Brother P-Touch Label Makers - Compatible With AD-24 AD-24ES AD-20 AD-30
28 Review

UL Listed 9V AC/DC Power Adapter For Arduino/Schwinn Bike A10 A20 A40 220 430 Elliptical Trainer/Crosley Cruiser CR8005A - Center Positive 5.5X2.1Mm Power Supply For UNO R3 - Only For Listed Model
23 Review