HLK-PM03 Hi-Link 3.3V 1A 3W AC To DC Power Supply Module

HLK-5M12 Hi-Link 12V 0.42A 5W AC To DC Power Supply Module

HLK-20M09 Hi-Link 9V 2.2 A 20W AC to DC Power Supply Module 

HLK-PM01 AC-DC 220V to 5V 0.6A 3W Step Down Buck isolated power supply module Hi-Link

5A XL4005 DC-DC Adjustable Step Down Module Power Supply Converter

LM2576 Ultra Compact DC-DC Step-Down Adjustable Power Module

DC-DC USB 0.9V-5V to 5V Boost Step-up Power Supply Module

Power supply Adapter 9V-1A for arduino dedicated

5V 3A for Raspberry pi 3

Breadboard Power Supply Module 5V/3.3V For Arduino

5A XL4015 DC-DC Step Down Adjustable 4-38V Power Supply Module LED Lithium

LM2596 DC-DC Step Down Adjustable Power Supply