Prusa i3 MK3 の電源が熱々になる不具合で、日本向けの電圧アダプタを国内から送付してくれたもの。
STEP UP & DOWN TRANSFORMER
JOHSUN STU-500
made in China
带USB接口进口电器专用电源变压器STU-500W – 乐清中翔科技电气
https://www.johsun.cn/stdybyq/stu-500w
Imported electrical power transformer with USB interface STU-500W
Voltage ratio 220V: 110V
Rated power 500W
Cooling form dry
Whether to import or not
Article number js-180303
Moisture proof method
Frequency characteristics
Order number STU500
Power phase number
Cooling method
Brand Zhongxiang Technology
INPUT VOLTAGE SELECTOR
240V / 220V / 200V / 110V
INSTRUCTION MANUAL
INSTRUCTION
SPECIFICATION 500W
Measure 200x130x120 mm
Selector
Use 110V (100V) in Japan.
USB is not output 5V, for control something?
205V output Voltage.
New PSU
It looks like the original power supply unit.
They look like the same PSU.