12V 4A Adapter The parameters: AC input 100-240V 50 60Hz, DC output 12V 4A; wide voltage input, in line with global standards Please confirm the DC interface specifications you need: DC connector size 2.5mm inner diameter, 5.5mm outer diameter, cable length 90cm/2.95ft; all copper nickel-plated plug, standard safety input jack, good conductivity, wear-resistant and not deform , pass plug and unplug test, strong corrosion resistance Good safety performance and high reliability: 100% brand new products, adopting chip motherboard solution, more stable quality; high quality components, more stable performance Four protections and safety guarantees: over-voltage protection, over-current protection, short-circuit protection, over-heat protection; shipment after load aging test Please confirm the packaging and service: the package contains 1x12v 4a AC adapter and 1xAC power cable;