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User Ron Lupo Asked:

Can a 12VDC 1000mA power adaptor from a Linksys WRT54G router be used for a Linksys WRT400N router?

Our Technician Answers:

Yes, the 12V 1 Amp power supply can power all Linksys routers.

User Dan Asked:

What is the difference between the standard 12v power supplies and the UL listed power adapters?

Our Technician Answers:

Hi Dan... The UL listed power supply adapter receives much more rigorous quality testing. Each of it's components is approved for quality and resistance. The standard power supply adapters which are great for home or consumer use have a 1 year warranty. The UL listed 12V power supplies are ideal for use in critical application, medical uses, sensitive equipment, where failure is not an option. They have a 2 year warranty.

User Saumya Asked:

Do I have to match the exact Amperage of the power supply I order, like I have to match the Voltage ?

Our Technician Answers:

No. Voltage is not like Amperage. Although the V in your specs must match exactly, the Amps (A) of a power supply represents a MAXIMUM LOAD. The Amp rating of the adapter you order has to be equal to, or GREATER than the rating of your device. A 5 Amp power supply can power any device from 0A up to 5A.