# wrt300n power supply
**URL:** https://boards.straightdope.com/t/wrt300n-power-supply/524795
**Category:** Factual Questions
**Created:** [January 13, 2010, 5:13pm UTC](https://boards.straightdope.com/t/wrt300n-power-supply/524795 "2010-01-13T17:13:43Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@gonzomax](https://boards.straightdope.com/u/gonzomax)
#### Post date: [January 13, 2010, 5:13pm UTC](https://boards.straightdope.com/t/wrt300n-power-supply/524795/1 "2010-01-13T17:13:43Z")
My puppy chewed the power supply on my Linksys 300n router. I am trying to get a new one ,but the on line sites try to sell me a 12v 1 amp supply. The 300 requires a 12v 2 amp. I have been all over the net trying to get the right one. Who do the Dopers recommend I try ? I went to Newegg, Ebay and can not find the right one.
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### Author:  [@Machine\_Elf](https://boards.straightdope.com/u/Machine_Elf)
#### Post date: [January 13, 2010, 5:25pm UTC](https://boards.straightdope.com/t/wrt300n-power-supply/524795/2 "2010-01-13T17:25:54Z")
Allied Electronics. [Here’s their 12-volt power adapters,](http://www.alliedelec.com/search/searchresults.aspx?Ntt=12v&Ntk=Primary&i=9&Pst=power+adapter+&N=4294963796&sw=y&Ns=RetailPrice%7c0) cheapest on top of list. Third one is 2 amps. Connector may not match, just solder the one from your old unit.
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### Author:  [@Leaffan](https://boards.straightdope.com/u/Leaffan)
#### Post date: [January 13, 2010, 5:28pm UTC](https://boards.straightdope.com/t/wrt300n-power-supply/524795/3 "2010-01-13T17:28:41Z")
The [datasheet](http://downloads.linksysbycisco.com/downloads/WRT300N_ds.pdf) on the Cisco site states 12v 1A.
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### Author:  [@gonzomax](https://boards.straightdope.com/u/gonzomax)
#### Post date: [January 13, 2010, 5:43pm UTC](https://boards.straightdope.com/t/wrt300n-power-supply/524795/4 "2010-01-13T17:43:21Z")
> [@Leaffan](#):
>
> The [datasheet](http://downloads.linksysbycisco.com/downloads/WRT300N_ds.pdf) on the Cisco site states 12v 1A.
Strange. It says 12 v 2 amp on the cord. When I called Linksys ( a long process of being on hold to India) they said it was 12 v 2 amp. Now what do I do? I have a 1amp from an old router.
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### Author:  [@Leaffan](https://boards.straightdope.com/u/Leaffan)
#### Post date: [January 13, 2010, 6:03pm UTC](https://boards.straightdope.com/t/wrt300n-power-supply/524795/5 "2010-01-13T18:03:35Z")
> [@gonzomax](#):
>
> Strange. It says 12 v 2 amp on the cord. When I called Linksys ( a long process of being on hold to India) they said it was 12 v 2 amp. Now what do I do? I have a 1amp from an old router.
Ahh. I’m guessing the power rating of the router is 1 amp, i.e. it draws one amp _typically_. The power supply is over-rated to allow for surges, etc.
Your 1 amp supply will probably work OK, at least in the short term. It might get a bit hot, and have a reduced life, but I can’t see it causing any damage to the router. Give it a shot and report back.
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### Author:  [@gonzomax](https://boards.straightdope.com/u/gonzomax)
#### Post date: [January 13, 2010, 6:08pm UTC](https://boards.straightdope.com/t/wrt300n-power-supply/524795/6 "2010-01-13T18:08:01Z")
My son sent out for a new one. I plugged in the 1 amp til it comes. It seems to work ok. It is from the 150 router the 300 replaced.
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### Author:  [@Leaffan](https://boards.straightdope.com/u/Leaffan)
#### Post date: [January 13, 2010, 6:09pm UTC](https://boards.straightdope.com/t/wrt300n-power-supply/524795/7 "2010-01-13T18:09:12Z")
Cool.
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### Author:  [@HorseloverFat](https://boards.straightdope.com/u/HorseloverFat)
#### Post date: [January 13, 2010, 6:50pm UTC](https://boards.straightdope.com/t/wrt300n-power-supply/524795/8 "2010-01-13T18:50:59Z")
This wrt300n fact sheet lists 12v 1A for power:
[http://linksys.custhelp.com/cgi-bin/linksys.cfg/php/enduser/std\_adp.php?p\_faqid=3747&p\_created=1152086051](http://linksys.custhelp.com/cgi-bin/linksys.cfg/php/enduser/std_adp.php?p_faqid=3747&p_created=1152086051)
1A is a bit for a little router like this. Thats 12 watts of power. Perhaps its cutting it close if you are using all 5 ethernet ports and doing a lot of transfers all the time, but for typical use that 1A ps should be okay.
\>It says 12 v 2 amp on the cord.
You might have a different hardware revision that the one on the website. Looks like theres a v1 and a v2. Perhaps the engineers felt that some extra headroom was needed in one of the versions.