Mark, I had a similar question when shopping for a power supply at Radio Shack to replace a dead one for a printer. The amperage rating of a power supply represents the maximum current that it can provide. So as long as it's greater than what the total current draw of all attached devices will be, then it will work. If you think of it, each circuit in your house can provide 20-40 amps, though individual items connected to those circuits generally come nowhere near that much current need.
By the way, when I was at Radio Shack, the guy I spoke to gave me the wrong info about this. Ken > Dear List, > > Just last week as I was playing with switching between my new > lightweight On the Go Firewire hard drive from OWC (bus powered for S-900, > power supply for power book) and the older Mercury Elite Pro (much heavier, > non portable, power supply only) the power supply on the Mercury went. I > fortunately have another drive of this type with the same power supply, but > it cost twenty five dollars to replace it. There are various variable power > supplies at Radio Shack and Office Max that I thought about replacing it > with but was nervous about doing so, since the one that comes with the > Mercury Elite Pros has an output that does not correspond to any that I > read and I don't understand the problems of amperage. The input is listed > as 100-240 v 0.8A 50-60HZ (that I understand make it possible to use both > in Europe and here) but the output is listed as +12V -- 2A. Does that mean > that using a Radio Shack or Belkin power supply rated as being able to put > out either 300 Amps or 500 Amps respectively, would hurt the drive? -- SuperMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | Service & Replacement Parts [EMAIL PROTECTED] | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> SuperMacs list info: <http://lowendmac.com/supermacs/list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/supermacs%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
