Is this power adapter ok for Macbook?

I'd like to get a second 60w magsafe power adapter for my Macbook Aluminum (bought Dec 2008). Here is what I'm looking at http://cgi.ebay.com/60W-AC-Power-Adapter-Charger-For-Apple-MacBook-MagsafeW0QQitemZ370224264486QQcmdZViewItemQQptZLH_DefaultDomain0?hash=item563315f526. The power adapter model number matches mine (A1184). But I don't see my Macbook model number (A1278) listed in those on the page. The Macbooks listed seem to be older models.
The power adapter looks to be exactly the same as mine. Is there any reason I shouldn't buy it?

Thanks. How do you know it isn't original?
I'm trying to save about 40 bucks since originals on eBay are around $35 + shipping. Is it worth it or is new better?
Here they have the new adapter and the older (mine): http://store.apple.com/us/search?find=60wmagsafe+poweradapter&mco=Nzc1MjMwNg. If I get new, guess it is better to go with the newest of the new.

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I'm traveling to London for the summer, does anyone know a good power adapter/converter for my MacBook Pro?

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Copied from the Apple Store: http://store.apple.com/uk/product/MB974ZM/B?fnode=MTY1NDEwMQ&mco=MTA4NDE3MDQ

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does a usb cable
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http://support.apple.com/kb/HT2346
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http://developer.apple.com/qa/qa2001/qa1266.html
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Broken Keys? Really? On a Macbook? How hard do you type?
I have owned an iBook (5 years), a 17" PowerBook (4 years), a 15" MacBook Pro (3 months), and a 24" iMac (1 year). So far, the ONLY problem I have had is a bad airport card in the MacBook Pro, which apple promptly replaced at no charge.
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(http://store.apple.com/us/product/MD836LL/A/apple-12w-usb-power-adapter?fnode=74)
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Hi, Is this PSU powerful enough to run my computer? SILENT PUREPOWER SERIES TT-420AD, 420WATT POWER SUPPLY, +3.3V@30A;+5V@40A;[email protected];+12V@18A;[email protected];+5VSB@2A. My computers specs are as follows: AMD athlon 2700XP, 2xVdata 512mb pc3200, ATI Radeon 9700pro, Seagate SATA 80GB hardrive, Hitachi DVD ROM drive, floppy drive, MSI KT6 Delta FISR. I want to know whether this power supply will have enough power to run my setup as I brought an ICUTE 400watt power supply that couldn't manage(no doubt cause its a cheap peice of sh*t) but since Thermaltake is a decent brand I'm thinking it should manage but I just want to be sure. Cheers

Quote
Hi, Is this PSU powerful enough to run my computer? SILENT PUREPOWER SERIES TT-420AD, 420WATT POWER SUPPLY, +3.3V@30A;+5V@40A;[email protected];+12V@18A;[email protected];+5VSB@2A. My computers specs are as follows: AMD athlon 2700XP, 2xVdata 512mb pc3200, ATI Radeon 9700pro, Seagate SATA 80GB hardrive, Hitachi DVD ROM drive, floppy drive, MSI KT6 Delta FISR.
That PSU will support your configuration and then some. I have several TT Silent PurePower 420W in service - no complaints. Dual-fan PSU of good construction. Whenever Newegg puts that PSU on sale for $36.99 with free shipping (regular $42.00 plus shipping), I jump on it.
+3.3V and +5V are not a problem, you would be hard pressed to build a system that can place a combined load greater than 170W on +3.3V and +5V, even if you tried. Your system power needs on +12V rail will be (MAX LOAD):
MSI KT6 Delta FISR = .5A
Athlon 2700XP = 7.2A (AMD Datasheet)
2x V-DATA 512MB PC3200 - N/A
ATI Radeon 9700PRO = 1A (see: O/C Radeon 9800 Pro)
Seagate SATA 80GB = 2.8A
Hitachi DVD ROM = 1.5A
CPU FAN = .25A
2x CASE FAN = .5A
Max Total = 14A (rounded to the next ampere)
Edit: I should point out that 14A is the load expected if all these components are simultaneously placing their MAX load on the +12V, a condition that is virtually impossible to reproduce outside of a test lab. For instance, HDD and CD/DVD drives generate max load during disk spin-up, thereafter demanding much less current for read/write/seek operations (approx. 1A). Same with cooling fans.
A real world 'continuous' consumption figure would be in the neighborhood of 10A.

Is this power adapter ok for Macbook?

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