Dett27 :
http://www.newegg.com/Product/Product.aspx?Item=N82E16817152035&nm_mc=EMC-IGNEFL061413&cm_mmc=EMC-IGNEFL061413-_-EMC-061413-Latest-_-PowerSupplies-_-17152035-L016A
or this I saw too
Perfect example of a PSU that is not "good".
It doesnt have 80+ Certification, which means its efficiency and levels of voltage ripple ("dirty power") at various loads is unknown, but likely not good.
That red switch on the back tells the PSU what voltage to expect from the wall, which means it doesnt have Active PFC, which is where it detects it automatically and adjusts. This is a pretty standard feature even for low end PSU's.
It has two 12v rails, each can only put out 264W. Having multiple rails means you can accidentally overload one if you were to put too much strain on it (say you were overclocking a 250W graphics card like a 780). All good PSU's use a single, far stronger 12v rail. Also the combined 12v wattage comes to 528W, which is 100W less than the advertised 630W.
While not necessarily a bad thing, gimmicks like LED lights tend to be used to make a horrible product seem more appealing.
Also, RAIDMAX is just known to be a horrible brand known for pumping out cheap PSU's. There is a list of brands on the Newegg forums arranged by the quality of their PSU's. RAIDMAX are in Tier 5.
Tier 5 - Other than the units listed above for any of these brands, NOT RECOMMENDED. Replace ASAP if you have one.
http://www.eggxpert.com/forums/thread/323050.aspx
Thats how you tell if a PSU is "good" or not.
Your after a ~550W PSU, heres a good one.
XFX Core Edition 550W, 80+ Bronze. $70 ($10 rebate)
http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013&Tpk=XFX%20550&IsVirtualParent=1