Pros: If you've got a free 5.25" drive bay, an empty card slot and an unused 4 pin Molex power connector, this auxiliary PSU for you. The installation is a snap and you end up with 2 PCI Express power cables, each able to supply 150W to your video cards. I was considering buying a high end 850W PC Power & Cooling Supply to replace my existing 600W PSU, but this option is a lot cheaper. The card slot is just a dummy faceplate to let the AC power cord run neatly out the back of your case. The Molex connection allows the unit to turn on automatically, when you power up your machine.

Cons: The price is bit steep just to supply your video card(s), but if you're considering replacing your existing PSU with a new high end, high wattage replacement PSU, then the price is pretty good.

Overall Review: Since the motherboard PCI Express slots provide each video card with 45-50W anyway, the BoosterX 3's power rating is overkill, at least for many of today's cards. However, it's a good choice for the power-hungry 7950 GX/2. (143W under load) And you can install more than one BoosterX 3. Why, I don't know? ;-)

Pros: Easy to install and setup. Not as noisy as i thought it would be.

Cons: the Card slot AC power passthrough thing doesn't fit very well but it does work.

Overall Review: here are some spec's that i couldn't find anywhere before i bought this card. current (min) 2A current (max) 25a noise 40 dBa under full load (its pretty quiet during normal use) if you upgrading to SLI and don't want to drop 3-4 C's on a big power supply or just bought one that doesn't have quite enough kick to run your gtx's this is for you.

Pros: I installed this into my HP Slimline so I could run a 9600GT. Works great.

Cons: None, other than having to remove DVD burner to put this in.

Overall Review: It just works.

Pros: Prevents lag spikes/fps drops in game related to graphic intense moments since VPU is being powered independently. Allows more consistent power to MB, CPU, and Ram from main PSU. I am running Battle Field 2 on MAX settings, including 8x antialiasing, at an average of 102fps. I'm also running 2Gb of Corsair XMS and a CoreDuo 2.4Gb oc'd to 2.8Gb with a 620w ATX main PSU.

Cons: None, runs excellent. Need available 3.5" slot. Additional heat source.

Pros: This thing is powering my 8800GTX just fine. I love it.

Cons: Just the bubble it has.

Overall Review: I was a little nervous becuase after i bought this aux. psu, a review came out saying it did not power a 8800GTX. Well, seeing as im using my computer right now, I can assure you that this can power a 8800GTX. I dont know what the people below me did wrong, but they obviously did somthing wrong if they couldnt get it to work. Maybe they didnt hook up both power cables to the card like your supposed to. I dunno. But it works.

Pros: Works amazing with the 7950 i have two of them running SLI and it gets the job done. Infact i told 3 of my friends about it all 3 of them are getting one.

Cons: Its to L337 for some people

Overall Review: This is the best invention ever it saved me $500 i was going 2 buy an 800w PSU and i found this. IF YOURE READING THIS BUY IT!!!

Pros: Build quality seems very high - I judge power supplies by weight, and this thing is a porker! 25 AMPS to your sli cards - this is more important than wattage. Looks better in person than the pics. Comes with everything you need to install, and was very well packaged.

Cons: Not real enthused about the led's and the clear plastic cover in front, but it does look better in person than I expected, and the competition is really ugly. I wish it dumped the heat out the front of the case instead of pulling air in- I'm using this in a micro form factor pc and there's only one system fan for both the cpu and the case, and no room for extra fans.

Overall Review: Really the only solution for a high powered vid card in a micro pc.

Pros: This is a great piece of hardware. It saved me a good deal of money as I just recently purchased an OCZ powersupply and didn't want to purchase a newer one just because I was deciding to upgrade to Quad-SLi. Its design is innovative, it doesn't overheat, and powers both of my XFX GeForce 7950 GX2's. It was easy to install and it shuts down when the rest of the PC shuts down unlike another knockoff I saw.

Cons: The blue LED light.

Overall Review: Very good supplemental PSU for those getting crossfire and quad-sli who already have spent a good deal of money on a good power supply