Pros: modular design, qiet, efficient., looks good, with a 5 year warranty.
Cons: hard to find.
I bought this power supply in sept 2011, it's a gold rated 850 that just doesn't quit. it's quiet, even under load, it's very efficient, gives good clean power. if you are lucky enough to pick one of these up, go for it, i got mine for 130, with a 50$ MIR, making it 80 bucks, just a steal. It's been in my rig on 24/7 since september, never given me any semblance of an issue. A+ on this guy.
In a computing world of new video and audio cards, add-ons, higher-powered chips and more, the search for power goes ever on. OCZ's OCZZ850M satisfies your power-hungry virtual instincts, and keeps you running at your best. The PSU is ready for your SLI or CrossFire configuration with four 6+2-Pin PCIe connectors. There are also 9 SATA, 3 Peripheral and 1 Floppy connector, so you load your system to fill any need. A single rail supplies more stable and safer power output for excellent system performance. Keeping it cool is a 135mm dual-ball-bearing fan and an openwork grille on the back panel. With its 80 PLUS Gold certification, less energy is wasted as heat or interference, delivering more power to your hungry system! Fans: 135mm double ball-bearing ultra-quiet fan Main Connector: 24Pin +12V Rails: Single PCI-Express Connector: 4 x 6+2-Pin SATA Power Connector: 9 Efficiency: over 90% typical Input Voltage: 100 - 240 V Input Frequency Range: 50/60 Hz