The bundle is already seriously at opening: Modular power wrapped in the protective foam, multiple cables (live and stored in a special bag (useless but hey, it's all pretty full), clamps and cable ties to tidy the space in your case, the instructions, even a sticker (as useless but it's pretty well). No risk of having a pet on your principle object.
The power supply itself, once installed, is extremely silent. The fan cooled when the load exceeds a certain value, making it very discreet in normal use. It is a block 80Plus Gold certified, so the performance is excellent, at least as far as the stability of bousin (not a fart through during the voltage checks, even stress). I took the 760 W to have a margin of scalability.
Level cables, you will be served: in addition to the conventional 20 + 4 pins for the motherboard and 8 pins for the processor, there is a 8/4 pins for the processor (depending on your motherboard), two PCI-E cables 6/8 pins, each comprising two doses of this type (according to the graphics card, and thus allows you to mount a SLI or Crossfire with very hungry GPU, or Quad-SLI if you have nothing else to do your pennies!), eight molex sockets (power devices) on three cables, eight Sata taken (hard disks and drives) on three cables also, and even a Molex / Floppy adapter (floppy drive or some audio cards, why not ). More than enough for normal configuration, still more than sufficient for a beefier configuration like mine (i7 3770k, Asus GTX 670 TOP CU II, SSD + dual hard drives, integrated CPU watercooling case + six fans and a DVD player). Note that although reasonable cable length should suit most everyone's eccentricities,
Seasonic is a little more expensive than a lot of rivals, but the robustness and quality of manufacture is not denied, it is a solid block, guaranteed for 5 years with a concrete service.
The PC supply is an important choice for your configuration, do not skimp on quality or you will regret! A power problem = potential problems of all other components ...
I highly recommend this brand!