Silver Power have been making PSUs for quite a while, though they've not received much press lately which changes with their new SP-850M PSU.  Their simian logo is all over this semi-modular power supply, which has four 6+2 PCIe power connectors for multiple GPU rigs as well as a nice selection of SATA power.  OC3D was nicely surprised by the efficiency of the PSU, while rated for 80 Plus Bronze their testing showed results more appropriate for an 80+ Gold rated PSU.  OC3D are not fans of the silverback, but love the actual PSU once they realized they could run it at 983W all day long.

"It's been a few years since the angry ape first made its debut on OC3D, now it's finally back for some second helpings."

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