Gigabyte made an announcement teasing two new power supplies last week. The G750H and B700H are 80 PLUS rated models topping out at 750W and 700W respectively. A company most well-known for its motherboards, it was somewhat surprising to see it tease power supplies and to discover that these PSUs are not even the first to be sold by Gigabyte with its branding.
The G750H and B700H are ATX form factor and use a semi-modular design that leaves the 24-pin ATX and 8-pin CPU power cables permanently attached and uses modular cables for all other connections (see below). One neat thing is that Gigabyte is using all black flat individually sleeved cables which may make it easier to hide and route them behind the motherboard tray (which on some cases can be an especially narrow channel). Both models are rated for SLI and Crossfire multi-GPU setups, use at least some Japanese capacitors (the G750H uses all Japanese capacitors), have a MTBF of 100,000 hours, and five year warranties.
In addition to the motherboard and CPU power, users can install two eight pin PCI-E, five SATA power, three Molex, and one floppy power connector. The modular cable configuration is the same on both PSU models.
The G750H is up to 90% efficient (80+ Gold) and uses a 140mm temperature controlled fan to keep noise levels low and the internal components cool (and efficient). Gigabyte has opted for a single rail design that sees the 12V rail rated at up to 62 amps.
On the other hand, the B700H is up to 85% efficient (80+ Bronze) at typical loads. It has a smaller 120mm temperature controlled fan for cooling. This model also uses a single 12V rail, but it tops out at 54 amps.
Several sites around the Internet have indicated (including Maximum PC) that Gigabyte has made the G750H and B700H available now, but they do not seem to be for sale yet in the US. I have tried to unearth pricing as well as the identity of the ODM Gigabyte is using for these new units, but no such luck so far. From my research, it appears that Gigabyte has used a number of different ODM/OEMs of varying quality for their past power supplies. It seems that we will have to wait for reviews to know for sure how these new PSUs will perform. I hope that Gigabyte has stepped up its power supply game as it has quite a bit of competition these days!