Following ASRock, ECS also has made it possible to overclock your Intel K-Series Haswell processors on H87, B85 and H81 motherboards. Normally if you would want to overclock your K-Series CPU you would have to buy a Z87 motherboard, but with ECS motherboards you do not have to!
ECS was able to achieve this by simply allowing users to adjust the CPU ratio within the BIOS. This provides a very simple and easy way to overclock on H87, B85 and H81 motherboards. And of course those boards have a much lower price point than the Z87 boards.
Source: ECS | News Archive