Despite the red PCB, the Highpoint version is a lot more attractive at half the price. They are most likely using the same controller (Marvell 88SE9235: 4x6Gb/s, PCIe 2.0 x2).
Originally Posted by Maban
Nice to see more two-lane PCIe cards coming out. Maybe Haswell will introduce us to the first x2 slot.
I can't recall the first chipset to support it, but many of the current ones already support x2 configurations.