PC Stats posted a review on the Gigabyte GA-X48-DS5 Intel X48 Express Motherboard

Gigabyte's high-end GA-X48-DS5 motherboard is, as you might have
guessed, based on the Intel X48 Express and ICH9R chipsets. It's core logic offers up 32 lanes of PCI Express 2.0 bandwidth which makes this platform great for running a pair of Crossfire'd ATI videocards at full tilt.

Gigabyte GA-X48-DS5 Intel X48 Express Motherboard Review