"So far, ASRock has released three motherboards based on the new Intel Z68 chipset, two for the mainstream market (Z68 Pro3 and Z68 Pro3-M, which is a Micro-ATX version of the Z68 Pro3), and one for the high-end market (Z68 Extreme4). While the Z68 Extreme4 offers three PCI Express x16 slots, the Z68 Pro3 has only one. Let's take a look at this model from ASRock."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips