"Intel now officially admits there is a problem with USB 3.0 in Haswell products, and that solving the issue will affect delivery times of various products. The solution will affect the delivery dates of certain products, and according to the PCN that includes the Z87, H87, Q85 and Q87 chipsets."
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips