The Intel Z77 chipset supports 14 USB 2.0 ports and four USB 3.0 ports. The ASUS P8Z77-V PRO offers 10 USB 2.0 ports, two available on the motherboard rear panel and eight available through four headers located on the motherboard; and eight USB 3.0 ports, four located on the motherboard rear panel and four available through two headers located on the motherboard. The four additional ports are controlled by two ASMedia ASM1042 chips.