Asustek has released the P5E WS Professional and P5E3 WS Professional workstation motherboards with multiple high speed I/O interfaces including dual PCI Express (PCIe) 2.0 and PCI-X slots. The multiple slot interfaces increase expansion choices and allow users to obtain high data transmission speeds, highlighted Asustek. PCIe 2.0 x16 offers double the bus bandwidth of PCIe, from 2.5Gb/s to 5.0Gb/s. The P5E workstation series also showcases PCI-X slots for more convenience on slot expansion, and is able to bring about full speeds for Gigabit Ethernet, SCSI RAID and other PCI-X devices, claimed Asustek.