SIIGs DP CyberParallel Dual PCIe is designed to add two high-speed parallel ports (25-pin) to PCI Express-enabled desktop computer. It delivers data transfer rates of up to 1.5MB/s supports ECP EPP PS2 and SPP parallel port modes and works with PCI Express slots of different lane widths. With the included spare low-profile bracket this dual-profile adapter can be installed into either standard height or low profile system chassis. It is a cost effective solution enabling you to add extra parallel ports for additional device connections.