SIIG's long-term business vision, comprehensive product line, effective marketing strategy and exceptional customer support have made SIIG the leading brand for computer add-on products. High-quality control standards are evident by one of the lowest defective return rates in the industry. PRODUCT FEATURES: Easily add two high-speed parallel ports (25-pin) to your PCI Express desktop system; Supports ECP, EPP, & BPP parallel port modes; Dual-profile PCB & brackets support full-size & low-profile desktop systems; Full support for Windows-based software and applications.