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: Conforms to PCI v2.2 Plug and Play; Can be installed in 32-/64-bit, 3.3v/5v PCI and PCI-X slot; Full support for DOS- and Windows-based software; PCI IRQ sharing feature reduces IRQ conflicts; Compliant with IEEE 1284-1994 parallel port standard; Supports ECP/EPP, Bi-directional (PS2), and Standard Parallel Port (SPP) modes; Works with various types of parallel devices including printers, removable drives, scanners, CD-R/RWs, and more.