Features:100% brand new and high qualityThis card capability allow for upgrade with additional serial or parallel cards to your computer easily.With 2 serial ports and 1 parallel port.The motherboard is required to have a standard PCIE slotFaster data rates up to 6Gb/s for bus bandwidth.Plug and PlayUsing high-quality PCB board, high temperature resistance, cold resistance, long-term application, and stable operation, to ensure stabilityRS232 adapter cable adopts immersion gold technology, good electrical conductivity, anti-oxidation to ensure good contactPackage Includes:1 PC x PCI E Adapter CardSpecifications:Type:PCIE to RS232+DB25 AdapterMaterial: Metal+PCB BoardPort: 2 Serial Ports ; 1 Parallel PortSize: approx 120x88mm/4.72x3.46inSpeed: approx 6Gb/sColor: Greennote:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank youPlease allow 1-2cm measuring deviation due to manual measurement.