The Brainboxes 2 Port RS422/485 PCI Serial Card is a high - performance plug - in card designed for Universal PCI systems. It features two RS422/485 serial ports, allowing for efficient communication with various serial devices. With data transfer rates of up to 921, 600 baud and 128 - byte deep transmit and receive FIFOs, this card ensures fast and reliable data transmission. It is compatible with all popular operating systems, including Windows 32 - bit and 64 - bit versions, and comes with a lifetime warranty and support. The card is environmentally friendly and designed for easy installation, making it an ideal choice for enhancing your PC's serial communication capabilities.