The Gembird SPC-22 is a PCI-Express add-on card designed to provide your computer with two additional serial RS-232 ports. Built on the WCH382 chipset and utilizing the PCI-Express rev. 1.1 standard, it fits into a single-lane x1 slot, making it a practical choice for connecting legacy hardware or specialized industrial equipment that requires a stable serial connection. This card supports a wide range of baud rates from 50 bps up to 16 Mbps, achieving data transfer speeds of up to 2 MBps. Each DB9 port handles essential signals including TxD, RxD, RTS, CTS, DTR, DSR, DCD, and GND, while the BIOS automatically assigns the IRQ and I/O addresses to ensure a smooth setup. It is compatible with Windows 7, 8, 10, and 11 in both x86 and x64 architectures. Measuring 67 x 120 x 20 mm and weighing only 80 g, the board is compact and unobtrusive. To ensure it fits into various chassis types, the package includes both a standard and a low-profile bracket, along with a driver CD and manual for a straightforward installation process.