Add serial communication support to your desktop computer or Small Form Factor (SFF) system, using this two-port serial card. RS-232 (DB9) support enables control and communication with a serial peripheral device. Legacy Connectivity Install this card to enable the continued use of legacy serial devices, preventing down time and avoiding costly upgrades. The 2-port PCIe serial card is ideal for system upgrades in a wide range of applications for logistics, manufacturing, and freight sectors, and the IT industry, such as POS equipment, security systems, A/V installations, and more. Connect with Ease The RS-232 card features dual ports with 16C1050 UART support, 256-byte FIFO (transmit/receive), bi-directional speeds up to 921.6 Kbps per port, low-profile brackets are included for SFF systems, and serial port LED status lights. In addition, it supports Windows and Linux systems for maximum compatibility. 21050-PC-SERIAL-CARD is backed for 2-years by StarTech.com, including free lifetime 24/5 multi-lingual technical assistance. Manufacturer: StarTech.com. Manufacturer Part Number: 21050-PC-SERIAL-CARD. Brand Name: StarTech.com. Product Name: Two-port PCIe Serial Card. Product Type: Serial Adapter. Host Interface: PCI Express x1. Platform Supported: PC. Linux. Number of Serial Ports (External): 2. Form Factor: Plug-in Card. Card Height: Low-profile. Height: 0.7". Width: 2.6". Depth: 2.6". Weight (Approximate): 0 oz. Package Contents: Two-port PCIe Serial Card 2 x Low-Profile Brackets 1 x Quick-Start Guide . Environmentally Friendly: Yes. Environmental Certification: RoHS. WEEE. Country of Origin: Taiwan. Limited Warranty: 2 Year. Additional Warranty Information: 2-years by StarTech.com, including free lifetime 24/5 multi-lingual technical assistance.