The Lanberg PCE-DB9-004 is designed for versatile connectivity with its 4 female 9-pin D-Sub (DB-9) ports that support RS-232, RS-422, and RS-485 protocols. This plug-in card utilizes a PCI Express x1 interface for installation and is suited for environments with an operating temperature range of 0°C to 50°C and humidity levels from 10% to 90% (non-condensing). This serial adapter facilitates reliable wired connections and features remote Wake Up functionality, ensuring a hassle-free user experience.With a focus on durability and performance, the PCE-DB9-004 is equipped with a bidirectional data link and a 256-byte FIFO for efficient data transmission. Ideal for various applications, it serves well in situations when a low-profile design is essential. The compact form factor and robust connectivity make this device a choice for enhancing system capabilities.