SIIG's DP 4-Port RS422/485 PCI Express Adapter Card easily adds four RS-422/485 serial ports with 15KV ESD protection to your PCIe enabled desktop computer. This high quality RS-422/485 serial adapter card supports serial port data transfer rates of up to 921Kb/s, features built-in 128-byte FIFO buffers and RS-422/RS-485 auto detection and auto switching. The DP 4-Port RS422/485 PCI Express Adapter Card packs powerful and advanced technologies such as 15KVDC ESD protection for the serial port interface to ensure reliable data transfer, stable performance and long life and dual-profile design to fit into either full height or low profile system chassis with the included brackets. The DP 4-Port RS422/485 PCI Express Adapter Card supports a wide variety of Windows operating systems, meets RoHS hazardous materials standards, comes with FCC and CE regulatory approvals and is backed by SIIG's limited lifetime warranty. Technical Information Host Interface: PCI Data Transfer Rate: Up to 7.20 Mbit/s Platform Supported: PC Interfaces/Ports Ports: 1 x 44-pin DB-44 Female Ports Expandability: 4 x 9-pin DB-9 Male RS-232 - Serial Physical Characteristics Form Factor: Plug-in Card Dimensions: 4.7" Height x 5.1" Width x 0.7" Thickness Height: 4.7" Width: 5.1" Thickness: 710 mil Weight (Approximate): 2.24 oz Miscellaneous Package Contents: DP 4-Port RS422/485 PCI Express Adapter Card Spare Enhanced Low-profile Bracket Fan Out Cable Driver CD 8 x Jumpers User's Manual Additional Information: Built-in 15KVDC ESD serial interface protection Built-in 128-byte FIFO buffer Dual profile design to work with full height and low profile chassis with included brackets Environmentally Friendly: Yes Environmental Certification: RoHS Country of Origin: China Warranty Limited Warranty: Lifetime

SIIG's DP 4-Port RS422/485 PCI Express Adapter Card easily adds four RS-422/485 serial ports with 15KV ESD protection to your PCIe enabled desktop computer. This high quality RS-422/485 serial adapter card supports serial port data transfer rates of up to 921Kb/s, features built-in 128-byte FIFO buffers and RS-422/RS-485 auto detection and auto switching. The DP 4-Port RS422/485 PCI Express Adapter Card packs powerful and advanced technologies such as 15KVDC ESD protection for the serial port interface to ensure reliable data transfer, stable performance and long life and dual-profi