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4 Port (2 x RS232, 2 x RS422/485) Serial Combo Card
RS232 Data Transfer Rates Up To 460 Kbps
Supports 2-Wire / 4-Wire RS485 Modes
256-Byte Deep FIFO Per Transmitter & Receiver
Standard Low-Profile Bracket Included
Compliant W/ PCI-Express Specification 1.0a
Supports PCI Power Management 1.1