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Today's remote access and multiuser environments demand high-speed communications. Faster modems and servers can't do the job alone, they need to be connected to high-speed serial ports designed to keep pace with these higher-performing environments. That's why leading VARs and system integrators specify the Digi AccelePort Xr multiport serial adapters when they need intelligent boards that deliver the utmost in serial I/O performance. Supporting speeds up to 921.6 Kbps bi-directionally, the AccelePort Xr 920 provides two, four or eight ports that deliver all the speed you need for today's demanding serial connections. This allows each port to take full advantage of the high transmission speeds that are possible with today's V.34, 56 Kbps and V.90 modems, and ISDN terminal adapters. Digi achieves its high performance by combining an on-board RISC-based processor with its patented Front End Processor/Operating System (FEP/OS). The FEP/OS reduces server I/O overhead by handling serial I/O communication interrupts, character processing and data transfers. As a result, applications run faster. Hardware/software flow control delivers the absolute data integrity required for demanding remote access environments.