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MFR. Name: Cisco | MFR#: HWIC-4A/S
4-Port Async/Sync Serial HWIC
The 4-Port Async/Sync Serial HWIC provides four serial async/sync ports using Smart Serial connectors and cabling. Each port can operate up to 256 Kbps in sync mode, or up to 230.4 Kbps in async.
