3COM
3C17714
3COM 3C17714 SuperStack 3 Switch 4900 4-PortGBIC Module. The GBIC module provides four switched ports using the standard GBIC interface connector.
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Hewlett Packard
J4878B
HP J4878B ProCurve Switch xl 4-Port Mini-GBIC Module with 4 open mini-GBIC slots
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