Cisco Catalyst WS-C3750X-12S-S Switch. Model Cisco Catalyst WS-C3750X-12S-S. Series Catalyst 3750-X Series. Ports 12 x Gigabit Ethernet SFP (fiber). Uplink Module Support 4 optional network modules (1G/10G SFP/SFP+, 10G-T, or service module).
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