Cisco WS-X4920-GB-RJ45 RJ-45 Network Ethernet Module 20-Port 1000 Mbps / 1 Gbps

Cisco WS-X4920-GB-RJ45 20 Port Gigabit RJ-45 Ethernet Module

Lot of 4 Cisco SFP-10G-SR 10GB SFP+ Module 10-2415-03 Grade A, SKU 23562

Fully Compatibility 10GBase-T Transceiver SFP-10G-T 10G SFP Copper to RJ45 30M

WS-X4920-GB-RJ45--Catalyst 4900M 20-port Gigabit RJ-45 half card

Cisco Catalyst 4900M 20-PORT 10/100/1000 RJ-45 Half Card WS-X4920-GB-RJ45

Cisco Catalyst 10/100/1000BASE-T half-card Ethernet module WS-X4920-GB-RJ45

HP ProCurve J4908A 20 Port 2xSFP GBIC Gigabit Switch Module (for 4100gl 5300xl)