I350-T4 4-Port Ethernet Network Card 366FLR i350 - 665240-B21

Replacement I350-T4 quad-port Ethernet network card, model 366FLR using the i350 chipset (part number 665240-B21). Provides four Ethernet ports in the I350-T4 form factor and is sold under the 365FLR/366FLR i350 series identifier 665240-B21. Suitable as an upgrade or spare to restore multi-port network connectivity for compatible systems.