DS-7720B Dell Connectrix  56 port switch w rear-to-front airflow

540-BBHB DELL Broadcom Bcm5719 Quad-Port Gigabit Network Interface

540-11148 DELL Networking card Broadcom 57019 QP 1GB Network Inter

0F3P10 Dell Powervault MD3420 12G-SAS-4 storage controller p/n