pan_2...thanks for the response. I currently have a Intel E1G44HT I340-T4 4 port PCIe Ethernet Server Adapter (Intel 82580 controller) in my pfSense computer and use it for my LAN and WLAN interfaces and have had no issues with this NIC. However, in the FreeBSD hardware notes, I can't find an 82580 controller listed in any driver section; there is a listing for an Intel Single, Dual and Quad Gigabit Ethernet Controller (82580) in the igb(4) driver section but I don't know if that 82580 listing is meant for the controller or not. The igb(4) driver supports Gigabit Ethernet adapters based on the Intel 82575 and 82576 controller chips.
Indeed, a means to return/refund is at the top of the list. I'm just looking for a PCIe, <= 4x, quad port gigabit NIC that will work with Suricata in Inline Mode. I've not had any issues with Intel NIC cards in the past which is why I was looking in the FreeBSD hardware notes in the em(4) driver section. Trying to find one that is either not discontinued or fiber seems a little more difficult than I expected.