To check the NIC information of the corresponding interface, you can use the <more dmesg.boot> command in the /var/nslog directory of Netscaler.
In the output below, the interfaces labeled as "40/3" are Fortville NICs with firmware version 4.4.

40/3: Ethernet address: 00:e0:ed:58:fb:41
*** Error reading SFP+/SFP EEPROM, or no SFP+/SFP found
ixl6: PCI Express Bus: Speed 8.0GT/s Width x8
ixl6: ixl_set_advertised_speeds: Error getting phy capabilities -53, aq error: 5
ixl6: ixl_set_initial_advertised_speeds: ixl_set_advertised_speeds() error 5
plxsw: probe (PCI: VID=0x8086, DID=0x0E04), NOT SUPPORTED
pcib24: <ACPI PCI-PCI bridge> irq 57 at device 2.0 numa-domain 1 on pci20
pci23: <ACPI PCI bus> numa-domain 1 on pcib24
ixl7: <Intel(R) Ethernet Connection 700 Series PF Driver, Version - 1.9.13> mem 0xe7000000-0xe77fffff,0xe8018000-0xe801ffff irq 56 at device 0.0 numa-domain 1 on pci23
ixl7: using 512 tx descriptors and 4096 rx descriptors
ixl7: Using MSIX interrupts with 2 vectors
ixl7: msix vectors 2, queues 12
ixl7: f4.40 a1.4 n04.53 e80001cd8
ixl7: fw 4.40.35115 api 1.4 nvm 4.53 etid 80001cd8 oem 0.0.0
ixl7: Allocating 12 queues for PF LAN VSI; 16 queues active