NIN-FB331JTRF is a type of network interface card (NIC) manufactured by NEC Corporation. It is compliant with the latest IEEE 802.3bz standard, which allows for 2.5Gbps data transmission. This card supports 10/100/1000Base-T, as well as 10G/LX4u network interfaces. It features features such as Quality of Service (QoS) logic, auto-negotiation of speed and duplex settings, lag load-balancing, multiple instances, and various other advanced capabilities for efficient and reliable operation. The card is also equipped with four (4) SFP ports, which can be used for connecting active optical cables or transceivers for additional network protocol flexibility.