The NIC NPC221M2D6ZATRF is a network interface card that is used to provide high-speed Ethernet connections in data centers or in other similar applications. It has a dual-port 10GBASE-T Ethernet connection and supports speeds up to 10Gb/s. The card also supports the latest technologies, such as Flow Control, Energy Efficient Ethernet and VLAN tagging, and is designed to be compliant with both the IEEE 802.3ab and jumbo frame standards. It is also RoHS compliant, which means it supports environmentally friendly production processes.