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{{Infobox Computer Hardware Generic
| name = Network interface controller
| image = Network card.jpg
| caption = A 1990s [[Ethernet]] network interface card that connects to the motherboard via the now-obsolete [[ISA bus]]. This combination card features both a [[BNC connector]] (left) for use in (now obsolete) [[10BASE2]] networks and an [[8P8C]] connector (right) for use in [[10BASE-T]] networks.
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}}</ref>
Early network interface controllers were commonly implemented on [[expansion card]]s that plugged into a [[computer bus]]. The low cost and ubiquity of the [[Ethernet]] standard means that most newer computers have a network interface built into the [[motherboard]], or is contained into a [[USB]]-connected [[dongle]], although network cards remain available.
Modern network interface controllers offer advanced features such as [[interrupt]] and [[Direct memory access|DMA]] interfaces to the host processors, support for multiple receive and transmit queues, partitioning into multiple logical interfaces, and on-controller network traffic processing such as the [[TCP offload engine]].
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[[File:Qle3442-cu 10gbe nic.jpg|thumb|A [[Qlogic]] QLE3442-CU SFP+ dual-port NIC]]
Modular designs like [[Small
[[LED]]s adjacent to or integrated into the network connector inform the user of whether the network is connected, and when data activity occurs.
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| publisher = [[Intel]] }}</ref>
The hardware-based distribution of the interrupts, described above, is referred to as
| url = http://www.intel.com/content/dam/technology-provider/secure/us/en/documents/product-marketing-information/tst-grantley-launch-presentation-2014.pdf
| title = Intel Look Inside: Intel Ethernet
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