10Gb Network Card

Introduction of NIC (Network Interface Card) and 10Gb NIC card

1. What is an optical network interface card? How does it work?

Optical network card, namely network adapter or network interface card (NIC), is mainly used to connect computers, servers and other equipment to the data network. Generally, the backplane of the optical network card has one or more ports, which can connect the network jumper of RJ45 interface or the DAC (direct attach cable) and AOC (active optical cable) of SFP/SFP + and other ports.

The optical network card can transmit signals in the physical layer and forward data packets in the network layer. No matter which layer of OSI seven layer model the optical network card is located in, it can act as a bridge between server/computer and data network. In other words, when a user sends an Internet request, the optical fiber network card will obtain data from the user's equipment, send them to the Internet server, and then receive the required data from the Internet for the user to surf the Internet.

2. What are the types of NIC optical network cards?

Fiber NICs can be divided into three types: ISA, PCI, and USB.

· ISA (Industry Standard Architecture) NICs - ISA bus was developed in 1981 and is the standard bus architecture for IBM compatible machines. Because its transmission rate is only 9Mbps, ISA is now no longer a recognized type and it is hard to find it in reality.

· USB (Universal Serial Bus) NICs - USB bus is an external bus standard that currently has three different versions, each supporting a different transmission number rate, and can work with a variety of devices.

· PCI (Peripheral Component Interconnect) NICs - The PCI bus was developed in 1990 to replace the earlier ISA bus with 32bit and 64bit data widths (equivalent to 133MB/s and 266MB/s data transfer rates). This type of fiber-optic NIC was initially used in servers and gradually evolved to be available for PCs. Today, most of the optical fiber network cards at the PC end are integrated on the motherboard. Therefore, the PCI optical fiber network card has been replaced by other bus optical fiber network cards, such as PCI-X or USB.

· PCI-X NICs - PCI-X is an enhanced PCI bus technology that uses 64-bit width to transfer data at data rates up to 1066MB/s. In general, PCI-X is backward compatible with PCI NICs.

· PCI-E NICs - PCIe is the most widely used fiber NIC today and is primarily used on computer and server motherboards. Today, there are five versions of PCIe optical network card, and each version supports different amount of data transmission.

Based on different speed requirements, PCI-E NICs are now available in 10Mbps, 100Mbps, 10/100Mbps adaptive, 1000Mbps, 10GbE and even higher speed rates. And 10Mbps, 100Mbps, 10/100Mbps adaptive NICs are suitable for small LAN, home or daily office; 1000Mbps NICs are suitable for Gigabit Ethernet, such as networking of small and medium-sized enterprises; 10G or even higher rate optical fiber network cards are suitable for networking of large enterprises or data centers.

3. Where are the main applications of NIC optical network cards?

Optical fiber network card is mainly used in computers and servers. Here we mainly introduce the server optical fiber network card. The main function of the server fiber NIC is to manage and process network traffic. Compared with the optical network card on the computer, the server optical network card usually needs a higher transmission rate, such as 10G, 25G, 40G or even 100G.

In addition, because server fiber NICs have a controller with a low CPU footprint, more tasks can be performed in the CPU. For servers, since server applications require higher bandwidth to manage large data traffic, servers should choose 10G or 25G fiber optic NICs for high-speed network connectivity. And for computers, a 100Mbps or 1000Mbps fiber optic NIC is sufficient.

The use of optical fiber network card mainly uses cables to connect the computer or server to the network. Therefore, before purchasing optical fiber network card, find out what connector types (cables) are supported on the computer or server, such as twisted pair of RJ45 interface, optical fiber jumper of LC/SC interface, even SFP+ DAC/AOC or QSFP+ DAC/AOC.

4. 10Gb NIC Network Card

The 10Gb NIC card uses a 32/64-bit PCI bus network interface card to establish a connection between the PC and the switch to solve the bottleneck problem of the server network card in the intranet mode. SFP+ single mode or multimode fibers and DAC/AOC cable can be used in 10G fiber network cards. The integrated communication control chip of 10G fiber network card relieves the pressure of CPU data processing. And 10G fiber NIC cards, especially 10Gbase-T NIC card, are frequently used in computers due to its relatively low transmission speed.

· IN82599EN-1SFP+ Single Port 10Gb NIC is a 10G fiber network card dedicated to server , it has one 10G LC optical fiber interface, can support 10Gbps transmission bandwidth, and support PCI-E X8 standard slot, ensure the network card efficient and stable work.In addition, the network card also supports VLAN, QOS strategy, flow control and other functions, suitable for medium and large LAN applications.

· IN82599ES-2SFP+ Dual Port 10Gb NIC is a 10G fiber network card dedicated to server , it has two 10G LC optical fiber interface, can support 20Gbps transmission bandwidth, and support PCI-E X8 standard slot, ensure the network card efficient and stable work.In addition, the network card also supports VLAN, QOS strategy, flow control and other functions, suitable for medium and large LAN applications.

· INX710-2SFP+ Dual Port 10Gb NIC is a 10G fiber network card dedicated to server , it has two 10G SFP+ interface, can support 20Gbps transmission bandwidth, and support PCI-E X8 standard slot, ensure the network card efficient and stable work.In addition, the network card also supports VLAN, QOS strategy, flow control and other functions, suitable for medium and large LAN applications.

· INXL710-4SFP+ Quad Port 10Gb NIC is a 10G fiber network card dedicated to server , it has four 10G SFP+ interface, can support 40Gbps transmission bandwidth, and support PCI-E X8 standard slot, ensure the network card efficient and stable work. In addition, the Quad 10Gb NIC also supports VLAN, QOS strategy, flow control and other functions, suitable for medium and large LAN applications.

You can find all these network adapter NIC products on Fiber Mall, including the Gigabit NIC, 10Gb NIC, 25Gb NIC, and 40Gb NIC.