Top 5 Best Network Card 2021 | Comparison of Best Network Card | Network cards are one of the primary devices in a computer. They can be desktops or servers, because thanks to them an internet connection, something familiar today, and a connection between a computer and other devices on a network.
These devices are usually integrated into the motherboard. Still, they are usually a bit limited for some applications, especially when it comes to unique connections due to the speed or type of relationship, such as a fiber optic connection.
- USB wifi adapter
- WIFI repeaters
- Desktop computer
Whatever the reason you want to buy a network card, here we will do a compilation with the best network card available on the market, both in price and quality. Below are the most relevant types of network cards on Amazon.
Table of Contents
Top 5 Best Network Card 2021
1. UGREEN Gigabit Ethernet PCI Express Network Card
From the UGREEN brand, a network adapter with a 1X slot format PCI Express interface can reach speeds of 1000 Mbps in full-duplex and 2000 Mbps in full-duplex. It is equipped with a new technology Realtek RTL8111G chip, making it compatible with Windows XP / Vista / 7/8/10.
It is a small card, with which it can be adapted for ATX and ITX computers, for which it has two supports, one with a standard 12 cm profile and the other with an 8 cm low profile, without any problems with the card.
The card is capable of automatically adapting to full-duplex and half-duplex. Also, it supports the following protocols and functions: 9K jumbo frames, cross detection, auto-correction (auto MDIX), 802.1Q VLAN tagging, and LAN stake. , Among others.
Out of this board, it is essential to highlight compatibility with Windows 10, as many panels on the market give problems when installing and, in many cases, do not work.
2. CSL – PCI Gigabit LAN Network Card
Keeping in mind what a network card is is another option, as it can be obtained in PCI and PCI Express formats, with which you have two options according to the connectors that your motherboard has. It can reach speeds of 1000 Mbit (half-duplex) and 2000 Mbit (full-duplex).
This PCI network card has a Realtek RTL8169SC chip, which is compatible with the latest operating systems (Windows 10, 8, 7, Vista) and includes compatibility with Windows XP and 2000 needs to be used on older computers.
It has 1 RJ-45 slot and an automatic speed selector. It is plug and plays, and most systems include drivers, whereas, on older systems, you can use the manufacturer’s drivers.

3. StarTech.com ST1000SPEXD4 2 ports, PCI-E 1000Mbps
Sometimes you need multiple network connections on a computer, which is the most common use in a server. It is capable of reaching speeds of 1000 Mbps on each port. It is equipped with Realtek – RTL8111E chip, which is compatible with desktop and server latest systems. It also supports Mac and Linux.
This network card has 2 RJ-45 ports and comes with a 1X PCI-E presentation. It has full-profile and low-profile brackets to suit every type of cabinet. Also, it supports the jumbo frame and VLAN 802.1q tagging, as well as Wake over LAN.
With 2 ports, it allows you to configure the host configuration with dual-core (“dual-homed”) or multi-homed (“multi-home”), which gives more security to the business network.

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4. StarTech PEX10000SFPI 10 Gbps Fiber Optic PCI-E Card SFP Ports
It is a high-performance network card designed to be used in fiber optic connections, requiring 10GbE SPF + open SFP connectors, typically for direct connections with servers or high-speed workstations. For. It supports up to 10Gbps in normal mode and up to 20Gbps in full-duplex.
Its design is intended to be used in the PCI-E X8 slot. It features an Intel 82599 chip, capable of processing fiber-optic speeds up to 10 Gbps and most modern desktop operating systems, Windows 7 forward, Windows Server 2008 R2. Is compatible with. Forward and Linux 2.6.24 or higher.
This is a network card for a particular use, ideal for fiber optic connections, so if you have a standard reference that uses the RJ45 connector, it won’t be helpful. This model is achievable with 1 or 2 10 GB SPF + Open SFP ports.
It is one of the best wifi network cards that you can find on the market.

5. StarTech ST20000SPEXI PCI-E Card 10 Gbps connections 2 RJ45 Ports
This network card model is designed for high-speed connections, which uses 2 RJ45 ports with a speed of 10Gbps in normal mode and 20 RJbps duplex mode. It has an Intel X540 chipset with virtualization and many advanced features such as PXE boot capability, VLAN tagging, jumbo frames, and auto MDIX.
This card has a PCI-E4X format, should be taken to check if the workstation has this connector. And it has two brackets to plug into a variety of low and high-profile cabinets.
You have nothing to send a wireless network card.
It is compatible with Windows, Windows 7 and higher, Windows Server 2008 R2 and higher, and the latest versions of Linux 2.4.x.
Which network card to buy
When selecting a network card, you have to keep in mind what you will use it for, whether it is a network card for a laptop or not. Something familiar is finding a replacement for a network card integrated into the computer that stops working, so with any card, you have enough speed to support the necessary connections. You’ll be fine.
In other cases where you require more than one connection or even have the option of a high-speed connection, such as a fiber-optic connection, you may be interested in purchasing a board with an SFP connector or 1 Have more than an RJ-45 port. In the end, it is about seeing what you need and choosing one that fits your budget.
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