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2.5Gbps PCI Express Network Adapter RJ45 to PCIE Card RTL8125 NIC 2.5G Gigabit LAN Gaming Network Card PCI-E x1 RJ45 NIC for Desktop
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in Network Interface Cards
2.5Gbps PCI Express Network Adapter RJ45 to PCIE Card RTL8125 NIC 2.5G Gigabit LAN Gaming Network Card PCI-E x1 RJ45 NIC for Desktop

Limited time offer, ends 05/13

  • Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab
  • Connectors: 1 x RJ45 Network
  • Class: 1000M, PCIE
  • Model #: 2.5G PCI-E to RJ45
  • Item #: 9SIARJ2K082605
  • Return Policy: View Return Policy
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  • $14.99 
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2.5Gbps PCIe Network Card Dual RJ45 Port Adapter with Intel I226 Chipset 2500/1000/100Mbps PCI Express Gigabit Ethernet NIC Card RJ45 LAN Port Controller for Desktop Gaming Office
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2.5Gbps PCIe Network Card Dual RJ45 Port Adapter with Intel I226 Chipset 2500/1000/100Mbps PCI Express Gigabit Ethernet NIC Card RJ45 LAN Port Controller for Desktop Gaming Office

Limited time offer, ends 05/13

  • Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab
  • Connectors: 2 x RJ45
  • Class: 2500/1000/100Mbps
  • Model #: 2.5G PCIE To RJ45 Adapter
  • Item #: 9SIARJ2JUR3211
  • Return Policy: View Return Policy
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  • $43.99 
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  • $41.59 - $43.99
Fortinet FortiGate FG-61E Firewall Network Security Appliance ATP Bundle 1 years
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  • $194.99 
  • Free Shipping
  • $174.94 - $194.99
Intel Ethernet Converged Network Adapter X540-T1
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Intel Ethernet Converged Network Adapter X540-T1
  • Connectors: 1 x RJ45
  • Weight: 1
  • Package Contents: Ethernet Converged Network Adapter X540-T1 Information CD Low-Profile Bracket
  • Parts: 30 DAYS WARRANTY
  • Model #: X540T1
  • Item #: 9SIA4A0DT89624
  • Return Policy: View Return Policy
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  • $64.99 
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Intel I210T1 PCI-Express Network Adapter
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Intel I210T1 PCI-Express Network Adapter
  • Weight: 20
  • Package Contents: Ethernet Server Adapter I210 Low-Profile Bracket
  • Parts: Lifetime
  • Labor: Lifetime
  • Model #: I210T1
  • Return Policy: View Return Policy
10Gtek For Intel X540-T2 Ethernet Adapter with Intel X540 Controller, 10Gb Ethernet Network Card, Dual Port RJ45 Copper, PCI Express 10Gb Nic Ethernet LAN Adapter
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10Gtek For Intel X540-T2 Ethernet Adapter with Intel X540 Controller, 10Gb Ethernet Network Card, Dual Port RJ45 Copper, PCI Express 10Gb Nic Ethernet LAN Adapter
  • Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab
  • Connectors: 2 x RJ45
  • Temperature: 0°C ~ 55°C
  • Features: Intel X540-T2
  • Model #: 603149403406
  • Return Policy: View Return Policy
Fenvi WiFi 7 BE200NGW WI-FI Card Tri-Band 802.11be Wireless M.2 Module,Tri-Band 2.4G/5G/6G,Up to 5800Mbps,Bluetooth 5.4, 4K QAM, 320MHz,MU-MINO, Internal Network Adapter for Laptop, Windows 10/11
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Fenvi WiFi 7 BE200NGW WI-FI Card Tri-Band 802.11be Wireless M.2 Module,Tri-Band 2.4G/5G/6G,Up to 5800Mbps,Bluetooth 5.4, 4K QAM, 320MHz,MU-MINO, Internal Network Adapter for Laptop, Windows 10/11

Limited time offer, ends 05/15

  • Standards: 802.11be/ax/ac
  • WiFi Generation: Wi-Fi 7
  • Frequency Band: 2.4 GHz / 5 GHz / 6 GHz
  • Wireless Speed: Up to 5.8 Gbps
  • Model #: WIFI 7 BE200NGW
  • Item #: 9SIADXZK739200
  • Return Policy: View Return Policy
  • $29.99
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  • $27.89 
  • Save: 7%
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2.5GBase-T PCIe Network Adapter, 2500/1000/100Mbps PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support Windows Server/Windows, Standard and Low-Profile Brackets Included PCIe to 2.5 Gigabit
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  • $29.99
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  • $13.69 
  • Save: 54%
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2.5 Gigabit Ethernet PCI Express PCI-E Network Controller Card 10/100/1000/25000 Mbps RJ45 LAN Adapter Converter for Desktop PC
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TP-Link TG-3468 PCI-Express Network Adapter (with Normal and Low Profile Bracket)
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TP-Link TG-3468 PCI-Express Network Adapter (with Normal and Low Profile Bracket)
  • Standards: IEEE 802.3, 802.3u, 802.3ab, 802.3x, 802.1q, 802.1p, CSMA / CD, TCP / IP
  • Connectors: 1 x RJ45
  • LEDs: 1000 Mbps Link / Act, 100 Mbps Link / Act, 10 Mbps Link / Act
  • Temperature: Operating Temperature: 0 ~ 40 degree Celsius (32 ~ 104 degree Fahrenheit) Storage Temperature: -40 ~ 70 degree Celsius (-40 ~ 158 degree Fahrenheit)
  • Model #: TG-3468
  • Return Policy: View Return Policy
2.5GBase-T PCI Express Gigabit Network Card for Gaming, 2.5G/1G/100Mbps PCIe Ethernet Network Adapter RJ45 LAN Controller With Intel I226 for PC, Support Windows 10/11, Standard & Low-Profile Brackets
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2.5GBase-T PCI Express Gigabit Network Card for Gaming, 2.5G/1G/100Mbps PCIe Ethernet Network Adapter RJ45 LAN Controller With Intel I226 for PC, Support Windows 10/11, Standard & Low-Profile Brackets

Limited time offer, ends 05/19

  • Standards: IEEE802.3, IEEE802.3u, IEEE802.3x
  • Connectors: 1 x RJ45
  • LEDs: Link, Activity
  • Windows Vista: Windows 10/11
  • Model #: F-2500IR
  • Item #: 9SIADXZJP61574
  • Return Policy: View Return Policy
  • $19.99
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  • $19.79 
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EDUP Gigabit Ethernet PCI Express PCI-E Network Card 10/100/1000Mbps RJ45 LAN Adapter Converter for Desktop PC
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EDUP Gigabit Ethernet PCI Express PCI-E Network Card 10/100/1000Mbps RJ45 LAN Adapter Converter for Desktop PC

Limited time offer, ends 05/22

  • Connectors: 1 x RJ45
  • Class: 1000M, PCIE
  • Model #: SN110 EP-9602GS
  • Item #: 9SIAH19AP43481
  • Return Policy: View Return Policy
  • $15.99
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  • $14.99 
  • Save: 6%
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gigabyte gc-wbax210 (2x2 802.11ax tri-band wifi + bluetooth 5.2 pcie expansion card)
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  • $59.44
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  • $53.44 (2 Offers)
  • Save: 10%
  • $14.99 Shipping
Intel Ethernet Converged Network Adapter X550-T2
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Intel Ethernet Converged Network Adapter X550-T2
  • Weight: 0.4
  • Package Contents: Ethernet Converged Network Adapter X550-T2 Low-profile Bracket Full-height Bracket
  • Parts: Lifetime
  • Model #: X550T2
  • Item #: N82E16833106292
  • Return Policy: Standard Return Policy
Intel X540T2 100Mbps/1Gbps/10Gbps PCI Express 2.1 x8 Ethernet Converged Network Adapter
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Intel X540T2 100Mbps/1Gbps/10Gbps PCI Express 2.1 x8 Ethernet Converged Network Adapter
  • Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab
  • Connectors: 2 x RJ45
  • Weight: 20
  • Parts: Lifetime
  • Model #: X540T2
  • Return Policy: View Return Policy
TRENDnet TEG-10GECTX (Version v3.0R) Gigabit PCIe Network Adapter
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TRENDnet TEG-10GECTX (Version v3.0R) Gigabit PCIe Network Adapter
  • Standards: IEEE 802.3u IEEE 802.3ab IEEE 802.3bz 2.5G/5GBASE-T IEEE 802.3an 10GBASE-T IEEE 802.1Q
  • Connectors: 1 x RJ45
  • Temperature: Operating Temperature 0° - 70°C (32° - 158°F)
  • Humidity: Operating Humidity Max. 90% non-condensing
  • Model #: TEG-10GECTX (v3.0R)
  • Return Policy: View Return Policy
Intel E1G44HTBLK 10/100/1000Mbps PCI-Express 2.0 Server Adapter I340-T4 (Bulk Pack)
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Intel E1G44HTBLK 10/100/1000Mbps PCI-Express 2.0 Server Adapter I340-T4 (Bulk Pack)
  • Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab
  • Connectors: 4 x RJ45
  • Temperature: 0°C ~ 55°C
  • Weight: 1
  • Model #: E1G44HTBLK
  • Item #: 9SIA4A07E27339
  • Return Policy: View Return Policy
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  • $99.99 
  • Free Shipping
StarTech ST1000SPEX2L PCI-Express x1 Gigabit NIC Server Adapter Network Card - Low Profile
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in 30 days
StarTech ST1000SPEX2L PCI-Express x1 Gigabit NIC Server Adapter Network Card - Low Profile
  • Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab, IEEE802.3x
  • Connectors: 1 x RJ45
  • LEDs: 1 x Gigabit Detect (Yellow) 1 x Link / Activity (Green)
  • Wake On LAN: Yes
  • Model #: ST1000SPEX2L
  • Item #: N82E16833114095
  • Return Policy: Standard Return Policy
2.5Gb PCIe Network Adapter Intel i225, 2500/1000/100Mbps Gigabit Ethernet Card RJ45 LAN Port for Gaming/Office, Wake on LAN,PCI Express Server LAN Card, Desktop Ethernet Interface Card
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  • $25.90 
  • Free Shipping
  • $25.50 - $25.90
GLOTRENDS LE8111H Gigabit PCIe Ethernet Network Card, RTL8111H Chip, RJ45 LAN Port, PCIe X1 Installation
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GLOTRENDS LE8111H Gigabit PCIe Ethernet Network Card, RTL8111H Chip, RJ45 LAN Port, PCIe X1 Installation

Limited time offer, ends 05/30

  •  
  • $13.00 
  • Free Shipping
10Gtek 10Gb Network Interface Card, Dual SFP+ Port with Broadcom BCM57810S Chipset, PCI Express Ethernet LAN Adapter Support Windows Server/Windows/Linux/VMware
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  • $56.99 
  • Free Shipping
gigabyte gc-wbax200 2x2 802.11ax dual band wifi + bluetooth 5 pcie expansion card
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10Gtek M.2 A+E Key 2.5G Gigabit Ethernet Network Card w/ 2500Mbps RTL8125B chipset & 18cm cable length
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10Gtek M.2 A+E Key 2.5G Gigabit Ethernet Network Card w/ 2500Mbps RTL8125B chipset & 18cm cable length
  • Connectors: 1 x RJ45
  • Class: 2.5G, Single RJ45
  • Model #: 8125-2.5G-1T-M2E-TC
  • Item #: 9SIA9Z9K4V4653
  • Return Policy: View Return Policy
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  • $23.99 
  • Free Shipping
Intel Ethernet Server Adapter I350-T2
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Intel Ethernet Server Adapter I350-T2
  • Connectors: 2 x RJ45
  • Dimensions: 5.33" x 2.71"
  • Weight: 1
  • Parts: 30 days warranty
  • Model #: I350T2V2BLK
  • Return Policy: View Return Policy
PCI Express x4 Quad Port 802.3at PoE+ Gigabit Vision Frame Grabber Card
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PCI Express x4 Quad Port 802.3at PoE+ Gigabit Vision Frame Grabber Card
  • Connectors: 4 x RJ45
  • Wake On LAN: Yes
  • Temperature: 0°C ~ 55°C
  • Humidity: 5 % ~ 95 % (Non-condensing)
  • Model #: LRES2004PT-POE
  • Item #: 9SIAJBR8X63007
  • Return Policy: View Return Policy
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  • $259.90 
  • $20.50 Shipping
Intel X710-T2L 2 Port Low Profile PCI Express v3.0 x 8 Ethernet Network Adapter
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Intel® Ethernet Network Adapter X710-T4L BLK X710T4LBLK
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Intel
Intel® Ethernet Network Adapter X710-T4L BLK X710T4LBLK
Single Port 2.5 Gigabit Ethernet PCI-e x1 Controller Card NIC Intel I225 Chipset
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Single Port 2.5 Gigabit Ethernet PCI-e x1 Controller Card NIC Intel I225 Chipset
  • Connectors: 1 x RJ45
  • Parts: 3 Years
  • Labor: 3 Years
  • Model #: SY-PEX24076
  • Item #: 9SIA3XWH0U3955
  • Return Policy: View Return Policy
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  • $27.95 
  • Free Shipping
PCI Express x4 Dual Port 802.3at PoE+ Gigabit Vision Frame Grabber Card On Intel I350 Chipset
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PCI Express x4 Dual Port 802.3at PoE+ Gigabit Vision Frame Grabber Card On Intel I350 Chipset
  • Connectors: 2 x RJ45
  • Temperature: 0°C ~ 55°C
  • Humidity: 5 % ~ 95 % (Non-condensing)
  • Class: 1000M, PCIE
  • Model #: LRES2002PT-POE
  • Item #: 9SIAJBR8X62886
  • Return Policy: View Return Policy
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  • $135.90 
  • $20.50 Shipping
Broadcom BCM5720-2P - 2 x 1GbE PCIe NIC
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Broadcom BCM5720-2P - 2 x 1GbE PCIe NIC
  • Standards: IEEE 802.1Q, IEEE 802.3ab, IEEE 802.3az, IEEE 802.3i, IEEE 802.3u, IEEE 802.3x
  • Connectors: 2 x RJ45
  • Temperature: Operating Temperature: 32 ~ 131 degree Fahrenheit
  • Humidity: Operating Humidity: 5% ~ 95% non-condensing
  • Model #: BCM95720A2003AC
  • Return Policy: View Return Policy
2.5 Gigabit POE+ PCI-e x1 Ethernet Network Card
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2.5 Gigabit POE+ PCI-e x1 Ethernet Network Card
  • Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab, IEEE802.3x
  • Connectors: 1 x RJ45
  • Model #: SY-PEX24088
  • Item #: 9SIA3XWJSV3379
  • Return Policy: View Return Policy
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  • $55.99 
  • Free Shipping
Intel E810XXVDA2 Ethernet Network Adapter E810-XXVDA2
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10Gbps PCIe Network Adapter 1 RJ45 Port to PCI-E Controller 10Gbps AQC113 Ethernet Adapter Support for Windows 10/11/Windows Server 2012/Linux
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10Gbps PCIe Network Adapter 1 RJ45 Port to PCI-E Controller 10Gbps AQC113 Ethernet Adapter Support for Windows 10/11/Windows Server 2012/Linux

off w/ promo code MKTCD7TZXUVG,limited offer

  • Connectors: 1 x RJ45
  • Class: 10G, PCIE
  • Model #: DE-AQC113
  • Item #: 9SIARJ2K6A4336
  • Return Policy: View Return Policy
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  • $49.99 
  • Free Shipping
  • Network Interface Cards

Network Interface Cards and Adapters

A network interface card (NIC) provides a physical connection to a network. It allows your computer to "talk" to the network and the network to communicate with your computer. Each computer that is attached to a network requires a network interface card or chip. They help computers communicate with servers and other computers on the network.

Usually, these fit into expansion slots of CPUs, unless they're pre-installed or integrated into the motherboard. Some are external and attach to computers through serial or parallel ports. NICs for laptops are usually external. An interface card takes data from a PC, converts it into data "frames" that are broadcast onto the network, and sends it to another interface card. That card receives the frames, converts them into data, and sends it to that PC.

What to Look for in Network Interface Cards

When you are looking to build a LAN or upgrade or replace it, the NIC should be one of the first things you consider. You need to think about compatibility with operating systems, ease of installation, and price, especially for large company installations where you'll need many cards. NIC cards are usually Ethernet adapters. Others support other protocols such as ATM.

One other consideration before purchasing network interface cards is the speed that they support. For example, you may want an interface card that supports 10 Mbps traditional, or fast Ethernet, and on up to 10/20Gbps! You should also know the type of ports you are connecting them to and the standards your systems support. PCI, PCI-x and PCI-e or USB are all common iterfaces, and whether or not they'll work on your system depends on what sort of Network Interface Card your system supports.

Bestselling Network Interface Cards Reviews:

Product:
TP-Link 10/100/1000Mbps Gigabit Ethernet PCI Express, PCIE Network Adapter / Network Card / Ethernet Card for PC, Win10 supported (TG-3468)
Mc
10/6/2023 5:13:51 PM
Net Issue? TP-Link TG-3468 has you covered!
“If I ever need another network adapter card this will be my top choice”

Anonymous
12/10/2020 11:44:00 AM
Does what it's job
“It's a 1Gb Network adapter and it does what it's supposed to do.”

John M.
10/8/2022 7:26:23 AM
Works Great Increased PC Speed
“If you need to replace your Ethernet adapter, I highly recommend this product.”

Product:
HP Intel Ethernet I350-T2 2-Port 1Gb NIC (V4A91AA)
Luke S.
12/18/2021 2:45:07 PM
I got what I needed.
“Really great price compared to other new I350-T2 based NICs (Network Interface Card) out there;”

Product:
StarTech 1 Port PCI-Express Gigabit Network Server Adapter with Realtek Chip NIC Card - Dual Profile (ST1000SPEX2)
carl c.
10/26/2020 10:40:53 AM
Not perfect, but does the job.
“The on-board network interface was periodically failing and for the past few weeks this has performed without problem.”

Product:
10Gtek For Intel X520-DA1, Intel E10G42BTDA Adapter Card with Intel 82599EN Controller 10Gb PCI-E Network Card, PCI Express2.0 x8, Single SFP+ Port, Support Windows Server/Linux/VMware
Raynard T.
12/6/2022 7:20:33 AM
Worked right away
“I have two of these Network cards in two different systems, one running windows 11 and the other truenas scale.”

Product:
TP-Link TG-3269 Gigabit Network Adapter 10/100/1000Mbps PCI 1 x RJ45
David W.
11/4/2022 5:53:21 PM
Good so far
“Great network card so far.”