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StarTech.com USB-C to Ethernet Adapter with 3-Port USB 3.0 Hub and Power Delivery - USB-C GbE Network Adapter + USB Hub w/ 3 USB-A Ports
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StarTech.com USB-C to Ethernet Adapter with 3-Port USB 3.0 Hub and Power Delivery - USB-C GbE Network Adapter + USB Hub w/ 3 USB-A Ports
  • Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab USB 3.0 - Backward compatible with USB 2.0 and 1.1 IEEE 802.3az Energy-Efficient Ethernet, IEEE 802.3x Flow Control, 802.1q VLAN Tagging, 802.1p Layer 2 Priority Encoding
  • Connectors: 1 x RJ45
  • Temperature: Operating Temperature: 0 ~ 45 degree Celsius (32 ~ 113 degree Fahrenheit) Storage Temperature: -10 ~ 70 degree Celsius (14 ~ 158 degree Fahrenheit)
  • Humidity: 10~90% RH (Non-condensing)
  • Model #: US1GC303APD
  • $88.17 - $90.17
Eaton Network Card-M3 - Remote management adapter - Gigabit Ethernet x 1
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Eaton Network Card-M3 - Remote management adapter - Gigabit Ethernet x 1
  • Brand: EATON
  • Part Number: NETWORK-M3
  • Standards: Gigabit Ethernet
  • Speed: 1000 megabits_per_second
  • Model #: NETWORK-M3
Intel Ethernet Converged Network Adapter X550, Backward compatible 10GBASE-T network adapter | X550T2
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Intel Ethernet Converged Network Adapter X550, Backward compatible 10GBASE-T network adapter | X550T2
  • Brand: Intel
  • Part Number: X550-T2
  • Speed: Dual-port 100Mb/s: 3.9 W (Typical Power) 4.9 W (Maximum Power) Dual-port 1GbE 5.5 W (Typical Power) 6.4 W (Maximum Power) Dual-port 10GbE 11.2 W (Typical Power) 13.0 W (Maximum Power)
  • Connectors: 2 x RJ45
  • Model #: X550T2
StarTech.com Dual Port 10G PCIe Network Adapter Card, Intel-X550AT 10GBASE-T PCI Express 10GbE Multi Gigabit Ethernet 5 Speed NIC 2 Port
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StarTech.com Dual Port 10G PCIe Network Adapter Card, Intel-X550AT 10GBASE-T PCI Express 10GbE Multi Gigabit Ethernet 5 Speed NIC 2 Port
  • Standards: IEEE 802.3an (10GBASE-T), IEEE 802.3ab (1GBASE-T), IEEE 802.3u (100BASE-T) PCI Express Rev 3.0
  • Temperature: Operating Temperature:5 ~ 50 degree Celsius (41 ~ 122 degree Fahrenheit) Storage Temperature: -20 ~ 60 degree Celsius (-4 ~ 140 degree Fahrenheit)
  • Humidity: 20% ~ 80% RH
  • Dimensions: 0.70" x 4.70" x 5.90"
  • Model #: ST10GPEXNDPI
BELKIN USB 3.0 to Gigabit Ethernet Adapte
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BELKIN USB 3.0 to Gigabit Ethernet Adapte
  • Connectors: 1 x USB 3.0
  • Weight: 20
  • Model #: B2B048
  •  
  • $39.99 
  • $9.67 Shipping
Intel Single Port RJ45 2.5/1GbE Ethernet Network Adapter I226-T1
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Intel Single Port RJ45 2.5/1GbE Ethernet Network Adapter I226-T1
  • Brand: Intel
  • Part Number: I226T1
  • Standards: Ethernet
  • Speed: 2.5Gbps
  • Model #: I226T1
Intel Quad Port Ethernet Network Adapter X710-T4L BLK
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Intel
Intel Quad Port Ethernet Network Adapter X710-T4L BLK
  • Brand: Intel
  • Part Number: X710T4LBLK
  • Speed: Data rate per port: 10GbE/5GbE/2.5GbE/1GbE/100Mb
  • Connectors: 4 x RJ45
  • Model #: X710T4LBLK
Lenovo ThinkPad USB3.0 to Ethernet Adapter
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Lenovo
Lenovo ThinkPad USB3.0 to Ethernet Adapter
  • Part Number: 4X90S91830
  • Features: Product Type:Gigabit Ethernet Card
  • Weight: 0.08
  • Model #: 4X90S91830
StarTech.com 10G Network Card, 2x 10G Open SFP+ Multimode LC Fiber Connector, Intel 82599 Chip
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StarTech.com 10G Network Card, 2x 10G Open SFP+ Multimode LC Fiber Connector, Intel 82599 Chip
  • Weight: 0.39
  • Package Contents: 2-Port 10G Fiber Network Card with Open SFP+ - PCIe, Intel Chip 1 x Low-profile bracket 1 x Quick install guide
  • Parts: 2 Year
  • Model #: PEX20000SFPI
HP Intel I350-T4 Gigabit Ethernet Card PCI Express 2.1 x4 - 4 Port
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Intel Dual SFP28 Ports 25/10/1GbE Ethernet Network Adapter E810-XXVDA2
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Intel
Intel Dual SFP28 Ports 25/10/1GbE Ethernet Network Adapter E810-XXVDA2
  • Brand: Intel
  • Part Number: E810XXVDA2
  • Standards: Ethernet
  • Speed: 1000 megabits_per_second
  • Model #: E810XXVDA2
QNAP QXG-10G2SF-X710 Dual-port 10 GbE Network Expansion Card
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Intel X520-DA2 Dual Ports 10 Gigabit Ethernet Converged Network Adapter, PCI Express 2.0 x8, Low Profile
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Intel X520-DA2 Dual Ports 10 Gigabit Ethernet Converged Network Adapter, PCI Express 2.0 x8, Low Profile
  • Brand: Intel
  • Model: E10G42BTDABLK
  • Part Number: X520-DA2
  • Standards: IEEE 802.3ae, IEEE 802.3ap, IEEE 802.3an, IEEE 802.3ad
  • Model #: E10G42BTDABLK
  •  
  • $459.99 
  • Free Shipping
HPE Ethernet 1Gb 4-Port 331T Adapter (647594-B21)
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HPE Ethernet 1Gb 4-Port 331T Adapter (647594-B21)
  • Weight: 20
  • Class: 10/100M, PCI
  • Model #: 647594-B21
  •  
  • $722.99 
  • Free Shipping
StarTech.com Dual Port PCI Express (PCIe x4) Gigabit Ethernet Server Adapter Network Card - Intel i350 NIC
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StarTech.com Dual Port PCI Express (PCIe x4) Gigabit Ethernet Server Adapter Network Card - Intel i350 NIC
  • Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab
  • Connectors: 2 x RJ45
  • LEDs: 2 - 10/100/1000 Mbps Indicator 2 - Link / Activity
  • Dimensions: 4.8"H x 2.6"L x 0.7"W
  • Model #: ST2000SPEXI
vantec single port usb 3.2 gen2x2 20gbps type c pcie host card (ugt-pce320c)
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vantec single port usb 3.2 gen2x2 20gbps type c pcie host card (ugt-pce320c)
  • Brand: HP
  • Part Number: UGT-PCE320C
  • Connectors: USB
  • Features: Classic
  • Model #: RNAB08ZVRXKGB
HPE SN1100Q 16Gb Dual Port Fibre Channel Host Bus Adapter
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HPE SN1610E 32Gb 2-port Fibre Channel Host Bus Adapter R2J63A
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Sonnet Solo 10G Thunderbolt 3 to 10 Gigabit Ethernet Adapter with NBASE-T Support
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Sonnet Solo 10G Thunderbolt 3 to 10 Gigabit Ethernet Adapter with NBASE-T Support
  • Connectors: 1 x RJ45
  • Wake On LAN: Yes
  • Model #: SOLO10G-TB3
TRENDnet TEG-10GECTX 10 Gigabit PCIe Network Adapter
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TRENDnet TEG-10GECTX 10 Gigabit PCIe Network Adapter
  • Brand: TRENDnet
  • Standards: IEEE 802.3ab IEEE 802.3bz 2.5GBASE-T IEEE 802.3an 10GBASE-T IEEE 802.1Q IEEE 802.3ad
  • Speed: 10Gbps
  • Connectors: 1 x RJ45
  • Model #: TEG-10GECTX (v3.0R)
10G Ethernet PCIe Network Adapter Lan Card, AQUANTIA AQC107 Chipset 10Gbps LAN Controller, RIITOP 10G/5G/2.5G/1G/100Mbps RJ45 NIC Card,Support PXE for Windows 11 and Linux
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  •  
  • $87.99 
  • Free Shipping
  • $85.50 - $87.99
StarTech.com Dual Port PCI Express Gigabit Ethernet PCIe Network Card Adapter
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StarTech.com Dual Port PCI Express Gigabit Ethernet PCIe Network Card Adapter
  • Weight: 20
  • Package Contents: Dual Port PCI Express Gigabit Ethernet PCIe Network Card Adapter - PoE/PSE 1 x Low-Profile Bracket 1 x Driver CD 1 x Instruction Manual
  • Parts: 2 Year
  • Labor: 2 Year
  • Model #: ST2000PEXPSE
Intel Gigabit Ethernet Server Adapter I350-T2
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Intel
Intel Gigabit Ethernet Server Adapter I350-T2
  • Brand: Intel
  • Part Number: I350-T2
  • Standards: EEE 802.3 (10BASE-T, 100BASE-TX, 1000BASE-T)
  • Speed: 10/100/1000Mbps
  • Model #: I350T2V2
StarTech.com 10G Network Card - 2 port - NBASE-T - RJ45 Port - Intel X550 chipset - Ethernet Card - Intel NIC Card
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StarTech.com 10G Network Card - 2 port - NBASE-T - RJ45 Port - Intel X550 chipset - Ethernet Card - Intel NIC Card
  • Standards: IEEE 802.3an (10GBASE-T), IEEE 802.3ab (1GBASE-T), IEEE 802.3u (100BASE-T), IEEE 802.3az (EEE - Energy Efficient Ethernet)
  • Connectors: 2 x RJ45
  • LEDs: 2 - Link Speed 2 - Link Activity
  • Dimensions: 4.70" x 0.80" x 6.40"
  • Model #: ST20000SPEXI
Intel E10GSFPLR 10Gbps Dual Rate 10GBASE-LR SFP+ Module
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Intel
Intel E10GSFPLR 10Gbps Dual Rate 10GBASE-LR SFP+ Module
  • Connectors: 1 x 10GBase-LR
  • Weight: 0.1
  • Parts: Lifetime limited
  • Labor: Lifetime limited
  • Model #: E10GSFPLR
StarTech.com USB 3.0 to Gigabit Ethernet NIC Network Adapter - 10/100/1000 Mbps
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StarTech.com USB 3.0 to Gigabit Ethernet NIC Network Adapter - 10/100/1000 Mbps
  • Standards: IEEE802.3i, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3az
  • Connectors: 1 x RJ-45 Female 1 x USB Type-A (9 pin) USB 3.0 Male
  • LEDs: 1 x Activity (Yellow) 1 x Link (Green)
  • Temperature: Operating Temperature: 0 ~ 50 degree Celsius (32 ~ 122 degree Fahrenheit) Storage Temperature: 0 ~ 70 degree Celsius (32 ~ 158 degree Fahrenheit)
  • Model #: USB31000NDS
Lenovo ThinkServer X540-T2 AnyFabric 10 Gb 2-Port Base-T Ethernet Adapter by Intel
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  •  
  • $116.35 
  • Free Shipping
SYBA SI-PEX24042 4 Port Gigabit Ethernet PCI-e x1 Network Interface Card
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SYBA SI-PEX24042 4 Port Gigabit Ethernet PCI-e x1 Network Interface Card
  • Wake On LAN: Yes
  • Weight: 0.3
  • Package Contents: 1 x PCI-Express Four Gigabit Ethernet controller card 1 x User Manual 1 x Driver CD 1 x Low Profile Bracket
  • Parts: 1 Year
  • Model #: SI-PEX24042
  •  
  • $133.87 
  • Free Shipping

Network Interface Cards

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:

Anonymous
11/17/2025 9:14:36 AM
Excellent performance

“ Select "Active Products" => "Network Connectivity" => "Intel Desktop Adapters" => "Intel Pro/1000 GT adapter". ”

Intel EXPI9301CTBLK Network Adapter 10/100/1000Mbps PCI-Express 1 x RJ45
ROBERT S.
12/24/2024 9:32:56 AM
Everything up to 10GB

“ Intel card works with every device NIC I have with no issues ”

Intel Ethernet Converged Network Adapter X550, Backward compatible 10GBASE-T network adapter | X550T2
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 ”

TP-Link 10/100/1000Mbps Gigabit Ethernet PCI Express, PCIE Network Adapter / Network Card / Ethernet Card for PC, Win10 supported (TG-3468)
J.L
9/20/2023 9:30:58 PM
Rock solid connection .... the magic of Aquantia Chip !

“ You need a 10G Network card on copper, just buy this ! ”

TP-Link 10Gbps PCIe Network Card (TX401) - PCIe to 10 Gigabit Ethernet Network Adapter, Supports Windows 10/8.1/8/7, Windows Servers 2019/2016/2012 R2, and Linux, Including a CAT6A Ethernet Cable
Brandon Y.
6/21/2023 11:48:57 AM
Works as advertised

“ Works without dropping connection (unlike like my onboard intel wired network adapter). ”

TP-Link TX201 Interface Cards 2.5Gbps PCI-Express 1 x RJ45
Geoffrey G.
4/16/2023 12:39:02 PM
Faster than Realtek onboard

“ Even if you don't have big files to copy, the onboard Realtek mobo nic apparently uses a lot of cpu or something. ”

Intel EXPI9301CT Desktop Adapter Gigabit CT 10/100/1000Mbps PCI-Express 1 x RJ45
Jeffery R.
3/15/2023 9:42:12 PM
This is a good single port multi-gig nic

“ This nic performs as rated and is a great value for price. ”

2.5Gbase-T Pcie Network Card Intel Chip I226-V 2.5G PCI Express Gigabit Ethernet Card Wired RJ45 LAN Adapter Converter for WINDOW 10 /11
Trevin C.
11/13/2022 7:41:23 PM
Great little NIC for cheap

“ I didn't want to buy the 1225-V NIC's due to being plagued with problems so I opted for a i226 version. ”

2.5Gbase-T Pcie Network Card Intel Chip I226-V 2.5G PCI Express Gigabit Ethernet Card Wired RJ45 LAN Adapter Converter for WINDOW 10 /11