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Intel Dual SFP28 Ports 25/10/1GbE Ethernet Network Adapter E810-XXVDA2
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StarTech.com 1-Port 2.5G NBASE-T PCIe Network Card Intel®I225-V, Single-Port Ethernet, Multi-Gigabit NIC
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Intel EXPI9404PTL 10/100/1000Mbps PCI-Express PT Quad Port Low Profile Server Adapter
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Intel EXPI9404PTL 10/100/1000Mbps PCI-Express PT Quad Port Low Profile Server Adapter
  • Standards: IEEE 802.1Q VLANs IEEE 802.3ad IEEE 802.3ab IEEE 802.3u IEEE 802.3x IEEE 802.1p IEEE 802.3z
  • Connectors: 4 x RJ45
  • BUS: PCI Express 1.0a
  • LEDs: 4 (1/port, link and speed) solid and blinking
  • Model #: EXPI9404PTL
Allied Telesis AT-2711FX/ST-901 100Mbps PCI-Express Network adapter
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Allied Telesis AT-2711FX/ST-901 100Mbps PCI-Express Network adapter
  • Connectors: 1 x ST
  • BUS: 32-bit PCI
  • Weight: 20
  • Parts: Lifetime limited
  • Model #: AT-2711FX/ST-901
  • $209.00
  •  
  • $190.99 
  • Save: 8%
  • Free Shipping
SYBA SY-VIA-GA 10/100/1000Mbps PCI Gigabit Network Card
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SYBA SY-VIA-GA 10/100/1000Mbps PCI Gigabit Network Card
  • Standards: IEEE802.3ab IEEE 802.3x IEEE 802.1p IEEE 802.1Q
  • Connectors: 1 x RJ45
  • LEDs: Link, Activity
  • Drivers: MS Widow server 2003/XP/NT/ME/2000/98SE, Read Hat Linux 7.3(kernel 2.4.18-3) or later, Novell Netware 4.2/5.x/6.x/ODI 1.11
  • Model #: SY-VIA-GA
  •  
  • $16.99 
  • Free Shipping
StarTech.com Gigabit Ethernet Card, PCI Express 2.1 x1 - Intel I210-IS
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StarTech.com Gigabit Ethernet Card, PCI Express 2.1 x1 - Intel I210-IS
  • Dimensions: Height: 0.6" Width: 2.6" Depth: 3.4"
  • Weight: Weight (Approximate): 1.40 oz
  • Model #: P011GINETWORKCARD
StarTech.com 2-Port 2.5G NBASE-T PCIe Network Card, Intel® I225-V, Dual-Port Ethernet, Multi-Gigabit NIC
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StarTech.com 2-Port 2.5G NBASE-T PCIe Network Card, Intel® I225-V, Dual-Port Ethernet, Multi-Gigabit NIC
  • Part Number: PR22GINETWORKCARD
  • Package Contents: 2-Port 2.5GBase-T Ethernet Network Adapter Card - PCIe 2.0 x2 1 x Low Profile Bracket 1 x Quick-Start Guide
  • Model #: PR22GINETWORKCARD
Intel 800 E810-CQDA1 Single Port QSFP28 100/50/25/10GbE Ethernet Card E810CQDA1BLK
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Intel Ethernet Network Adapter X710-T2L for OCP 3.0, Dual-port energy-efficient OCP NIC 3.0 adapters for NBASE-T and 10GBASE-T networks | X710T2LOCPV3
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Intel
Intel Ethernet Network Adapter X710-T2L for OCP 3.0, Dual-port energy-efficient OCP NIC 3.0 adapters for NBASE-T and 10GBASE-T networks | X710T2LOCPV3
  • Brand: Intel
  • Part Number: X710T2LOCPV3
  • Features: General RJ45 connections over CAT5e, CAT6, CAT6A cabling Energy Efficient Ethernet (EEE) Load balancing on multiple CPUs Protect, Detect and Recover Support for most network operating systems Time Sync (IEEE 1588*, 802.1as) OCP NIC 3.0 adapter Adapter features Data Rate Supported Per Port : 10/5/2.5/1Gbps and 100Mbps Bus Type/Bus Width: PCIe 3.0 x8 Interrupt Levels: INTA, MSI, MSI-X Hardware Certifications: FCC A, cULus, CE, VCCI, BSMI, RCM, KCC, EEE Controller: Intel® Ethernet Controller X710-AT2 (Dual Port)
  • Model #: X710T2LOCPV3
Intel Quad Port Ethernet Network Adapter X710-T4L BLK
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Intel
Intel Quad Port Ethernet Network Adapter X710-T4L BLK
  • Connectors: 4 x RJ45
  • Temperature: Operating Temperature: 0 °C to 55 °C (32 °F to 131 °F) Storage Temperature: -40 °C to 70 °C (-40 °F to 158 °F)
  • Humidity: Storage Humidity Maximum: 90% non-condensing relative humidity at 35 °C
  • Dimensions: 167 mm x 69 mm
  • Model #: X710T4LBLK
Eaton Network Card-M3 - Remote management adapter - Gigabit Ethernet x 1
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Intel Dual Port QSFP28 100/50/25/10GbE Network Adapter E810CQDA2
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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
  •  
  • $22.99 
  • Free Shipping
Cablecc USB-C Type-C USB3.1 to 1000Mbps Gigabit Ethernet Network LAN Adapter for Laptop
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  •  
  • $10.90 
  • Free Shipping
  • $8.72 - $10.90
Broadcom BCM957504-N425G 25Gbps Open Computer Project (OCP) 3.0 Network Adapter
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StarTech.com 1-Port 2.5GbE M.2 2280 Network Card, NBASE-T PCIe Ethernet Card, Intel I225-V, Multi-Gigabit Desktop NIC/LAN Card, TAA
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StarTech.com 1-Port 2.5GbE M.2 2280 Network Card, NBASE-T PCIe Ethernet Card, Intel I225-V, Multi-Gigabit Desktop NIC/LAN Card, TAA
  • Part Number: MR12GI-NETWORK-CARD
  • Dimensions: Height: 0.6" Width: 3.1"
  • Weight: Weight (Approximate): 0.50 oz
  • Package Contents: 2.5Gigabit Ethernet Adapter 1 x CAT6 Cable Adapter 1 x Full-Profile Bracket 1 x Low-Profile Bracket 1 x M3x2 Screw 1 x QuickxStart Guide
  • Model #: MR12GI-NETWORK-CARD
StarTech.com USB 3.0 to Fiber Optic Converter - USB to Open SFP Adapter - Gigabit Network Adapter Multi Mode (MMF)/Single Mode Fiber (SMF)
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StarTech.com USB 3.0 to Fiber Optic Converter - USB to Open SFP Adapter - Gigabit Network Adapter Multi Mode (MMF)/Single Mode Fiber (SMF)
  • Standards: IEEE 802.3z 1000BASE-SX/LX IEEE 802.1Q VLAN tagging
  • Connectors: Connector Type (s): 1 x 9 pin USB 3.0 A Female External Ports: 1 x SFP Slot Female
  • Wake On LAN: Yes
  • Temperature: Operating Temperature: 0 ~ 60 degree Celsius (32 ~ 140 degree Fahrenheit) Storage Temperature: -10 ~ 70 degree Celsius (14 ~ 158 degree Fahrenheit)
  • Model #: US1GA30SFP
  • $256.99
  •  
  • $244.99 
  • Free Shipping
2PORT GBE PCIE 4LANE CARD
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2PORT GBE PCIE 4LANE CARD
  • Model #: LB-GE0014-S1
Intel Network E810XXVDA2BLK Ethernet Network Adapter XXVDA2
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Intel E1G44ET2 10/100/1000Mbps PCI-Express Gigabit Ethernet Card
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Intel E1G44ET2 10/100/1000Mbps PCI-Express Gigabit Ethernet Card
  • Connectors: 4 x RJ45
  • Weight: 20
  • Parts: Lifetime limited
  • Labor: Lifetime limited
  • Model #: E1G44ET2
Lenovo ThinkPad USB3.0 to Ethernet Adapter
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Lenovo
Lenovo ThinkPad USB3.0 to Ethernet Adapter
  • Weight: 0.08
  • Model #: 4X90S91830
PCIe Ethernet Network Adapter Card 1000M, RIITOP PCI Express Dual Port RJ45 Gigabit Ethernet Card for Desktop PC, Support Windows server 2008 r2, 2012, 2016, 2019, Windows 7/8/10/11,Linux
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PCIe Ethernet Network Adapter Card 1000M, RIITOP PCI Express Dual Port RJ45 Gigabit Ethernet Card for Desktop PC, Support Windows server 2008 r2, 2012, 2016, 2019, Windows 7/8/10/11,Linux

Limited time offer, ends 08/31

  • Connectors: 2 x RJ45
  • LEDs: Link, Activity
  • Package Contents: 1x Dual Port 1000M Gigabit Ethernet Pci Express Card. 1x Low Profile Bracket.
  • Class: 1000M, Dual RJ45
  • Model #: PCIE1G-2I
  •  
  • $25.99 
  • Free Shipping
  • $24.50 - $25.99
2PORT 10G ETHERNET NETWORK PCIE
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2PORT 10G ETHERNET NETWORK PCIE
  • Weight: 0.4
  • Model #: LB-GE0311-S1
Intel EXPI9404PTG2L20 10/100/1000Mbps PCI-Express PRO/1000 PT Quad Port Server Adapter
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Intel
Intel EXPI9404PTG2L20 10/100/1000Mbps PCI-Express PRO/1000 PT Quad Port Server Adapter
  • Connectors: 4 x RJ45
  • Parts: Lifetime limited
  • Labor: Lifetime limited
  • Model #: EXPI9404PTG2L20
QNAP QXG-10G2T-X710 10Gigabit Ethernet Card QXG10G2TX710
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Learn about Network Interface Cards (NICs)

Faster, More Reliable Wired Connectivity

A Network Interface Card gives your PC or server a fast, stable link to your network. From budget 1GbE to multi-gig (2.5GbE/5GbE) and 10GbE+, you’ll find PCI Express cards, USB adapters, and multi-port models in Newegg’s Network Interface Cards catalog. Pair your NIC with the right switch, optics, and cabling to unlock consistent throughput for gaming, low-latency streaming, content creation, virtualization, iSCSI backups, and more.

Popular NIC Categories

PCIe Ethernet Cards

The go-to choice for desktops and workstations. Options range from 1GbE and 2.5GbE to 10GbE/25GbE, with features like VLAN tagging, link aggregation (LACP), checksum/TSO/LRO offload, SR-IOV/RDMA, and PXE/Wake-on-LAN. Browse performance picks here: 10GbE network cards.

USB & USB-C Ethernet Adapters

Ideal for ultrabooks and mini PCs—plug-and-play wired networking without opening the case. Choose USB 3.0/USB-C for Gigabit and above. Find compact options in Network Adapters & Ethernet Connectors.

Fiber & SFP/SFP+ NICs

Use SFP/SFP+ for long-distance or electrically isolated runs and ultra-low latency. Pair your card with compatible optics from SFP/SFP+ transceivers and OM3/OM4 fiber for 10GbE and higher.

Key Decisions Before You Buy

Match the NIC to your target speed (1G, 2.5G, 5G, 10G, 25G), PCIe slot type (x1/x4/x8, Gen3/Gen4), and connector (RJ45 vs. SFP/SFP+). For fiber or long-run links, compare SFP+ fiber NICs. For copper installs, use the right cabling—see Ethernet cables (Cat6/Cat6a). If you’re wiring racks or tight spaces, confirm low-profile/half-height brackets and plan mounting with server racks & cabinets.

Performance tip: For 2.5GbE/5GbE over copper, Cat6/Cat6a reduces errors and heat. For 10GbE+ fiber, verify SR/LR optics and OM3/OM4 cable type. Power users should also check driver support for Windows, Linux, or VMware ESXi.

Typical Use Cases

Home & Gaming: Upgrade to a 2.5GbE PCIe card for faster downloads and smoother game/stream concurrency; pair with a 2.5G switch.

Creative & NAS: Move large media quickly with 10GbE PCIe NICs; use SFP+ for fiber runs to a rack or studio bay.

Virtualization & Labs: Choose dual-port/quad-port server NICs for VLANs, LACP, SR-IOV, and traffic isolation across hosts and services.

Why Add a Dedicated NIC?

Boosts wired speed and stability beyond onboard LAN, enables VLAN isolation and link aggregation, reduces CPU usage via hardware offloads, and adds flexibility for SFP/SFP+ fiber runs or multi-port redundancy and failover.

Frequently Asked Questions

Do I need 2.5GbE or is 1GbE enough?

1GbE is fine for basic browsing and streaming. If you copy large files, use fast NAS, or share bandwidth among many devices, 2.5GbE offers a noticeable speed boost—pair it with a compatible 2.5G switch.

RJ45 vs. SFP/SFP+ — which should I choose?

RJ45 over copper is convenient for short runs and existing cabling. SFP/SFP+ with fiber is better for long distances, lower latency, or electrical isolation. If you go fiber, match your card with the right optics from SFP/SFP+ transceivers.

Will a USB Ethernet adapter bottleneck my laptop?

Use USB 3.0 or USB-C models for Gigabit or faster speeds. They’re great for travel and thin-and-light PCs—browse options in Network Adapters & Ethernet Connectors.

Related Essentials

Build the whole stack: a multi-gig switch for uplinks, tidy runs with a patch panel, and protect your edge with firewalls & security.

Bestselling Network Interface Cards Reviews:

Anonymous
12/23/2024 9:55:48 AM
Great item and value. Works Great.

“ Needed to replace the onboard network adapter. This adapter was easy to install and setup. ”

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