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Intel Dual SFP28 Ports 25/10/1GbE Ethernet Network Adapter E810-XXVDA2
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StarTech.com USB 3.0 to Gigabit Ethernet Adapter NIC w/ USB Port - Black
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StarTech.com USB 3.0 to Gigabit Ethernet Adapter NIC w/ USB Port - Black
  • Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab
  • Connectors: 1 x RJ45
  • Dimensions: 5" x 1.4" x 0.7"
  • Weight: 1.5 oz [42 g]
  • Model #: USB31000SPTB
  •  
  • $43.99 
  • Free Shipping
StarTech.com Mini PCI Express Gigabit Ethernet Network Adapter NIC Card
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StarTech.com Mini PCI Express Gigabit Ethernet Network Adapter NIC Card
  • Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab
  • Connectors: 1 x RJ45
  • LEDs: 1 - Activity 1 - Link
  • Wake On LAN: Yes
  • Model #: ST1000SMPEX
  •  
  • $55.99 
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StarTech.com USB 3.0 to Dual Port Gigabit Ethernet Adapter NIC w/ USB Port
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StarTech.com USB 3.0 to Dual Port Gigabit Ethernet Adapter NIC w/ USB Port
  • Weight: 0.3
  • Package Contents: USB 3.0 to Dual Port Gigabit Ethernet Adapter NIC w/ USB Pass-Through 1 x Driver CD 1 x Instruction Manual
  • Parts: 2 Year
  • Labor: 2 Year
  • Model #: USB32000SPT
  •  
  • $66.99 
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StarTech.com 10G Network Card - NBASE-T - RJ45 Port - Intel X550 chipset - Ethernet Card - Network Adapter - Intel NIC Card
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StarTech.com 10G Network Card - NBASE-T - RJ45 Port - Intel X550 chipset - Ethernet Card - Network Adapter - Intel NIC Card
  • Connectors: 1 x RJ45
  • LEDs: 1 x Link/Activity 1 x 10G/1G Speed
  • Temperature: Operating Temperature 5 to 50 degree C (41 to 122 degree F) Storage Temperature -20 to 60 degree C (-4 to 140 degree F)
  • Humidity: 20~80%
  • Model #: ST10000SPEXI
StarTech ST3300U3S USB 3.0 to Gigabit Ethernet NIC Network Adapter with 3 Port Hub - White
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StarTech ST3300U3S USB 3.0 to Gigabit Ethernet NIC Network Adapter with 3 Port Hub - White
  • Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3az USB 3.0 rev. 1.0
  • Connectors: 1 x RJ45
  • LEDs: 1 - Blue - Power 1 - Green - Network Link (solid) / Activity (flashing)
  • Wake On LAN: Yes
  • Model #: ST3300U3S
  •  
  • $57.99 
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StarTech.com 2-Port 10Gbps PCIe Network Adapter Card, Network Card for PC/Server, PCIe Ethernet Card w/Jumbo Frame, NIC/LAN Interface Card
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StarTech.com 2-Port 10Gbps PCIe Network Adapter Card, Network Card for PC/Server, PCIe Ethernet Card w/Jumbo Frame, NIC/LAN Interface Card
  • Part Number: ST10GSPEXNDP2
  • Standards: IEEE 802.3an (10GBASE-T) 802.3bz (5GBASE-T) 802.3bz (2.5GBASE-T) IEEE 802.3ab (1000BASE-T) IEEE 802.3u (100BASE-T) IEEE 802.3 (10BASE-T) IEEE P802.3az Energy Efficient Ethernet (EEE) IEEE 1588 (PTP) Wake-on-LAN (WOL) PCI Express Version 3.0
  • Connectors: 2 x RJ45
  • Wake On LAN: Yes
  • Model #: ST10GSPEXNDP2
StarTech.com USB 3.0 to Gigabit Network Adapter with Built-In 2-Port USB Hub - Native Driver Support (Windows, Mac and Chrome OS)
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StarTech.com USB 3.0 to Gigabit Network Adapter with Built-In 2-Port USB Hub - Native Driver Support (Windows, Mac and Chrome OS)
  • Standards: IEEE 802.3 10BASE-T, IEEE 802.3ab 1000BASE-T, IEEE 802.3u 100BASE-TX and IEEE 802.3X Full Duplex
  • Connectors: 1 - USB 3.0 A (9 pin; SuperSpeed) Male 1 - RJ-45 Female 2 - USB 3.0 A (9 pin; SuperSpeed) Female
  • Temperature: Operating Temperature:0 degree C to 70 degree C (32 degree F to 158 degree F) Storage Temperature: -10 degree C to 55 degree C (14 degree F to 131 degree F)
  • Humidity: 40% ~ 50%
  • Model #: USB31000S2H
  •  
  • $49.99 
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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
  •  
  • $161.99 
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StarTech US1GC30A USB-C to Gigabit Ethernet Adapter - Aluminum - Thunderbolt 3 Port Compatible - USB Type C Network Adapter
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StarTech US1GC30A USB-C to Gigabit Ethernet Adapter - Aluminum - Thunderbolt 3 Port Compatible - USB Type C Network Adapter
  • Standards: IEEE 802.3, 802.3u and 802.3ab
  • Connectors: 1 x RJ45
  • Parts: Manufacturers Limited Warranty: 2 Year / Parts Only
  • Model #: US1GC30A
  •  
  • $37.99 
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StarTech.com USB-C to Ethernet Gigabit Adapter - Thunderbolt 3 Compatible - USB Type C Network Adapter - USB C Ethernet Adapter
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StarTech.com USB-C to Ethernet Gigabit Adapter - Thunderbolt 3 Compatible - USB Type C Network Adapter - USB C Ethernet Adapter
  • Connectors: 1 x RJ45
  • LEDs: 1 x 1 - 10/100 Link/Activity (Green) 1 x Gigabit Link/Activity (Amber)
  • Temperature: 0°C ~ 50°C
  • Humidity: 5% ~ 80% RH
  • Model #: US1GC301AU
  •  
  • $48.99 
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StarTech.com 1 Port 2.5Gbps PoE Network Card, PCIe Ethernet Card w/RJ45, 30W 802.3at PoE NIC for Desktops/Servers ST1000PEXPSE
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StarTech.com 1 Port 2.5Gbps PoE Network Card, PCIe Ethernet Card w/RJ45, 30W 802.3at PoE NIC for Desktops/Servers ST1000PEXPSE
  • Part Number: ST1000PEXPSE
  • Standards: IEEE802.3at Power over Ethernet (25 W) IEEE802.3af Power over Ethernet (15 W) IEEE 802.3bz (2.5GBASE-T) IEEE 802.3ab (1000BASE-T ) IEEE 802.3u (100BASE-TX ) IEEE 802.3i (10BASE-T) IEEE P802.3az Energy Efficient Ethernet (EEE) IEEE802.1Q (VLAN tagging) Wake-on-LAN (WOL) PCI Express Version 2.1
  • Connectors: 1 x RJ45
  • Wake On LAN: Wake-on-LAN (WOL)
  • Model #: ST1000PEXPSE
StarTech.com 10G Network Card, 1x Single 10G SPF+ Slot, Intel 82599 Chip
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StarTech.com 10G Network Card, 1x Single 10G SPF+ Slot, Intel 82599 Chip
  • Connectors: 1 x SFP+
  • Temperature: Operating Temperature 5 to 50 degree C (41 to 122 degree F) Storage Temperature -20 to 60 degree C (-4 to 140 degree F)
  • Humidity: 20~80% RH
  • Dimensions: 4.70" x 5.30" x 0.70"
  • Model #: PEX10000SFPI
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
  •  
  • $32.99 
  • Free Shipping
NVIDIA ConnectX-6 Dx Ethernet SmartNIC - PCI Express 4.0 x16 - 100 Gbit/s Data Transfer Rate - 2 Port(s) - Optical Fiber - 100GBase-X - QSFP56 - Plug-in Card | MCX623106AN-CDAT
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StarTech.com Dual Port 40G QSFP+ Network Card - Intel XL710 Open QSFP+ Converged Adapter PCIe 40 Gigabit Fiber Ethernet Server 40GbE NIC
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StarTech.com Dual Port 40G QSFP+ Network Card - Intel XL710 Open QSFP+ Converged Adapter PCIe 40 Gigabit Fiber Ethernet Server 40GbE NIC
  • Part Number: PEX40GQSFDPI
  • Dimensions: Height: 0.8" Width: 4.8" Depth: 7.1"
  • Weight: Weight (Approximate): 4.50 oz
  • Model #: PEX40GQSFDPI
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
  • $419.99
  •  
  • $370.99 
  • Save: 11%
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StarTech US1GC30DB USB C to Gigabit Ethernet Adapter - USB C Network Adapter
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StarTech US1GC30DB USB C to Gigabit Ethernet Adapter - USB C Network Adapter
  • Standards: IEEE 802.3, 802.3u and 802.3ab
  • Connectors: 1 x RJ45
  • BUS: USB 3.0
  • LEDs: 1 x Power 1 x Activity
  • Model #: US1GC30DB
Edimax EU-4208 USB 2.0 to 10/100Mbps Fast Ethernet LAN Wired Network Adapter for Windows XP/ Vista / 7 / 8 / 8.1, Macbook Air, and Linux (ASIX AX88772B chipset)
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Edimax EU-4208 USB 2.0 to 10/100Mbps Fast Ethernet LAN Wired Network Adapter for Windows XP/ Vista / 7 / 8 / 8.1, Macbook Air, and Linux (ASIX AX88772B chipset)
  • Standards: IEEE802.3, IEEE802.3u
  • Connectors: 1 x RJ45
  • Dimensions: 2.5" x 1" x 0.6" (66 x 22 x 15 mm)
  • Weight: 25g
  • Model #: EU-4208
  •  
  • $24.99 
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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
StarTech.com 4-Port Gigabit Ethernet Network Card w/ Intel Chip, PCI Express, Intel I350 NIC - Quad Port PCIe
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StarTech.com 4-Port Gigabit Ethernet Network Card w/ Intel Chip, PCI Express, Intel I350 NIC - Quad Port PCIe
  • Standards: IEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX, IEEE 802.3ab 1000BASE-T IEEE 802.1Q VLAN Tagging IEEE 802.3x Full Duplex Flow Control
  • Connectors: 4 x RJ45
  • LEDs: 4 x 100/1000 Mbps Indicator 4 x Link / Activity
  • Wake On LAN: Yes
  • Model #: ST4000SPEXI
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
  •  
  • $34.99 
  • Free Shipping
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
Nvidia MCX75310AAS-HEAT ConnectX-7 200Gigabit Ethernet Card - PCI Express 5.0 x16 - 1 Port(s) - Optical Fiber - HHHL Bracket Height - OSFP - Standup
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StarTech.com PCI Express Gigabit Ethernet Fiber Network Card w/ Open SFP - PCIe SFP Network Card Adapter NIC
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StarTech.com PCI Express Gigabit Ethernet Fiber Network Card w/ Open SFP - PCIe SFP Network Card Adapter NIC
  • Weight: 0.45
  • Package Contents: 1 Port PCI Express Gigabit SFP Network Card 1 x Low Profile Bracket 1 x Driver CD 1 x Instruction Manual
  • Parts: 2 Year
  • Labor: 2 Year
  • Model #: PEX1000SFP2
  •  
  • $222.99 
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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
Transition Networks N-GXE-LC-02 Gigabit Ethernet Card
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Transition Networks N-GXE-LC-02 Gigabit Ethernet Card
  • Package Contents: N-GXE-LC-02 Gigabit Ethernet Card Low-Profile Bracket
  • Parts: Lifetime
  • Model #: N-GXE-LC-02-S25
100Gbps Network Adapter
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100Gbps Network Adapter
  • Model #: BCM957508-N2100G
Intel Ethernet Server Adapter I350-T2
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Intel
Intel Ethernet Server Adapter I350-T2
  • Weight: 0.36
  • Parts: Lifetime
  • Labor: 30 DAYS WARRANTY
  • Model #: I350T2V2
Intel® EXPI9301CT Comparable 10/100/1000Mbs Single RJ-45 Port 100m PCIe 2.0 x4 Network Interface Card
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Intel® EXPI9301CT Comparable 10/100/1000Mbs Single RJ-45 Port 100m PCIe 2.0 x4 Network Interface Card
  • Standards: IEEE 802.3
  • Connectors: RJ-45
  • Dimensions: 5.2 in. x 0.9 in. x 4.7 in.
  • Weight: 9.60 oz
  • Model #: EXPI9301CT-AO
  •  
  • $32.99 
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Transition Networks N-GXE-POE-LC-01 Gigabit Ethernet Card
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Transition Networks N-GXE-POE-LC-01 Gigabit Ethernet Card
  • Package Contents: N-GXE-POE-LC-01 Gigabit Ethernet Card Low Profile Bracket
  • Parts: Lifetime
  • Model #: N-GXE-POE-LC-01
ATTO FFRM-N322-DA0 25Gigabit Ethernet Card
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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
Intel Ethernet Converged Network Adapter X710 10 GbE, Dual-port | X710DA2
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Intel Ethernet Converged Network Adapter X710 10 GbE, Dual-port | X710DA2
  • Connectors: 2 x RJ45
  • Weight: 10
  • Package Contents: Ethernet Converged Network Adapter X540-T1 Information CD Low-Profile Bracket
  • Parts: Lifetime
  • Model #: X710DA2
Nvidia MCX75310AAC-NEAT Gremlin 7 Carmel 1-Port IB Adapter Card - NDR w/ Tall Bracket NC/NR
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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