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IBM 49Y4230 10/100/1000Mbps PCI-Express I340-T2 Intel Gigabit Ethernet Dual Port Server Adapter
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IBM 49Y4230 10/100/1000Mbps PCI-Express I340-T2 Intel Gigabit Ethernet Dual Port Server Adapter
  • Standards: IEEE 802.3, IEEE 802.1Q, IEEE 802.1p, IEEE 802.3ad (LACP)
  • Connectors: 2 x RJ45
  • Wake On LAN: Yes
  • Dimensions: 5.51" x 2.76" x 0.63" (Low-profile)
  • Model #: 49Y4230
IBM 39Y6066 10/100/1000Mbps PCI-Express NetXtreme II Ethernet Adapter
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IBM 39Y6066 10/100/1000Mbps PCI-Express NetXtreme II Ethernet Adapter
  • Connectors: 1 x RJ45
  • Dimensions: 2.80" x 2.80" x 0.70"
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: 39Y6066
TRENDnet TEG-PCITXR 10/100/1000Mbps PCI Gigabit Network Adapter
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TRENDnet TEG-PCITXR 10/100/1000Mbps PCI Gigabit Network Adapter
  • Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab, ANSI/IEEE 802.3 Auto-Negotiation, PCMCIA 2.x
  • Connectors: 1 x RJ45
  • BUS: 32-Bit 33/66Mhz PCI Rev 2.1/2.2/2.3
  • LEDs: Link, Activity
  • Model #: TEG-PCITXR
  •  
  • $45.00 
  • Free Shipping
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
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
Lenovo ThinkServer I350-T2 PCIe 1 Gb 2-Port Base-T Ethernet Adapter by Intel
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  •  
  • $69.99 
  • Free Shipping
U3867 0U3867 DELL INTEL PRO/1000 PT Single Port PCI-E FP GIGABIT NETWORK CARD
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C&N 10Gb SFP+ Ethernet Network Card with Intel 82599EN Controller, PCIE 2.0 X4 Interface, Support Windows 11/10/Windows Server/Linux/ESX/VMware ESXi(Not Support Mac OS)
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  •  
  • $32.99 
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C&N 10Gb Open SFP+ PCI-e Network Card, with Intel 82599(X520-DA1) Controller, 10Gbps Ethernet Adapter, 10Gbe 10G NIC Card, Support Windows/Windows Server/VMware/Remote Wake-Up/PXE/UEFI
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  •  
  • $39.99 
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Dell 3N9XX VRTX PCIe Pass-Through Mezzanine Adapter for PowerEdge Blade Servers 03N9XX
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DELL
Dell 3N9XX VRTX PCIe Pass-Through Mezzanine Adapter for PowerEdge Blade Servers 03N9XX
  • Part Number: 3N9XX+AA
  • Connectors: Pass-through interface (connects internally to VRTX chassis I/O module)
  • Features: Designed for Dell PowerEdge M520 (and other VRTX blades) Enables direct PCIe pass-through to VRTX I/O modules No switching or logic – direct external switch integration Low power, low latency
  • Package Contents: 1x Dell 3N9XX Pass-Through Mezzanine Card
  • Model #: 03N9XX
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  • $20.00 
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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
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
StarTech.com 4 Port Gigabit Power over Ethernet PCIe Network Card - PSE / PoE PCI Express NIC
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StarTech.com 4 Port Gigabit Power over Ethernet PCIe Network Card - PSE / PoE PCI Express NIC
  • Weight: 0.8
  • Package Contents: 4 Port Gigabit Power over Ethernet PCIe Network Card - PSE / PoE PCI Express NIC 1 x Driver CD 1 x Instruction Manual
  • Model #: ST4000PEXPSE
StarTech.com 4-Port PCI Express Gigabit Network Adapter Card, Quad-Port PCIe Gigabit NIC
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StarTech.com 4-Port PCI Express Gigabit Network Adapter Card, Quad-Port PCIe Gigabit NIC
  • Standards: Compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
  • Connectors: 1 - PCI Express x4 Male
  • Temperature: Operating Temperature: 0 degree C to 55 degree C (32 degree F to 131 degree F) Storage Temperature: -40 degree C to 75 degree C (-40 degree F to 167 degree F)
  • Humidity: 5 % ~ 95 % (Non-condensing)
  • Model #: ST1000SPEX43
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
  •  
  • $29.99 
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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
StarTech.com 2-Port 10Gbps USB-A & USB-C PCIe Card Adapter - USB 3.2 Gen 2 PCI Express Expansion Add-On Card - Windows, macOS, Linux
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StarTech.com 2-Port 10Gbps USB-A & USB-C PCIe Card Adapter - USB 3.2 Gen 2 PCI Express Expansion Add-On Card - Windows, macOS, Linux
  • Part Number: PEXUSB311AC3
  • Dimensions: Height: 0.7" Width: 3.2" Length: 4.7"
  • Weight: Weight (Approximate): 1.70 oz
  • Package Contents: USB Adapter 1 x Low Profile Bracket 1 x Quick Start Guide
  • Model #: PEXUSB311AC3
StarTech PEX867WAC22  PCI Express AC1200 Dual Band Wireless-AC Network Adapter - PCIe 802.11ac WiFi Card
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StarTech PEX867WAC22 PCI Express AC1200 Dual Band Wireless-AC Network Adapter - PCIe 802.11ac WiFi Card
  • Wireless Data Rates: 1.17 Gbps
  • Standards: IEEE 802.11ac
  • Color: Black
  • Features: Add high speed 802.11ac WiFi connectivity to a desktop PC through a PCI Express slot with dual band 2.4 / 5GHz frequencies and up to 867Mbps PCI Express AC1200 Dual Band Wireless-AC Network Adapter PCIe 802.11ac WiFi Card Wireless-AC Card - 802.11a/b/g/n/ac 2 Transmitter / 2 Receiver (2x2:2) antenna configuration
  • Model #: PEX867WAC22
  •  
  • $92.99 
  • Free Shipping
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 AC600 Wireless-AC Network Adapter - 802.11ac, PCI Express - Dual Band 2.4GHz and 5GHz Wireless Network Card
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StarTech.com AC600 Wireless-AC Network Adapter - 802.11ac, PCI Express - Dual Band 2.4GHz and 5GHz Wireless Network Card
  • Part Number: PEX433WAC11
  • Dimensions: Height: 0.9" Width: 3.8" Depth: 4.8"
  • Weight: Weight (Approximate): 1.70 oz
  • Package Contents: AC600 Wireless-AC Network Adapter - 802.11ac, PCI Express Driver CD Low Profile Bracket Quick Start Guide
  • Model #: PEX433WAC11
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
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  • $59.99 
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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
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
  •  
  • $172.99 
  • Free Shipping
StarTech.com PEX40GQSFPI QSFP+ Server Network Card - PCIe 40Gbps - Converged Fiber NIC Adapter - Intel XL710 Chip (PEX40GQSFPI)
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StarTech.com PEX40GQSFPI QSFP+ Server Network Card - PCIe 40Gbps - Converged Fiber NIC Adapter - Intel XL710 Chip (PEX40GQSFPI)
  • Type: QSFP+ Server Network Card
  • External Ports: 1 - QSFP+ Female
  • Internal Ports: 1 - PCI Express x8 Male
  • Standard: IEEE 802.3ba 40GBASE-SR4 IEEE 802.3ba 40GBASE-LR4 PCI Express Rev 3.0, using PCIe x8 (or higher) slot
  • Model #: PEX40GQSFPI
StarTech.com PCI Express (PCIe) Gigabit Ethernet Multimode SC Fiber Network Card Adapter NIC - 550m
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StarTech.com PCI Express (PCIe) Gigabit Ethernet Multimode SC Fiber Network Card Adapter NIC - 550m
  • Dimensions: Height: 4.6" Width: 0.7" Length: 4.7"
  • Weight: Weight (Approximate): 2.30 oz
  • Package Contents: 1 Port PCI Express Gigabit Fiber Network Card 1 x Low Profile Bracket 1 x Driver CD 1 x Instruction Manual
  • Model #: PEX1000MMSC2
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

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
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
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