• In Stock
  • Sold by Newegg
  • Make an Offer
  • New
Brands
Show More
Price
Show More
Speed
Show More
Connectors
Show More
Interface
Show More
Wake On LAN
Sold by
All Top Brands
Availability
Condition
Current Promotion
Discount
Useful Links
Customer Ratings
  • Ethernet SuperNICs
  • Ethernet SuperNICs
  • Likewize Home Tech Protect
  • Featured Brands

    See Deals from IntelSee Deals from NVIDIASee Deals from TP-LinkSee Deals from Netgear Inc.See Deals from ASUS
Sort By:
View:
PCIe WiFi 6 Network Card Wireless Adapter Bluetooth 5.0 AX 3000 Mbps AX200 Dual Band 5.GHz/2.4GHz PCI-E Wireless WiFi Network Adapter Card for Desktop Windows 10 64-bit eokCXOY
Quick View
  •  
  • $38.09 
  • Free Shipping
  • $36.89 - $38.09
Dell Solarflare S7120 NIC | 4C7RT | Dual Port 10GbE SFP+ PCIe 3.0 x8 Network Interface Card
Quick View
DELL
Refurbished Dell Solarflare S7120 NIC | 4C7RT | Dual Port 10GbE SFP+ PCIe 3.0 x8 Network Interface Card
  • Part Number: 4C7RT
  • Dimensions: 7.2 x 5.4 x 1.1 inches
  • Weight: 0.5 lbs
  • Model #: 4C7RT
  •  
  • $24.99 
  • Free Shipping
Intel - X710T2LBLK - Intel Ethernet Network Adapter X710-T2L - BLK - PCI Express 3.0 x 8 - 2 Ports (s) - BLK
Quick View
Intel - X710T2LBLK - Intel Ethernet Network Adapter X710-T2L - BLK - PCI Express 3.0 x 8 - 2 Ports (s) - BLK
  • Connectors: 2 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 #: X710T2LBLK
StarTech.com Dual Port PCI Express Gigabit Ethernet PCIe Network Card Adapter
Quick View
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 Mini PCI Express Gigabit Ethernet Network Adapter NIC Card
Quick View
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 
  • Free Shipping
StarTech.com 4 Port Gigabit Power over Ethernet PCIe Network Card - PSE / PoE PCI Express NIC
Quick View
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
Intel X710DA2BLK PCIe 3.0, x8 Dual port Ethernet Converged Network Adapter
Quick View
Intel
Intel X710DA2BLK PCIe 3.0, x8 Dual port Ethernet Converged Network Adapter
  • Package Contents: Ethernet Converged Network Adapter X540-T1 Information CD Low-Profile Bracket
  • Parts: Manufacturers Limited Warranty: Lifetime / Parts Only
  • Model #: X710DA2BLK
Vertiv Liebert RDU101 IntelliSlot  - Network Card | Remote Monitoring - Data Center Monitoring| Adapter| 10Mb LAN/100Mb LAN| SNMP| USB Port
Quick View
Vertiv Liebert RDU101 IntelliSlot - Network Card | Remote Monitoring - Data Center Monitoring| Adapter| 10Mb LAN/100Mb LAN| SNMP| USB Port
  • Type: Consumer Electronics
  • Features: Quick, real-time view of parametric data and system statuses. Prompt alarm notification for fast event resolution. Know environmental conditions of your data center for informed, efficient decision making. Flexible communication regardless of device protocol. Peace of mind knowing data is transported in a secure manner. Save time configuring and updating firmware on managed devices.
  • Model #: RDU101
Intel E10GSFPLR 10Gbps Dual Rate 10GBASE-LR SFP+ Module
Quick View
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 PCI Express Gigabit Ethernet Fiber Network Card w/ Open SFP - PCIe SFP Network Card Adapter NIC
Quick View
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
StarTech.com 10G Network Card, 2x 10G Open SFP+ Multimode LC Fiber Connector, Intel 82599 Chip
Quick View
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 PEX867WAC22  PCI Express AC1200 Dual Band Wireless-AC Network Adapter - PCIe 802.11ac WiFi Card
Quick View
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
StarTech.com PCI Express (PCIe) Gigabit Ethernet Multimode SC Fiber Network Card Adapter NIC - 550m
Quick View
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 AC600 Wireless-AC Network Adapter - 802.11ac, PCI Express - Dual Band 2.4GHz and 5GHz Wireless Network Card
Quick View
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
Allied Telesis AT-2711FX/ST-901 100Mbps PCI-Express Network adapter
Quick View
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
  •  
  • $179.99 
  • Save: 13%
  • Free Shipping
StarTech ST3300U3S USB 3.0 to Gigabit Ethernet NIC Network Adapter with 3 Port Hub - White
Quick View
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
  •  
  • $60.99 
  • Free Shipping
StarTech.com PEX40GQSFPI QSFP+ Server Network Card - PCIe 40Gbps - Converged Fiber NIC Adapter - Intel XL710 Chip (PEX40GQSFPI)
Quick View
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 Dual Port PCI Express (PCIe x4) Gigabit Ethernet Server Adapter Network Card - Intel i350 NIC
Quick View
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 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
Quick View
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
HPE Broadcom BCM57416 Ethernet 10Gb 2-Port Base-T Network Adapter P26253B21
Quick View
  • $1,326.00
  •  
  • $278.99 
  • Save: 78%
  • Free Shipping
StarTech US1GC30A USB-C to Gigabit Ethernet Adapter - Aluminum - Thunderbolt 3 Port Compatible - USB Type C Network Adapter
Quick View
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
StarTech.com USB-C to Ethernet Gigabit Adapter - Thunderbolt 3 Compatible - USB Type C Network Adapter - USB C Ethernet Adapter
Quick View
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
NVIDIA ConnectX-5 Ex EN network interface card, 100GbE dual-port QSFP28, PCIe Gen 4.0 x16, tall bracket | MCX516A-CDAT
Quick View
NVIDIA ConnectX-5 InfiniBand/Ethernet adapter card, EDR IB (100Gb/s) and 100GbE, single-port QSFP28, PCIe 3.0 x16, tall bracket | MCX555A-ECAT
Quick View
NVIDIA
NVIDIA ConnectX-5 InfiniBand/Ethernet adapter card, EDR IB (100Gb/s) and 100GbE, single-port QSFP28, PCIe 3.0 x16, tall bracket | MCX555A-ECAT
  • Brand: NVIDIA
  • Part Number: MCX555A-ECAT
  • Speed: InfiniBand: SDR/DDR/QDR/FDR/EDREthernet: 10/25/40/50/100 Gb/s
  • Connectors: Single-port QSFP28
  • Model #: MCX555A-ECAT
Broadcom BCM957504-N1100G 100Gbps Network Adapter
Quick View
Broadcom BCM957504-N1100G 100Gbps Network Adapter
  • Brand: Broadcom
  • Speed: 100Gbps
  • Connectors: 1 x QSFP56
  • Features: Standards-compliant 100/50/25/10G single-port QSFP56 OCP 3.0 adapter with line-rate, full-duplex throughput NIC partitioning supporting 16 physical functions (PFs) TruFlow engine for intelligent flow processing to increase server VM density and accelerate vSwitch processing Industry's most secure OCP 3.0 adapter solution leveraging Broadcom's BroadSAFE technology to provide unparalleled platform security via Silicon Root of Trust New end-to-end congestion avoidance and management to anticipate and eliminate congestion before it happens Support for advanced networking technologies including RoCE, SDN, NFV and virtualization TruManage enhances server manageability and security for data center deployments Multi-host allows multiple compute and storage nodes to seamlessly connect t...
  • Model #: BCM957504-N1100G
NVIDIA ConnectX-7 200Gigabit Ethernet Card - PCI Express 5.0 x16 - 2 Port(s) - Optical Fiber - OCP 3.0 Bracket Height - QSFP112 - Plug-in Card | MCX753436MS-HEAB
Quick View
NVIDIA
NVIDIA ConnectX-7 200Gigabit Ethernet Card - PCI Express 5.0 x16 - 2 Port(s) - Optical Fiber - OCP 3.0 Bracket Height - QSFP112 - Plug-in Card | MCX753436MS-HEAB
  • Brand: NVIDIA
  • Part Number: MCX753436MS-HEAB
  • Speed: Data Rate InfiniBand: NDR200/HDR/HDR100/EDR/FDR/ SDR Ethernet: 200/100/50/25/10 Gb/s
  • Interface: PCI Express Gen 5.0/4.0: SERDES @ 16/32GT/s, x16 lanes (4.0 and 3.0 compatible) Networking Port: Dual-Port QSFP112 InfiniBand and Ethernet
  • Model #: MCX753436MS-HEAB
  •  
  • $1,699.99 
  • Free Shipping
Lenovo ThinkPad USB3.0 to Ethernet Adapter
Quick View
Lenovo
Lenovo ThinkPad USB3.0 to Ethernet Adapter
  • Part Number: 4X90S91830
  • Features: Product Type:Gigabit Ethernet Card
  • Weight: 0.08
  • Model #: 4X90S91830
StarTech 2-Port 2.5Gbps NBASE-T PoE Network Card, Dual Intel I225-V, 802.3af/at PoE+ Multi-Gigabit NIC, PCI Express Server LAN Card, LP4/8-Pin PCIe-Powered  Model PR22GIP-NETWORK-CARD
Quick View
StarTech 2-Port 2.5Gbps NBASE-T PoE Network Card, Dual Intel I225-V, 802.3af/at PoE+ Multi-Gigabit NIC, PCI Express Server LAN Card, LP4/8-Pin PCIe-Powered Model PR22GIP-NETWORK-CARD
  • Brand: StarTech
  • Model: PR22GIP-NETWORK-CARD
  • Part Number: PR22GIP-NETWORK-CARD
  • Standards: IEEE 802.3at Power over Ethernet, IEEE 802.3af Power over Ethernet, IEEE 802.3bz (2.5GBASE-T), IEEE 802.3ab (1000BASE-T ), IEEE 802.3u (100BASE-TX ), IEEE 802.3i (10BASE-TX), IEEE 802.1Q (VLAN), IEEE 802.1p (QoS), IEEE 802.1AS (AVB), IEEE 802.1X (WoL), IEEE P802.3az (EEE), IEEE 1588 (PTP), PCI Express Version 2
  • Model #: PR22GIP-NETWORK-CARD
Lenovo ThinkPad Ethernet Extension Adapter Gen 2
Quick View
Lenovo ThinkPad Ethernet Extension Adapter Gen 2
  • Part Number: 4X90Q84427
  • Features: Product Type:Ethernet Card
  • Weight: 0.05
  • Model #: 4X90Q84427
Intel Ethernet Network Adapter E810-XXVDA4 (Low Profile) - Increase port density and optimize workload performance
Quick View
Allied Telesis AT-2911SX Gigabit Ethernet Card
Quick View
Allied Telesis AT-2911SX Gigabit Ethernet Card
  • Weight: 0.25
  • Model #: AT-2911SX/SC-901
StarTech.com Dual Port 10G PCIe Network Adapter Card, Intel-X550AT 10GBASE-T PCI Express 10GbE Multi Gigabit Ethernet 5 Speed NIC 2 Port
Quick View
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
StarTech 4-Port Gigabit Ethernet Card P041GINETWORKCARD
Quick View

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