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PPHXF 0PPHXF New COM Serial Port Card w/Cable for Pro Micro QBM1250 QCM1250 | COM Serial Module, for Desktop
- Model #: TOLDB0GZNWVDJH
- $145.99 –
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PCIe to Gigabit ETH Board for Raspberry Pi 5, PCIe Adapter Support Raspberry Pi OS, Support Power Supply via PCIe Cable, Driver-Free, Plug and Play
- Model #: LHXC6W1JU13-295
- $35.63 –
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- Model #: 641-854363000233215
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D-Link Express EtherNetwork Fast Ethernet PCI Network Adapter
- Weight: 0.46
- Package Contents: DFE-530TX+ Fast Ethernet PCI Adapter . Drivers & Manual on CD-ROM Installation Guide Wake-On-LAN Cable Standard & Low Profile Brackets
- Parts: Lifetime
- Labor: Lifetime
- Model #: DFE-530TX
- $20.00 –
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Mellanox MCX631102AN-ADAT 25Gbps PCIe 4.0 x8 ConnectX-6 Lx EN Adapter Card
- Connectors: 2 x SFP28
- Model #: MCX631102AN-ADAT
- $449.00
- $358.00 –
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- Model #: TOLDB091HTG6DQ
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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
- $166.99 –
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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
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- Part Number: 4V7G2
- Parts: 30 Days
- Labor: 30 Days
- Model #: 4V7G2
- $135.00 –
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2 Port 10G PCIe Network Card, Intel X540 chip LAN Ethernet Controller, 10G/1G/100Mbps RJ45 NIC Adapter for Windows/Linux/VMware
- Model #: 6909494160
- $58.99 –
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USB 3.0 Ethernet RJ45 Network Card Wired USB 3.0 To Gigabit LAN (10/100/1000) Mbps Network Adapter For PC Laptop Macbook Windows 10 Laptop
- Connectors: 1 x RJ45
- Class: Rj45 to USB 3.0
- Model #: N3#Q0246_B
- $14.99 –
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- Class: 10G, PCIE
- Model #: X520-DA2-E10G42BTDA
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GLOTRENDS ST7338 Dual Port 100GbE QSFP28 PCIe 3.0 x16 Network Adapter Card, Mellanox ConnectX-5, RDMA (RoCE), for Cloud H-PC Storage
- Model #: 6909494080
- $399.00 –
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C&N 2.5Gbps PCIe Ethernet Network Card with RTL8125B RJ45 LAN Adapter - Multi-Gigabit NIC, PXE Boot, Plug & Play Compatibility for Windows/Linux/macOS, Supports 2500/1000/100Mbps Speeds
- Brand: C&N
- Part Number: SAE-TXA092
- Standards: IEEE 802.3?IEEE 802.3u?IEEE 802.3ab?IEEE 802.3az?IEEE 802.3bz,IEEE 802.1P, IEEE 802.1Q
- Speed: 2.5 gigabits_per_second
- Model #: SAE-TXA092
- $22.99 –
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Mellanox ConnectX-4 Lx EN Network Adapter (MCX4121A-ACAT)
- Model #: 6909494013
- $99.00 –
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StarTech.com US1GC30W USB C to Gigabit Ethernet Adapter - White - USB 3.1 to RJ45 LAN Network Adapter - USB Type C to Ethernet (US1GC30W)
- Weight: 0.2
- Parts: 2 Year
- Model #: US1GC30W
- $36.99 –
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10Gtek For Intel I210T1 PCI-Express Network Adapter, 10/100/1000Mbps Gigabit Network Card with Intel I210 Chip Single RJ45 Port to PCI Express 2.1 x1
- Model #: I210-GE-1T-X1
- $26.00 –
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USB-C to Ethernet Adapter 2.5G, USB Type C to RJ45 LAN Ethernet 2500/1000/100/10Mbps Gigabit Network Adapter for Windows 10,8.1, 8, 7,Vista,XP,Mac OS.
Limited time offer, ends 09/26
- Standards: USB C
- Connectors: USB C to RJ45
- Package Contents: 1 x USB C to RJ45 Adapter
- Class: 2.5G, Single RJ45
- Model #: Q2197_GR
- $18.99 –
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WiFi 6E Desktop Kit Intel AX210 Bluetooth 5.2 Wifi Card 3000Mbps 802.11ax 2.4Ghz/5Ghz/6Ghz AX210NGW Wi-Fi 6 Adapter Antenna
- Model #: CWF-01
- $29.99 –
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Vszerda ST7465 M.2 B+M I226-T2 Industrial Grade 2.5G Gigabit Ethernet Card I225V PCIE Dual Electrical Port Network Card
- Model #: UJ4Y9T84UJ
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10G SFP PCIE Network Card, 82599EN Chip 10GB PCIE x1 Fiber Ethernet Adapter, with Single Mode Multi Mode DAC Cables Support, for VMware Server
- Model #: TOLDB0H1MXXKQ8
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- Brand: Intel
- Part Number: E810XXVDA2
- Standards: Ethernet
- Speed: 1000 megabits_per_second
- Model #: E810XXVDA2
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- Model #: 717381-001
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LR-LINK 1016PF-SFP+ 10Gb PCI-E NIC Network Card, PCI Express Ethernet Card LAN Adapter Support Windows Server/Windows/Linux/ESX Intel 82599 Chip Based
- Standards: IEEE 802.3az
- Connectors: 1 x SFP+
- BUS: PCI Express v2.0 (5.0GT/s)×4
- Drivers: Included
- Model #: LRES1016PF-SFP+
- $85.90 –
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- Connectors: 4 x LC Network
- Package Contents: Ethernet Server Adapter I340-F4 Informational CD Bracket
- Parts: Lifetime Limited
- Model #: E1G44HF
- $274.00 –
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SIIG DP Gigabit Ethernet PCIe
- Weight: 0.2
- Package Contents: DP Gigabit Ethernet PCIe Spare Enhanced Low Profile Bracket Driver CD User's Manual
- Parts: 5 Year
- Model #: CN-GP1021-S3
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- Brand: Intel
- Model: X520-DA2
- Part Number: E10G42BTDA
- Speed: 10Gbps
- Model #: Intel-E10G42BTDA
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2.5Gb PCIe Network Card with Intel I226-V Chip, 2500M/1000M/100M Network Adapter NIC, PCIe 3.1 X1, PCI Express Gigabit Ethernet Card for Windows 10/11, Linux Kernel 5.16.18/RHEL8.6, VMware ESXi8.0
- Brand: HP
- Standards: IEEE802.3
- Connectors: 1 x RJ45
- Windows Vista: Certified for Windows Vista
- Model #: 729842522045
- $38.19 –
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StarTech.com USB 3.0 to Gigabit Network Adapter - Silver - Sleek Aluminum Design Ideal for MacBook, Chromebook or Tablet
- Weight: 0.01
- Package Contents: USB 3.0 to Gigabit Network Adapter - Silver 1 x Quick Install Guide
- Parts: 2 Year
- Model #: USB31000SA
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:
John H.
10/19/2025 1:27:45 PM
Works great, once SFP-vendor-unlocked
“ Great price for a 10G-capable adapter ”
Intel X520-SR2 Dual Ports 10 Gigabit Ethernet Converged Network Adapter, PCI Express 2.0 x8, Low ProfileROBERT 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 | X550T2Brandon 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