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I225-V Network Card, Pci-E I225 2.5G Ethernet Server Network Card for Desktop Computers
- Model #: ooc-0142226
- $35.93 –
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C&N 5Gbps PCIe Network Adapter, RTL8126 Chip Multi-Gigabit Ethernet Card (5G/2.5G/1G/100Mbps) PCIe 3.1 X1, RJ45 LAN Controller with PXE Boot, Low Profile Bracket for Windows/Linux
- Brand: C&N
- Part Number: TXA307
- Speed: 5000 megabits_per_second
- Interface: PCI-Express
- Model #: TXA307
- $32.99 –
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- Part Number: NV5DW
- Model #: NV5DW
- $29.99 –
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10GB PCIe Network Card RJ45, RIITOP PCI-e to 10 Gigabit Ethernet Adapter, Supports Windows 11/10/8.1/8/7, Servers 2019/2016/2012 R2, and Linux
Limited time offer, ends 05/04
- Model #: PCE1X-10G-1P
- $71.95 –
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SAS3008 9300-8I IT-Mode HBA JBOD PCI-E 3.0 SATA/SAS 8-Port SAS3 12Gb/s ZFS FreeNAS unRAID+2* SFF-8643 SATA Cable
Limited time offer, ends 05/05
- Model #: 69089112171
- $75.20 –
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2.5G PCIe Network Card, YuanLey 2.5 Gigabit PCI Express Ethernet Adapter with Realtek RTL8125B, 2500Mbps NIC Card RJ45 LAN Controller for PC Windows/Linux/MAC OS with Low-Profile Bracket
- Brand: YuanLey
- Standards: IEEE 802.3
- Speed: 2.5 gigabits_per_second
- Connectors: IEEE 802.3
- Model #: 198479910343
- $35.99 –
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StarTech.com Dual Port Gigabit PCI Express Server Network Adapter Card - PCIe NIC
- Weight: 0.05
- Package Contents: Dual Port Gigabit PCI Express Server Network Adapter Card - PCIe NIC 1 x Low Profile Bracket 1 x Driver CD 1 x Instruction Manual
- Parts: 2 Year
- Model #: ST1000SPEXD4
- $114.79
- $109.95 –
- More options from $23.68 - $125.22
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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
- $32.69 –
- More options from $32.69 - $57.77
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Limited time offer, ends 05/05
- Model #: MCX4121AACAT
- $90.79 –
- More options from $90.74 - $288.61
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ATTO Technology ThunderLink NS 5102 Thunderbolt 5 to 100Gb Ethernet Adapter - Thunderbolt 5 - 100 Gbit/s Data Transfer Rate - Optical Fiber - QSFP28 - Desktop - TAA Compliant (TLNS-5102-D00)
- Brand: ATTO
- Part Number: TLNS-5102-D00
- Standards: TLNS-5102-D00
- Parts: 3 Year
- Model #: TLNS-5102-D00
- $2,399.99 –
- More options from $2,399.99 - $2,798.76
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for Intel X550-T2 10Gb NIC Network Card Copper Dual RJ45 Port PCI Express 3.0 X4 Support Windows Server/Linux/ESX
- Type: PCI Express to Ethernet Port Card
- Model #: Y06SDF98WE5
- $529.00 –
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- Connectors: 4 x RJ45
- Features: Product Family: X710 Device Supported: Server Network Technology: 10GBase-T Form Factor: Plug-in Card Media Type Supported: Twisted Pair
- Model #: X710T4
- $329.00 –
- More options from $329.00 - $399.99
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- Weight: 0.0800
- Model #: 900-9X662-0053-ST1
- $456.00 –
- More options from $456.00 - $495.00
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Single Port 2.5 Gigabit Ethernet PCI-e x1 Controller Card NIC Intel I225 Chipset
- Connectors: 1 x RJ45
- Parts: 3 Years
- Labor: 3 Years
- Model #: SY-PEX24076
- $27.95 –
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- $47.99 –
- More options from $47.99 - $49.00
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- Brand: Intel
- Model: X520-DA2
- Part Number: X520-DA2
- Standards: IEEE 802.3ae, IEEE 802.3ap, IEEE 802.3an, IEEE 802.3ad
- Model #: 11c-515452000192846
- $40.19 –
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- Parts: 30 Days
- Labor: 30 Days
- Model #: 700699-B21-REF
- $18.99 –
- More options from $18.99 - $52.51
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- $702.00 –
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2.5GB PCIe Network Card (TX201) PCIe to 2.5 Gigabit Ethernet Network Adapter, Supports Windows 11/10/8.1/8/7, Win Server 2022/2019/2016, Linux
- Brand: TP-Link
- Part Number: TX201
- Standards: Ethernet
- Speed: 2500 megabits_per_second
- Model #: 657366146413
- $53.99 –
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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
- $49.99 –
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Dual PCIe 3.1 2.5GBase-T Network Adapter with Intel I225-V / I226-V 2500/1000/100Mbps PCI Express Gigabit Ethernet NIC Card RJ45 LAN Controller for Windows 10/11 with Low Profile Bracket
- Brand: HP
- Standards: IEEE802.3
- Drivers: 1 x Low profile bracket
- Features: 2.5 gigabits_per_second, Desktop, 1 x PCIe I225-V Single-2.5G Network Card, 1 x User’s Manual, 1 x Low profile bracket, 1 Year
- Model #: 685605721307
- $81.99 –
- More options from $81.99 - $85.99
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Silicom Lisbon ACC100 FEC Accelerator PCIe x16 Gen 3 4G 5G Turbo LDPC Encoding Intel eASIC Nextreme-3S Ideal for Xeon Servers 03X3K5 3X3K5 P3IMB-M-P2
- Model #: 03X3K5 3X3K5
- $100.00 –
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BrosTrend 5Gb PCIe Network Card, PCIe Ethernet Card with Extra Low-Profile, PCI Express Network Adapter for PC Windows 11/10 & Windows Server 2022 ONLY, PCI-e to 5 Gigabit NIC Lifetime Protection
- Brand: BrosTrend
- Part Number: 5 Gbps PCIe Network Card
- Standards: IEEE 802.3/u/ab/az/bz
- Speed: 5 gigabits_per_second
- Model #: 593124586280
- $69.99 –
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PCIe 4.0 X1 to RJ45 10G Ethernet Network Card RTL8127 Chip High-Speed LAN Adapter with Multi-Speed Compatible with Windows/Linux Desktop, Server, and Gaming PC
Limited time offer, ends 05/27
- Model #: C12Y-ZY1282
- $65.99 –
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Mellanox ConnectX-3 10Gigabit Ethernet Card
- Model #: MCX354A-TCBT
- $28.88 –
- More options from $28.88 - $32.01
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RJ45 4-Port Gigabit Network Card Ethernet Server PCIE Network Card Adapter PCI-E X1 Interface
- Model #: ooc-0142404
- $57.54 –
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2.5GbE Ethernet Network Adapter Intel-I225 Chips Based 10/100/1000/2.5GBASE-T (TX) Network Card Single Port RJ45
- Connectors: 1 x RJ45
- Wake On LAN: Yes
- Windows Vista: Works with Windows Vista
- Model #: K0659
- $29.00 –
- Free Shipping
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AX211 WIFI 6E CNVio2 Adapter w/Tri Band 2.4 | 5 | & 6GHz AX211NGW 2.4Gbps 802.11ax Wireless CRF Card Bluetooth 5.3 Compatible No vPro
Limited time offer, ends 05/05
- Windows Vista: Windows 10, Windows 11, Linux
- Parts: 30 Days
- Labor: 30 Days
- Model #: 655360792715
- $18.97 –
- More options from $18.97 - $34.97
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Limited time offer, ends 05/05
- Model #: MCX623106AC-CDAT
- $1,448.80 –
- More options from $1,389.00 - $1,798.00
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- $18.99 –
- $4.99 Shipping
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- Connectors: 2 x RJ45
- Model #: X557T2OCPG1P5
- $371.99 –
- More options from $371.99 - $1,547.78
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Mellanox Technologies MCX516A-CDAT CONNECTX-5 EX EN Network Interface Card, 100GBE Dual-Port QSFP28, PCIE4.0 X16, T
Limited time offer, ends 05/05
- Model #: 6907775502
- $429.18 –
- More options from $428.99 - $687.00
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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
11/17/2025 9:14:36 AM
Excellent performance
“ Drivers can be found at: downloadcenter.intel.com Select "Active Products" => "Network Connectivity" => "Intel Desktop Adapters" => "Intel Pro/1000 GT adapter". ”
Intel EXPI9301CTBLK Network Adapter 10/100/1000Mbps PCI-Express 1 x RJ45Mc
10/6/2023 5:13:51 PM
Net Issue? TP-Link TG-3468 has you covered!
“ If I ever need another network adapter card this will be my top choice ”
TP-Link 10/100/1000Mbps Gigabit Ethernet PCI Express, PCIE Network Adapter / Network Card / Ethernet Card for PC, Win10 supported (TG-3468)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