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QNAP QXG-2G2T-I225 Dual Port 2.5GbE 4-Speed Network Card
- Model #: QXG2G2TI225
- $112.00 –
- More options from $112.00 - $284.30
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- Brand: Intel
- Model #:
- $19.99 –
- More options from $19.99 - $23.12
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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 05/16
- 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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StarTech.com 1 Port PCI Express Gigabit Ethernet Network Card - Intel I210 NIC - Single Port PCIe Network Adapter Card w/ Intel Chip
- 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: 1 x RJ-45 Female
- LEDs: 1 x 100/1000 Mbps Indicator 1 x Link / Activity
- Dimensions: 0.71" x 4.72" x 2.60"
- Model #: ST1000SPEXI
- $42.91 –
- More options from $25.09 - $46.93
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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
- $201.99 –
- More options from $25.09 - $257.00
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2.5GBase-T PCI Express Gigabit Network Card for Gaming, Streaming, 2.5G/1G/100Mbps PCIe Ethernet Network Adapter RJ45 LAN Controller for PC, Support Windows 10/11, Standard & Low-Profile Brackets
Limited time offer, ends 05/05
- Model #: C1JG-L-21051
- $24.99 –
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- Connectors: 2 Slots
- Dimensions: 2.70" x 6.60"
- Model #: 581201-B21
- $36.21
- $34.09 –
- Save: 5%
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IOCREST IO-M2F113-GLAN, M.2 (B+M Key) to Single-Port 10G Gigabit Network Adapter, AQC113 Chip, 1×RJ45 Port with LED Indicator, Supports Windows and Linux Systems
Limited time offer, ends 05/29
- Model #: IO-M2F113-GLAN
- $155.99 –
- More options from $153.99 - $155.99
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Vszerda Single Port SFP giga-bit Ethernet Network Card,with I210 Chip PCIe X1 Adapter LAN INC Card Controller Support Windows Server/Linux/VMware
Limited time offer, ends 05/22
- Model #: YG94HJ98
- $69.89 –
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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
- $183.99
- $162.99 –
- Save: 11%
- More options from $162.99 - $169.61
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OWC 10G ETHERNET PCIE NETWORK CARD
- Brand: Other World Computing
- Model #: OWCPCIE10GB
- $115.00 –
- More options from $105.81 - $117.21
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C&N Dual PCIe 3.1 2.5GBase-T Network Adapter with Intel I226-V 2500/1000/100Mbps PCI Express Gigabit Ethernet NIC Card RJ45 LAN Controller for Windows 10/11 with Low Profile Bracket
- Brand: C&N
- Part Number: ST7207-2*RJ45
- Speed: 2500 megabits_per_second
- Features: PC
- Model #: ST7207-2*RJ45
- $59.99 –
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Dual 2.5 Gigabit mini PCIe Ethernet Network Expansion Card
- Model #: SI-MPE24079
- $46.48 –
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- Brand: NVIDIA
- Part Number: 900-9D3B6-00SV-AA0
- Connectors: 2-Ports QSFP112
- Features: Series / Cores: P-Series / 16 Arm-cores Data Transmission Rate: InfiniBand: NDR200 200Gb/s, Ethernet: 200GbE (Default) PCIe Support: PCIe Gen 5.0 x16 x16 PCIe Extension Option External Power Connector On-Board DDR5 Memory: 32GB Integrated BMC Crypto Disabled
- Model #: 900-9D3B6-00SV-AA0
- $5,512.00
- $3,448.99 –
- Save: 37%
- More options from $3,414.17 - $3,448.99
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JAENFONG PCI Network Card adapter 10/100Mbps with Realteck RT8139D Megabit Ethernet Network Converter Controller
Limited time offer, ends 05/20
- Model #: ZZ-827
- $19.52 –
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10Gb PCI-E NIC Network Card, Dual Copper RJ45 Port, with Intel X550-AT2 Controller, PCI Express Ethernet LAN Adapter Support Windows Server/Linux/ESX, Compare to Intel X550-T2
- Brand: HP
- Part Number: X550-T2(Intel-1pc)-AU
- Features: x1, 10 gigabytes_per_second, pci_x_4, Server, Desktop
- Dimensions: 14.33in W x 12.83in H x 9.06in D
- Model #: 734631573522
- $149.99 –
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PCIE X8 Interface to 2X 10GbE SFP+ Fiber Port Converged Ethernet Adapter, Intel 82599ES 10 Gigabit Ethernet Controller, 2-Port 10GbE PCIE NIC Card, 2X 10GbE SFP+ LAN Adapter (X520-DA2)
- Brand: HP
- Part Number: X520-DA2
- Features: 10 gigabits_per_second, Desktop
- Dimensions: 14.33in W x 12.83in H x 9.06in D
- Model #: 265360739196
- $109.99 –
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LR-LINK 2014PT-POE PCIe x4 Dual-port 10G POE+ Ethernet Frame Grabber (Intel X550 Chip Based)
- Standards: IEEE802.3
- Connectors: 2 x RJ45
- Temperature: 0°C ~ 55°C
- Humidity: 0 % ~ 90 % (Non-condensing)
- Model #: LRES2014PT-POE
- $400.00 –
- $30.00 Shipping
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10Gtek For Intel X710DA2 Ethernet Converged Network Adapter with Intel X710-BM2 Chip,10Gb Network Card,PCIe 3.0, x8 Dual Ports, Ethernet LAN Adapter Support Windows Server/Windows/Linux/ESX
- Connectors: 2 x SFP+
- Features: Intel X710-DA2
- Model #: 20221212002
- $164.99 –
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TRENDnet TEG-25GECTX PCIe 2.0 x1 2.5GBASE-T PCIe Network Adapter
- Brand: TRENDnet
- Standards: IEEE 802.3u IEEE 802.3ab IEEE 802.3bz 2.5GBASE-T IEEE 802.1Q
- Connectors: 1 x RJ-45 Ethernet port
- Interface: PCIe 2.0 x1
- Model #: TEG-25GECTX
- $31.27 –
- More options from $31.27 - $49.14
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1 Port DB25 Parallel Printer (LPT1) PCI-e 2.0 x1 Expansion Card - SI-PEX10011
Limited time offer, ends 05/10
- Model #: C10V-M315053
- $29.99
- $28.99 –
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- Standards: F169G
- Connectors: 2 x RJ45
- LEDs: Link, Activity
- Drivers: Microsoft® Windows® (32-bit and 64-bit extended), Linux® (32-bit and 64-bit extended), VMware, MS-DOS, Oracle Solaris
- Model #: F169G PCI-E
- $29.99 –
- More options from $29.99 - $52.17
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- $150.63 –
- More options from $150.63 - $338.70
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Intel EXPI9402PTBLK-1PK 10/100/1000Mbps PCI-Express PRO/1000 PF Dual Port Server Adapter
- Connectors: 2 x RJ45
- BUS: PCI Express x16
- Dimensions: 0.85" Height x 5.10" Width
- Parts: Lifetime limited
- Model #: EXPI9402PTBLK-1PK
- $47.49 –
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- Model #: 226-040438000333053
- $129.99 –
- More options from $129.99 - $307.82
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Intel E1G44ET 10/100/1000Mbps PCI-Express Gigabit Ethernet Quad Port Server Adapter
- Connectors: 4 x RJ45
- Wake On LAN: Yes
- Parts: Lifetime limited
- Labor: Lifetime limited
- Model #: E1G44ET
- $91.19 –
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- Package Contents: Intel X710-DA2 2x10GbE SFP+ Adapter Full-height (3U) bracket attached with low-profile (2U) bracket included in the box Quick Install Guide Warranty Flyer Documentation CD Important Notices Flyer
- Parts: 1 Year
- Model #: 01DA900
- $99.00 –
- More options from $99.00 - $743.85
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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)
- Brand: GLOTRENDS
- Standards: Ethernet
- Speed: 10 gigabits_per_second
- Connectors: Ethernet
- Model #: ST7315-82599EN
- $32.99 –
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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
- $56.99 –
- More options from $56.99 - $66.37
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QNAP QXG-10G2T-X710, Two 10GbE Ports with SR-IOV and iSCSI, Block-based, Supports Multiple Virtual Disk Modes
- Brand: QNAP
- Part Number: QXG-10G2T-X710
- Standards: IEEE 802.1Q IEEE 802.3x IEEE 802.1p IEEE 802.3ad IEEE 802.3ae IEEE 1588 IEEE 802.1as
- Features: Controller: Intel Ethernet Controller X710 Number of Ports: 2 x NBASE-T (RJ45) Connector: NBASE-T (RJ45) PCIe and Lanes: PCIe 3.0 x4 Transmission Rates: 10Gbps/5Gbps/2.5Gbps/1Gbps/ 100Mbps Bracket: Low-profile bracket pre-installed; full-height and specialized (for selected QNAP NAS) brackets are bundled SR-IOV Support NVGRE, VXLAN, Geneve Support 1K ingress and egress QoS levels: On-chip QoS How mant virtual functions: 128 (64/port) Supported NAS operating systems QTS 4.4.3 or later (recommend an upgrade to the latest version); Windows 10 (1809 or later); Linux Stable Kernel 4.20/5.x; Windows Server 2019 (Driver required) Supported QNAP NAS: Models with PCIe slot(s) (1 free slo...
- Model #: RNAB095XMV6Z8
- $351.99 –
- More options from $351.99 - $456.00
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- $255.55 –
- More options from $244.99 - $275.51
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- Parts: 30 DAYS WARRANTY
- Labor: 30 DAYS WARRANTY
- Model #: 735858256391
- $38.39 –
- More options from $38.39 - $68.99
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LSI SAS 9300-8e 8-Port External 12Gb/s HBA Card IT Mode, StorageTekPro Flashed for ZFS FreeNAS unRAID
- Model #: 69089112144
- $199.00 –
- More options from $199.00 - $298.00
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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