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- Parts: 30 DAYS WARRANTY
- Labor: 30 DAYS WARRANTY
- Model #: SNXI350T4V2
- $88.90 –
- More options from $88.90 - $197.45
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Intel E1G44HT 10/100/1000Mbps PCI-Express 2.0 Server Adapter I340-T4
- Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab
- Connectors: 4 x RJ45
- Temperature: 0°C ~ 55°C
- Weight: 0.45
- Model #: E1G44HT
- $106.00
- $79.50 –
- Save: 25%
- More options from $79.50 - $94.14
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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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- $114.00 –
- More options from $114.00 - $175.00
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Intel EXPI9404PTL 10/100/1000Mbps PCI-Express PT Quad Port Low Profile Server Adapter
- Standards: IEEE 802.1Q VLANs IEEE 802.3ad IEEE 802.3ab IEEE 802.3u IEEE 802.3x IEEE 802.1p IEEE 802.3z
- Connectors: 4 x RJ45
- BUS: PCI Express 1.0a
- LEDs: 4 (1/port, link and speed) solid and blinking
- Model #: EXPI9404PTL
- $67.99 –
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- Brand: Intel
- Part Number: E610XT4
- Model #: E610XT4
- $574.10 –
- More options from $574.10 - $602.43
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- Connectors: 4 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 #: X710T4L
- $608.75 –
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- Weight: 0.1200
- Model #: I350T4V2BLK
- $121.24 –
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- Package Contents: Ethernet Converged Network Adapter X540-T1 Information CD Low-Profile Bracket
- Parts: Manufacturers Limited Warranty: Lifetime / Parts Only
- Model #: X710DA2BLK
- $144.00
- $141.89 –
- More options from $141.89 - $410.80
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HGST HUC109090CSS600 Hard Drive 900GB SAS 6Gb/S 10KRPM 2.5in - Ultrastar C10K900 Series
- Model #: WDN-HGST-HUC109090CSS600
- $59.99 –
- More options from $59.99 - $68.00
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D-Link DGE-528T 10/ 100/ 1000Mbps PCI Copper Gigabit PCI Card for PC
- Model #: DGE-528T
- $26.00 –
- More options from $24.00 - $26.90
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Mellanox ConnectX-4 MCX4121A-XCAT 10Gigabit Ethernet Card
- Model #: MCX4121A-XCAT
- $82.00
- $81.70 –
- More options from $81.70 - $584.00
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RIITOP 5Gb PCIe Network Card, PCIe Ethernet Card with Extra Low-Profile, PCI Express Network Adapter for PC Windows 11/10 & Windows Server 2022 ONLY, PCIe to 5 Gigabit NIC Card
Limited time offer, ends 09/25
- Class: 5G, Sing RJ45
- Model #: PCE1XT5GB
- $27.99 –
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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
- $755.99 –
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LSI 9300-8i RAID Controller Card PCI E 3.0 12Gbps HBA IT Mode ZFS FreeNAS unRAID + 2 SFF-8643 SATA Cable RAID Expander
- Model #: 69089112114
- $98.00 –
- More options from $98.00 - $197.99
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- Brand: Intel
- Part Number: X710T2LOCPV3
- Speed: 10 Gbit/s Data Transfer Rate
- Model #: X710T2LOCPV3
- $289.99
- $287.99 –
- More options from $287.99 - $343.06
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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
- $34.10 –
- More options from $34.10 - $47.26
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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 - $46.92
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- $147.70 –
- More options from $147.70 - $284.74
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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
- $176.99 –
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9240-8i 6Gbps SAS HBA FW:P20 9211-8i IT Mode ZFS FreeNAS unRAID 2* SFF-8087 SAS SATA Host Bus Adapter Controller Card
- Model #: 69089112155
- $59.00 –
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StarTech US1GC30B USB-C to Gigabit Ethernet Adapter - Black - Thunderbolt 3 Port Compatible - USB Type C Network Adapter
- Standards: IEEE 802.3, 802.3u and 802.3ab
- Connectors: Connector Type (s): 1 - USB Type-C (24 pin) USB 3.0 Male External Ports: 1 - RJ-45 Female
- Temperature: Operating Temperature: 0 ~ 70 degree Celsius (32 ~ 158 degree Fahrenheit) Storage Temperature: -10 ~ 80 degree Celsius (14 ~ 176 degree Fahrenheit)
- Humidity: 5% ~ 90% RH
- Model #: US1GC30B
- $39.99
- $36.99 –
- Save: 7%
- More options from $36.99 - $44.02
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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
- $45.99 –
- Save: 8%
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- Standards: 802.1p 802.3 802.1Q 802.3ad
- Connectors: 1 x RJ45
- Weight: 1
- Parts: 30 DAYS WARRANTY
- Model #: X540T1BLK
- $64.69 –
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- Parts: 30 days warranty
- Labor: 30 days warranty
- Model #: Intel-E1G44ET2
- $150.79
- $150.71 –
- More options from $150.71 - $152.80
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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
- $399.99 –
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SAS3008 AOC-S3008L-L8E 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 10/07
- Model #: 69089112152
- $79.42 –
- More options from $79.42 - $88.99
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- Brand: NVIDIA
- Part Number: 900-9X81Q-00CN-ST0
- Speed: InfiniBand: NDR IB Ethernet: 400GbE (Default)
- Connectors: Port Type: Dual-port QSFP112
- Model #: 900-9X81Q-00CN-ST0
- $2,298.08 –
- More options from $2,275.99 - $2,298.08
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- Brand: NVIDIA
- Speed: 100Gbps
- Connectors: 2 x QSFP56
- Interface: PCIe 4.0 x16
- Model #: MCX623106AN-CDAT
- $1,325.00 –
- More options from $1,082.65 - $1,475.00
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- Brand: Dell
- Part Number: 942V6
- Speed: 10Gbps
- Connectors: 2 x SFP+
- Model #: 0X520-DA2,X520DA2
- $59.99 –
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Gigabit 2 Port NIC with Intel I350 Chip, 1Gb Network Card Compare to Intel I350-T2 NIC, Dual RJ45 Ports, PCI Express 2.1 X4, Ethernet Card with Low Profile for Windows/Windows Server/Linux
Limited time offer, ends 09/27
- Model #: C2AG-1217-5
- $45.69 –
- More options from $45.69 - $68.99
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Gigabit PCIe NIC with Intel I210 Chip, 1Gb Network Card Compare to Intel I210-T1 NIC, Single RJ45 Port, PCI Express 2.1 X1, Ethernet Card with Low Profile for Windows/Windows Server/Linux
Limited time offer, ends 09/27
- Model #: C2AG-1226-C77
- $34.29 –
- More options from $34.29 - $36.89
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MELLANOX MCX516A-CDAT CONNECTX-5 100GBE CX516A DUAL PORT QSFP28
- Model #: BE5C1Z3D96
- $599.00 –
- Free Shipping
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