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- Brand: NVIDIA
- Part Number: 900-9D3B6-00CV-AA0
- Interface: PCI Express 5.0 x16
- Features: Data transmission rate: 2-Ports QSFP112 PCIe Support: PCIe Gen 5.0 x16
- Model #: 900-9D3B6-00CV-AA0
- $4,718.10 –
- More options from $3,834.99 - $4,718.90
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C&N 10G RJ45 Ethernet Network Card with Intel X550 Controller, PCIE 3.0 X4 Interface, Support Windows 11/10/Windows Server/Linux/ESX/VMware ESXi(Not Support Mac OS)
- Brand: C&N
- Standards: Ethernet
- Speed: 10 gigabits_per_second
- Connectors: Ethernet
- Model #: ST7381-X550
- $99.00 –
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C&N Dual-Port PCIe X4 Gigabit Network Card with Intel 82576 Ethernet Adapter - PXE and SR-IOV Support for Linux and Windows Server Compatibility
- Speed: 1000 megabytes_per_second
- Wake On LAN: Yes
- Features: Desktop
- Dimensions: 113.0 in x 69.0 in x 18.0 in
- Model #: JL82576EB
- $39.99 –
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C&N 10Gb Open SFP+ PCI-e Network Card, with Intel 82599(X520-DA1) Controller, 10Gbps Ethernet Adapter, 10Gbe 10G NIC Card, Support Windows/Windows Server/VMware/Remote Wake-Up/PXE/UEFI
- Part Number: TXA309
- Standards: Fast Ethernet
- Connectors: Fast Ethernet
- Features: Desktop
- Model #: TXA309
- $39.19 –
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2.5Gb PCI-E NIC Network Card for Realtek8125B,100MbE/1GbE/2.5GbE Copper Single RJ45 Port,with Realtek RTL8125BG Chip,2.5GbE PCI Express 2.0 X1 Ethernet Adapter Support Windows/Linux/MAC
Limited time offer, ends 09/29
- Brand: HP
- Part Number: VG-RLT8125B
- Connectors: 1 x RJ45
- Features: 8.8 x 5.9 x 1.1 inches, 2.5 gigabytes_per_second, ethernet, Desktop, 1-Year Free Warranty
- Model #: 631791265238
- $38.99 –
- Free Shipping
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4 Ports PCIE Firewire 400 1394A Expansion Card, Texas Instruments TI TSB43AB23, Plug and Play on Windows and MAC Desktop PCs, 3X 6Pin and 1X 4Pin 1394A Ports, 400Mbps Max Speed (FS-FW400)
- Brand: HP
- Part Number: FS-FW400
- Connectors: 1 x RJ45
- Features: Classic
- Model #: 981055121080
- $58.99 –
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WiFi 6E AX5400 PCIe WiFi Card for Desktop PC (Intel AX210) Bluetooth 5.3, WPA3, 802.11AXE Tri Band Wireless Adapter with MU-MIMO, OFDMA, Ultra-Low Latency, Supports Windows 11, 10 (64bit)
- Brand: OKN
- Part Number: PCE-AX200
- Speed: 5400 megabits_per_second
- Dimensions: 12.0 in x 8.0 in x 2.0 in
- Model #: 533138135297
- $52.21 –
- More options from $52.21 - $53.99
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PCIe X4 giga-bit Dual-Port Server Network Card,with I350-T2 RJ45 Adapter LAN NIC Card for Support Windows/Windows Server/Linux/Freebsd/VMware
- Model #: 6908955119
- $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
- $81.79 –
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- Connectors: RJ-45 x2
- Parts: Limited Lifetime
- Labor: Limited Lifetime
- Model #: GX540-T2
- $77.99 –
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PCIE-1394A 4-Ports 1394A PCIE FireWire 400 Expansion Card for Windows Desktop PCs, 3X 6Pin and 1X 4Pin 1394A 400Mbps Ports, with 4Pin-6Pin 1394A Cables and Low Profile Bracket
- Brand: HP
- Part Number: PCIE-1394A
- Connectors: 1 x RJ45
- Interface: PCI
- Model #: 076359114873
- $50.00 –
- Free Shipping
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- Part Number: NV5DW
- Model #: NV5DW
- $29.99 –
- Free Shipping
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Intel EXPI9404PT 10/100/1000Mbps PCI-Express PRO/1000 PT Quad Port Server Adapter
- Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab
- Connectors: 4 x RJ45
- LEDs: 4 (1/port, link and speed) solid and blinking
- Wake On LAN: Yes
- Model #: EXPI9404PT
- $87.30 –
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X540-T2 10G Dual RJ45 Port PCI-E Ethernet Network Adapter For Chipset X540
- Brand: Intel
- Model: X540-T2
- Part Number: X540-T2
- Standards: IEEE 802.3 – Original Ethernet standard (10 Mbps) IEEE 802.3u – Fast Ethernet (100 Mbps) IEEE 802.3ab – Gigabit Ethernet over copper (1000BASE-T) IEEE 802.3an – 10 Gigabit Ethernet over copper (10GBASE-T) IEEE 802.3x – Flow control (full-duplex) IEEE 802.3ad – Link aggregation / LACP (teaming multiple ports) IEEE 802.1Q – VLAN tagging IEEE 802.1p – Quality
- Model #: ZZL-RNU-ASD1463386
- $81.99 –
- More options from $81.99 - $83.98
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- Model #: E810CQDA2TGG1
- $1,299.20 –
- More options from $1,299.20
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Mellanox MCX4111A-ACAT ConnectX-4 EN 25Gbe PCIe 3.0 1-Port SFP28 Adapter Card
- Part Number: MCX4111A-ACAT
- Parts: 30 Days
- Labor: 30 Days
- Model #: MCX4111A-ACAT-REF
- $56.00 –
- More options from $56.00 - $89.00
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PCI Express Network Card 10/100/1000Mb 2 Ports RJ45 Network Adapter PCIe PCI-E Gigabit Etherent Network Adapter Lan Card BCM5718
- Model #: ZX-230
- $29.75 –
- Free Shipping
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- Model #: 0DD3F6
- $21.95 –
- Free Shipping
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2.5G Gigabit network card PCIE to Gigabit wired network port 2.5G network game network card 2500M network adapter
- Model #: ZX-233
- $18.75 –
- Free Shipping
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2.5G Gigabit network card PCIE to Gigabit wired network port 2.5G network game network card 2500M network adapter
Limited time offer, ends 09/26
- Model #: A9Y1-H0507-75
- $18.99 –
- Free Shipping
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Weastlinks PCI Express Network Card RTL8125GB Gigabit Ethernet PCIE Network card 2.5Gbps LAN Adapter 1Port RJ45 Network Card for Desktop PC
- Connectors: 1 x RJ45 Network
- Wake On LAN: Yes
- Class: 2.5G, Single RJ45
- Model #: WLNTWC370
- $30.49 –
- More options from $17.40 - $30.99
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5.0GB PCIe Network Card PCIe to 5.0 Gigabit Ethernet Network Card, Supports Windows 11/10/8.1/8/7, Win Server 2022/2019/2016, Linux
Limited time offer, ends 10/15
- Model #: C2AG-1215-W32
- $29.99 –
- More options from $29.98 - $45.99
- Free Shipping
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5.0GB PCIe Network Card PCIe to 5.0 Gigabit Ethernet Network Card, Supports Windows 11/10/8.1/8/7, Win Server 2022/2019/2016, Linux
Limited time offer, ends 09/27
- Model #: C2AG-1219-C11
- $30.49 –
- More options from $30.49 - $45.99
- Free Shipping
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USB 3.0 Ethernet Adapter 3 Port USB 3.0 HUB 10/100/1000 Mbps PCI-E to RJ45 Gigabit Network LAN Adapter Usb Ethernet Network Card
Limited time offer, ends 09/27
- Model #: WM-LW001-A1-2383
- $26.78 –
- More options from $26.78 - $28.99
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Mellanox Connectx-3 Pro - Network Adapter - PCI Express 3.0 X8-10 Gigabit Ethernet (MCX312B-XCCT)
- Model #: C12Y-ZY1038
- $96.90 –
- Free Shipping
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Alta Labs Control On-Premise Network Controller - Compatible with All Alta Labs WiFi Access Points, Manage Up to 1,000 Devices, PoE+, Advanced Filtering, Hotspot, Secure Enterprise Network Manage
- Part Number: Control
- WiFi Generation: no
- Bluetooth: yes
- Dimensions: 7.1" x 3.6" x 1"
- Model #: Control
- $149.00 –
- Free Shipping
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10Gb PCI-E NIC Network Card, with Broadcom BCM57810S Chipset, Dual SFP+ Port, PCI Express Ethernet LAN Adapter Support Windows Server/Windows/Linux/VMware
- Model #: C12Y-ZY1107
- $78.00 –
- 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