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- Connectors: 2 x LC
- Parts: 30 days warranty
- Labor: 30 days warranty
- Model #: E10G42BFSR
- $68.00
- $44.99 –
- Save: 33%
- Free Shipping
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- Model #: AX211.NGWG.NV-a
- $24.99 –
- Free Shipping
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- Part Number: X520-DA2
- Standards: IEEE 802.3ae – 10 Gigabit Ethernet over fiber IEEE 802.3x – Flow Control IEEE 802.1Q – VLAN tagging IEEE 802.1p – Priority tagging IEEE 802.1qaz – Data Center Bridging (DCB) enhancements IEEE 802.1Qbb – Priority-based Flow Control (PFC) IEEE 802.3ap – Backplane Ethernet RoHS Compliant – Restriction of Hazardous Substances PCI-SIG – PCI Express 2.0 Compliance Low Halogen –
- Connectors: Port Type: SFP+ (Small Form-factor Pluggable Plus) – Accepts hot-swappable SFP+ transceivers Number of Ports: 2 x 10GbE SFP+ Ports Compatible Transceivers / Cables: SFP+ Direct Attach Copper (DAC) cables SFP+ SR (Short Range) Optical Modules SFP+ LR (Long Range) Optical Modules Connector Interface: Standard SFP+ cages for fiber or copper No RJ45 (not compatible with standard Ethernet cables) PCIe Interface: PCI Express...
- Model #: X520-DA2/H/P
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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 –
- Free Shipping
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PCIe Gigabit Ethernet Server Adapter with Broadcom NetXtreme BCM5751 10/100/1000Mbps Gigabit Desktop PCI-E Network Card NIC
- Brand: ULANSeN
- Part Number: Broadcom 5751
- Speed: 1000 megabits_per_second
- Features: Desktop
- Model #: 021492685685
- $43.85 –
- More options from $39.99 - $44.09
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Qnap 5 Gbe Network Expansion Card
- Weight: 1
- Model #: QXG5G1T111C
- $215.00 –
- More options from $113.10 - $215.00
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WiFi 6E GC-WBAX210 (2x2 802.11ax/ Tri-Band WiFi/Bluetooth 5.2/ PCIe Expansion Card)
- Brand: HP
- Part Number: GC-WBAX210
- Connectors: 1 x RJ45
- WiFi Generation: Wi-Fi 6
- Model #: 964861646778
- $88.19 –
- More options from $78.99 - $88.19
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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 –
- Free Shipping
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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
- $54.21 –
- More options from $49.99 - $54.49
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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 –
- More options from $39.19
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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 –
- Free Shipping
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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 –
- Free Shipping
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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 08/15
- 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
- $39.59 –
- More options from $25.99 - $39.59
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- Model #: MCX713106AS-CEAT
- $2,591.10 –
- More options from $1,589.00 - $2,999.00
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Dual-Port Server Network Card with I226-V Chip PCI-E X1 2.5G giga-bit Ethernet Card RJ45 LAN Network Adapter Support Windows/10/11/Windows server/2022
- Model #: 6908955099
- $68.00 –
- Free Shipping
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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 –
- Free Shipping
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- Part Number: NV5DW
- Model #: NV5DW
- $29.99 –
- Free Shipping
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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 $54.20 - $56.00
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- Brand: Dell
- Part Number: 942V6
- Speed: 10Gbps
- Connectors: 2 x SFP+
- Model #: 0X520-DA2,X520DA2
- $59.99 –
- Free Shipping
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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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2.5G Gigabit network card PCIE to Gigabit wired network port 2.5G network game network card 2500M network adapter
Limited time offer, ends 08/16
- Model #: A9Y1-H0507-75
- $17.99 –
- 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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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
- 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 08/30
- Model #: C2AG-1215-W32
- $29.99 –
- More options from $29.98 - $45.99
- 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:
Mc
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)