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Dual Port SAS Adapter Card 2X Internal SFF-8087 to 2X External SFF-8088 Slot, 6Gb/s, Card with Full-Height and Low-Profile
- Model #: 69089112120
- $79.00 –
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SAS9207-8e 8-Port PCIe LSI IT Mode 9207-8e SAS 6Gb/s External HBA RAID Card
- Model #: 69089112145
- $59.00 –
- More options from $59.00 - $198.99
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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 #: 690432643511
- $26.00 –
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EM7565 Card, EM7565 1104207 4G Module for Laptops with NGFF M2 Interface, 4G Router, PCI Express M.2 Cat 12 High Speed 4G LTE Network Card, 24 LTE Bands
- Model #: 374307768162
- $97.99 –
- $5.00 Shipping
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CyberPower RMCARD400 UPS Network Management Card
- Model #: RMCARD400
- $409.95 –
- More options from $409.95 - $908.87
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- Model #: E810XXVDA4OCPV3
- $599.00
- $595.00 –
- More options from $595.00 - $1,511.81
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PNY NVIDIA Quadro P600 2GB GDDR5 4Mini DisplayPorts PCI-Express Video Card
- Model #: MLPNY-P600
- $99.00 –
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- Parts: 30 days warranty
- Labor: 30 days warranty
- Model #: Intel-E1G44ET2
- $157.99 –
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IBM NetXtreme II 1000 Express Dual Port Ethernet Adapter
- Connectors: 2 x RJ45
- Parts: 1 Year Limited
- Model #: 42C1780
- $35.00 –
- More options from $35.00 - $111.00
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2.5Gbps PCIe Network Card Dual RJ45 Port Adapter with Intel I226 Chipset 2500/1000/100Mbps PCI Express Gigabit Ethernet NIC Card RJ45 LAN Port Controller for Desktop Gaming Office eokCXOY
Limited time offer, ends 05/05
- Model #: C2AG-1112-3
- $71.68 –
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StarTech 1-Port Gigabit PCIe Network Adapter Card, Low-Profile NIC ST1000SPEX2LT
- Brand: StarTech
- Model #:
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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
- $64.99 –
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- Brand: Dell
- Part Number: 942V6
- Speed: 10Gbps
- Connectors: 2 x SFP+
- Model #: 0X520-DA2,X520DA2
- $64.99 –
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StarTech.com 10G Network Card - 2 port - NBASE-T - RJ45 Port - Intel X550 chipset - Ethernet Card - Intel NIC Card
- Standards: IEEE 802.3an (10GBASE-T), IEEE 802.3ab (1GBASE-T), IEEE 802.3u (100BASE-T), IEEE 802.3az (EEE - Energy Efficient Ethernet)
- Connectors: 2 x RJ45
- LEDs: 2 - Link Speed 2 - Link Activity
- Dimensions: 4.70" x 0.80" x 6.40"
- Model #: ST20000SPEXI
- $405.89
- $397.47 –
- More options from $25.78 - $408.00
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- Brand: Intel
- Part Number: E810XXVDA2BLK
- Speed: 25/10/1GbE per port
- Connectors: 2 x SFP28
- Model #: E810XXVDA2BLK
- $499.00
- $290.42 –
- Save: 41%
- More options from $237.99 - $1,443.38
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StarTech.com 4-Port 2.5Gbps NBASE-T PCIe Network Card, Intel I225-V Chip, Quad Port Computer Network Card, Multi-Gigabit
- Color: Gray
- Dimensions: 5.920 x 8.520 x 1.480
- Weight: 0.4400
- Model #: PR42GI-NETWORK-CARD
- $227.54
- $217.29 –
- More options from $217.29 - $235.33
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Intel E1G44HTBLK 10/100/1000Mbps PCI-Express 2.0 Server Adapter I340-T4 (Bulk Pack)
- Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab
- Connectors: 4 x RJ45
- Temperature: 0°C ~ 55°C
- Weight: 1
- Model #: E1G44HTBLK
- $155.00
- $97.99 –
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- $51.99 –
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Mellanox MCX414A-GCAT ConnectX-4 EN Network Interface Card 50GbE Dual-Port QSFP28 PCIe3.0 x8 ROHS R6
- Model #: MCX414A-GCAT
- $361.00 –
- More options from $361.00 - $561.00
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LSI Broadcom SAS 9300-8i 8-port 12Gb/s SATA+SAS PCI-Express 3.0 Low Profile Host Bus Adapter
- Model #: 69089112132
- $88.00 –
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Perle eR-S1110 Ethernet Repeater 06005324
- Brand: Perle Systems
- Model #: 06005324
- $282.00 –
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StarTech.com USB 2.0 to 10/100 Mbps Ethernet Network Adapter Dongle
- Weight: 0.3
- Package Contents: USB 2.0 to 10/100 Mbps Ethernet Network Adapter Dongle 1 x Driver CD 1 x Instruction Manual
- Parts: 2 Year
- Labor: 2 Year
- Model #: USB2100
- $29.99 –
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StarTech.com USB 3.0 to Gigabit Ethernet NIC Network Adapter - 10/100/1000 Mbps
- Standards: IEEE802.3i, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3az
- Connectors: 1 x RJ-45 Female 1 x USB Type-A (9 pin) USB 3.0 Male
- LEDs: 1 x Activity (Yellow) 1 x Link (Green)
- Temperature: Operating Temperature: 0 ~ 50 degree Celsius (32 ~ 122 degree Fahrenheit) Storage Temperature: 0 ~ 70 degree Celsius (32 ~ 158 degree Fahrenheit)
- Model #: USB31000NDS
- $35.86
- $35.00 –
- More options from $20.99 - $41.86
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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 –
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- Brand: Intel
- Part Number: E610XT4
- Model #: E610XT4
- $577.83 –
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StarTech.com USB 3.0 to Gigabit Network Adapter - Silver - Sleek Aluminum Design Ideal for MacBook, Chromebook or Tablet
- Weight: 0.01
- Package Contents: USB 3.0 to Gigabit Network Adapter - Silver 1 x Quick Install Guide
- Parts: 2 Year
- Model #: USB31000SA
- $40.99
- $38.00 –
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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 05/05
- Model #: C2AG-1217-5
- $47.69 –
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StarTech.com USB 3.0 to Gigabit Network Adapter with Built-In 2-Port USB Hub - Native Driver Support (Windows, Mac and Chrome OS)
- Standards: IEEE 802.3 10BASE-T, IEEE 802.3ab 1000BASE-T, IEEE 802.3u 100BASE-TX and IEEE 802.3X Full Duplex
- Connectors: 1 - USB 3.0 A (9 pin; SuperSpeed) Male 1 - RJ-45 Female 2 - USB 3.0 A (9 pin; SuperSpeed) Female
- Temperature: Operating Temperature:0 degree C to 70 degree C (32 degree F to 158 degree F) Storage Temperature: -10 degree C to 55 degree C (14 degree F to 131 degree F)
- Humidity: 40% ~ 50%
- Model #: USB31000S2H
- $52.99
- $46.99 –
- Save: 11%
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- Brand: Intel
- Part Number: ?E810XXVDA4
- Standards: Ethernet
- Connectors: Ethernet
- Model #: E810XXVDA4
- $583.65
- $395.99 –
- Save: 32%
- More options from $395.99 - $1,375.13
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StarTech 1-Port Gigabit PCIe Network Adapter Card ST1000SPEX2T
- Brand: StarTech
- Model #:
- $35.07 –
- More options from $34.93 - $39.00
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10Gtek 10G Network Card Compare to Intel X520-DA2(Intel E10G42BTDA), Dual SFP+ Port, with Intel 82599EN Controller, PCIe x8 Ethernet Adapter Support Windows Server/Linux/VMware, with 2pcs SFP+ DAC 1 m
- Standards: IEEE802.3,IEEE802.3u,IEEE802.3ab
- Connectors: 2 x SFP+
- Temperature: 0°C ~ 55°C
- Features: Intel X520
- Model #: X520-10G-2S-X8+CAB-10GSFP-P1M (x2)-CSC-X
- $85.99 –
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Solarflare SFN5122F Dual-Port 10 GbE SFP+ Enterprise Server Adapter
- Standards: IEEE 802.3ae IEEE 802.3ad IEEE 802.1Q IEEE 802.1p IEEE 802.3x
- Connectors: 2 x SFP+
- Dimensions: L: 16.74 cm (6.59 in) W: 6.89 cm (2.71 in)
- Weight: 0.45 lb.
- Model #: SFN5122F
- $69.99 –
- More options from $69.99 - $139.98
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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