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Intel Dual SFP28 Ports 25/10/1GbE Ethernet Network Adapter E810-XXVDA2
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QNAP QXG-25G2SF-E810 25Gigabit Ethernet Card QXG25G2SFE810
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Intel Ethernet Network Adapter E810-CQDA2 E810CQDA2BLK
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Allied Telesis AT-2916SX/LC-901 1000Mbps PCI PCI Gigabit Fiber Interface Card
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Allied Telesis AT-2916SX/LC-901 1000Mbps PCI PCI Gigabit Fiber Interface Card
  • Standards: IEEE 802.1p IEEE 802.1Q IEEE 802.2 IEEE 802.3ab IEEE 802.3ac IEEE 802.3ad IEEE 802.3az IEEE 802.3x IEEE 802.3z
  • Connectors: 2 x LC
  • Temperature: Operating temperature: 0°C to 50°C Storage temperature: -25°C to 70°C
  • Humidity: 5% to 90% non-condensing
  • Model #: AT-2916SX/LC-901
  •  
  • $139.00 
  • $15.00 Shipping
Micron MTA72ASS16G72LZ-3G2F1 Memory 128GB DDR4 3200MHz LRDIMM MEM-DR412L-CL03-LR32
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  • $484.99 
  • Free Shipping
Interface Board P1078305-01 For Zebra ZT510 ZT610 ZT620 Barcode Label Printer
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  •  
  • $228.88 
  • Free Shipping
AddOn 10/100/1000Mbs Single Open RJ-45 Port 100m PCIe x4 Network Interface Card
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AddOn 10/100/1000Mbs Single Open RJ-45 Port 100m PCIe x4 Network Interface Card
  • Standards: IEEE 802.3
  • Connectors: RJ-45
  • Dimensions: 5.2 in. x 0.9 in. x 4.7 in.
  • Model #: ADD-PCIE-1RJ45
Allied Telesis AT-2701FTX/SC-901 10/100Mbps PCI Fiber Interface Card
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Allied Telesis AT-2701FTX/SC-901 10/100Mbps PCI Fiber Interface Card
  • Connectors: 1 x RJ-45 10/100Base-TX 1 x SC 100Base-FX
  • BUS: 32-bit PCI 2.2
  • Wake On LAN: Yes
  • Dimensions: 2.6" x 6.9"
  • Model #: AT-2701FTX/SC-901
  •  
  • $129.00 
  • $15.00 Shipping
HP X550-T2 10GbE Dual Port NIC - 2 Port(s) - Twisted Pair
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ADDON EXPI9301CT-AO INTEL EXPI9301CT COMP NIC
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ADDON EXPI9301CT-AO INTEL EXPI9301CT COMP NIC
  • Connectors: 10/100/1000Base-T
  • Weight: 0.38
  • Model #: 11776097
Intel PRO/1000 PF Quad Port Bypass Server Adapter
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Intel
Intel PRO/1000 PF Quad Port Bypass Server Adapter
  • Connectors: 4 x LC Network
  • Package Contents: PRO/1000 PF Quad Port Bypass Server Adapter Informational CD
  • Parts: Lifetime Limited
  • Labor: 30 DAYS WARRANTY
  • Model #: EXPI9024PFBLK
Jabra PanaCast 50 USB Cable 1420211
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GLOTRENDS ST7387 4-Port Gigabit PCIe Ethernet Network Card, 4 x RTL8111H Chip, 4 x RJ45 LAN Port, PCIe X1 Installation
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  • $45.00 
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  • $40.00 - $45.00
QLogic QLE8152-CU-CK 10Gbps PCI-Express 10Gb Dual port FCoE CAN, x8 PCIe
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QLogic QLE8152-CU-CK 10Gbps PCI-Express 10Gb Dual port FCoE CAN, x8 PCIe
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: QLE8152-CU-CK
BlackBox Network Services IC1023A 8port Usb Hub Rs232 Perp
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Belkin USB-C to Gigabit Ethernet Adapter (USB Type-C)
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Belkin USB-C to Gigabit Ethernet Adapter (USB Type-C)
  • Connectors: 1 x RJ45
  • Package Contents: USB-C to Gigabit Ethernet Adapter
  • Model #: B2B145-BLK
USB C to Ethernet Adapter, Driver Free Gigabit RJ45 to USB C [Thunderbolt 3/4 Compatible] Ethernet LAN Network Adapter, Compatible with Mac-Book Pro 2020/2019/2018, i-Pad Pro, D-ell XPS, Surface..
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USB C to Ethernet Adapter, Driver Free Gigabit RJ45 to USB C [Thunderbolt 3/4 Compatible] Ethernet LAN Network Adapter, Compatible with Mac-Book Pro 2020/2019/2018, i-Pad Pro, D-ell XPS, Surface..

Limited time offer, ends 08/30

  • LEDs: Yes
  • Package Contents: 1 x USB C to Ethernet Adapter
  • Class: 1000M, Single RJ45
  • Model #: Z3#Q2455_GR
Broadcom NetXtreme BCM5719-4P Quad-Port Ethernet Server Adapter PCI Exrpess 2.1 x 4
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Broadcom NetXtreme BCM5719-4P Quad-Port Ethernet Server Adapter PCI Exrpess 2.1 x 4
  • Standards: IEEE 802.3ab 1000BASE-T IEEE 802.3u 100BASE-TX IEEE 802.3i 10BASE-T IEEE 802.1q—VLAN tagging support IEEE 802.3x—Flow control IEEE 802.3az—EEE
  • Windows Vista: Microsoft—Windows Server 2008, 2008 R2, and 2012, all editions Linux – Red Hat Enterprise Linux (RHEL) 5.9/5.8, 6.4/6.3 – Novell SUSE Linux Enterprise Server (SLES) 10 SP4/SP3, 11 U3/U2 VMware—vSphere 5.x Citrix—XenServer 6.1
  • Model #: BCM5719-4P
Broadcom BCM5719-4P - 4 x 1GbE PCIe NIC
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Broadcom BCM5719-4P - 4 x 1GbE PCIe NIC
  • Connectors: 4 x RJ45
  • Model #: BCM95719A1904AC
Intel PRO/1000 PT Desktop Adapter
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Intel
Intel PRO/1000 PT Desktop Adapter
  • Model #: EXPI9404PTLBLK-1PK
Intel PWLA8490XF 10/100/1000Mbps PCI PRO/1000 XF Server Adapter
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Intel
Intel PWLA8490XF 10/100/1000Mbps PCI PRO/1000 XF Server Adapter
  • Standards: IEEE802.2,802.3z
  • Connectors: 1 x SC
  • On-board Memory: 64KB
  • Temperature: 0-55°C
  • Model #: PWLA8490XF
EMC QLE2462-E-SP 4Gbps PCI-Express Dual Port Fiber Channel Host Bus Adapter
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  • $39.95 
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TAA GIG PCIE FIBER ADAPTER
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TAA GIG PCIE FIBER ADAPTER
  • Model #: AT-2914SX/LC-901
EXPI9402PT INTEL PRO/1000 PT Dual Port PCI Express Server Network Adapter
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HP AE312A Data Transfer Rate:  4 Gbps 2 Gbps 1 Gbps PCI-Express StorageWorks FC1242SR Dual Channel Fibre Channel Host Bus Adapter
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HP
HP AE312A Data Transfer Rate: 4 Gbps 2 Gbps 1 Gbps PCI-Express StorageWorks FC1242SR Dual Channel Fibre Channel Host Bus Adapter
  • Connectors: 2 x LC
  • Dimensions: 6.60" x 2.54"
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: AE312A
SIIG DP Gigabit Ethernet PCIe
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SIIG DP Gigabit Ethernet PCIe

OUT OF STOCK

  • Weight: 0.2
  • Package Contents: DP Gigabit Ethernet PCIe Spare Enhanced Low Profile Bracket Driver CD User's Manual
  • Parts: 5 Year
  • Model #: CN-GP1021-S3
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  • $33.99 
  • 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:

Anonymous
12/23/2024 9:55:48 AM
Great item and value. Works Great.

“ Needed to replace the onboard network adapter. This adapter was easy to install and setup. ”

2.5GBase-T PCIe Network Adapter, 2500/1000/100Mbps PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support Windows Server/Windows, Standard and Low-Profile Brackets Included PCIe to 2.5 Gigabit