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IHDAPP USB to Ethernet Adapter 5Gbps, Aluminum Driver Free USB-C to RJ45 5000Mbps Gigabit Ethernet LAN Network Adapter for i-Phone 16, iPad, Galaxy S25,Switch,Laptop, PC, MacBook,Windows, MacOS, Linux
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IHDAPP USB to Ethernet Adapter 5Gbps, Aluminum Driver Free USB-C to RJ45 5000Mbps Gigabit Ethernet LAN Network Adapter for i-Phone 16, iPad, Galaxy S25,Switch,Laptop, PC, MacBook,Windows, MacOS, Linux

Limited time offer, ends 05/16

  • Connectors: 1 x RJ45
  • Package Contents: 1-Pack USB C to Ethernet Adapter 5 Gbps
  • Class: 5G, Sing RJ45
  • Model #: Z3#Q2958_GR
  •  
  • $43.99 
  • Free Shipping
435508-B21 436431-001 HP NC364T Quad Port Gigabit PCI-E Ethernet Adapter
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HP
435508-B21 436431-001 HP NC364T Quad Port Gigabit PCI-E Ethernet Adapter
  • Model #: 435508-B21-436431-001-435506-003-hp-new
491838-001 HP NC375i Quad Port Gigabit Ethernet PCI-E Server Network Adapter
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INTEL XXV710DA1 INTEL ETHERNET NETWORK ADAPTER XXV710-DA1 - SINGLE PORT;
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  •  
  • $99.99 
  • Free Shipping
QLogic QLE8242-CU-CK Fiber Optic Card
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QLogic QLE8242-CU-CK Fiber Optic Card
  • Package Contents: QLE8242-CU-CK Fiber Optic Card Spare? Low-Profile Bracket ? ?Quick? Start? Guide?
  • Parts: 3 Year
  • Labor: 30 DAYS WARRANTY
  • Model #: QLE8242-CU-CK
HP NC375T 539931-001 491176-001 538696-B21 PCI-E QP Gigabit Server Network Card
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EM212-L3TA-SS IBM 2Gbps PCI-X Single Port Fibre Channel Adapter
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HPE AJ762B 81E 8Gb 1-port PCIe Fibre Channel Host Bus Adapter
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HP
Refurbished HPE AJ762B 81E 8Gb 1-port PCIe Fibre Channel Host Bus Adapter
  • Electrical Outlet Plug Type: Fibre Channel Host Bus Adapter
  • Model #: AJ762B
Supermicro 10 Gigabit Ethernet Adapter
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Supermicro
Supermicro 10 Gigabit Ethernet Adapter
  • Parts: 3 Year
  • Model #: AOC-CTG-I2T
RN219 0RN219 Dell XF SERIES Single-Port 10Gbps PCI-E Server Network Adapter
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NC301 0NC301 Dell PRO/1000 Gigabit Network Interface Adapter
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49Y4231 49Y4232 IBM Intel Ethernet Dual Port Server Adapter 1340-T2 For System X
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NVIDIA MCX555A-ECAT ConnectX-5 VPI Adapter Card EDR/100GbE MCX555AECAT
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  •  
  • $615.61 
NETWORK MANAGEMENT CARD FOR
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NETWORK MANAGEMENT CARD FOR
  • Brand: APC
  • Model #: AP9544
593742-001 HP NC523SFP DUAL PORT 10Gb SERVER NETWORK ADAPTER QLE3242-HP
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Digi 50000899-01 SYNC 570I PCI 2-Port Universal Interface Board Adapter
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  •  
  • $179.00 
  • $15.00 Shipping
IBM AHA-2940U2B 00N3269 PCI WIDE ULTRA2 SCSI CONTROLLER CARD
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94Y5167 49Y4241 IBM I340-T4 Quad-Ports Gigabit Ethernet Server Network Adapter
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593742-001 593715-001 HP NC523SFP DUAL PORT SFP+ 10Gb SERVER NETWORK ADAPTER
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IBM 49Y4250 10Gbps PCI-Express Emulex 10Gb Virtual Fabric Adapter for IBM System x
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IBM 49Y4250 10Gbps PCI-Express Emulex 10Gb Virtual Fabric Adapter for IBM System x
  • Standards: IEEE 802.3ae (10Gb/s Ethernet XAUI) IEEE 802.1q (VLAN) IEEE 802.1Qbb (Priority flow control) IEEE 802.1Qaz (ETS and Congestion Management) IEEE 802.1p (QoS/CoS) IEEE 802.3ad (Link Aggregation) IEEE 802.3x (Flow Control)
  • Connectors: 2 x SFP+
  • Temperature: Operating: 0° to 55° C (32° to 131° F) Non-operating: -40° to 70° C (-40° to 158° F)
  • Humidity: 5 % ~ 95 % (Non-condensing)
  • Model #: 49Y4250
700699-B21 HP 10GB Dual-Port 561FLR-T PCI-E Ethernet Adapter Card
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Mellanox InfiniHost III Ex MHEA28-XTC Infiniband Host Bus Adapter
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Mellanox InfiniHost III Ex MHEA28-XTC Infiniband Host Bus Adapter
  • Connectors: 2 x MicroGiGaCN Infiniband
  • Model #: MHEA28-XTC
DELL 342-3536 PERC H710P INTEGRATED RAID CTRL CARD
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779793-B21 779791-001 HP 546SFP+ Dual Port Gigabit Ethernet PCIe Network Adapter
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IBM 49Y4235 10Gbps PCIe Express 2.0 x 8 Emulex Virtual Fabric Fibre Channel Host Bus Adapter for IBM BladeCenter
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IBM 49Y4235 10Gbps PCIe Express 2.0 x 8 Emulex Virtual Fabric Fibre Channel Host Bus Adapter for IBM BladeCenter
  • Standards: IEEE 802.3ae (10Gb/s Ethernet), 802.1q(VLAN), 802.1p(QoS/CoS), 802.3ad (Link Aggregation), 802.3x (Flow Control), 802.3ak(10GBase-CX4)
  • Connectors: 2 x Fiber Channel
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: 49Y4235
QLogic QLE3242-CU-CK 10Gbps PCI Express Gen2 x8 Dual Ethernet Network Adapter
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QLogic QLE3242-CU-CK 10Gbps PCI Express Gen2 x8 Dual Ethernet Network Adapter
  • Connectors: 2 Slots
  • Temperature: Operating: 0°C/32°F to 55°C/131°F Storage: –20°C/–4°F to 70°C/158°F
  • Humidity: Relative (non-condensing): 10% to 90% Storage: 5% to 95%
  • Dimensions: 2.54" x 6.60"
  • Model #: QLE3242-CU-CK
HPE 684214-B21 Ethernet 10Gb 2-Port 560FLB Adapter
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Brocade BR-425-0010 Dual Port Fibre Channel Host Bus Adapter
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Brocade BR-425-0010 Dual Port Fibre Channel Host Bus Adapter
  • Connectors: 2 x FC Fibre Channel
  • Model #: BR-425-0010
817745-B21 817743-001 HPE Dual Port 10Gbps 562FLR-T Ethernet Network Adapter
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647592-001 HP ETHERNET 1GB 4-PORT 331T ADAPTER 649871-001 647594-B21
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MELLANOXMellanox Mhgh28-Xtc Mellanox Infiniband 4X Ddr Connx Dual Channel Pcie Host Channel Adapter
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MELLANOXMellanox Mhgh28-Xtc Mellanox Infiniband 4X Ddr Connx Dual Channel Pcie Host Channel Adapter
  • Connectors: 2 x MicroGiGaCN Infiniband
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: MHGH28-XTC
Yealink WALL MOUNT-T53/54 Wall Mount for IP Phone
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Yealink WALL MOUNT-T53/54 Wall Mount for IP Phone
  • Brand: Yealink
  • Model #: WMBT53T53WT54WWB
  • $6.84 - $15.15

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

“ Select "Active Products" => "Network Connectivity" => "Intel Desktop Adapters" => "Intel Pro/1000 GT adapter". ”

Intel EXPI9301CTBLK Network Adapter 10/100/1000Mbps PCI-Express 1 x RJ45
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