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Vszerda New 1 Port PCIe Network Card with Realtek RTL8111H Chip M.2 B-Key M-Key to RJ45 Ethernet 1000Mbps Adapter/Mini PCIE Gigabit Network Adapter Card 10/100/1000M (M.2 to RJ45)
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Vszerda New 1 Port PCIe Network Card with Realtek RTL8111H Chip M.2 B-Key M-Key to RJ45 Ethernet 1000Mbps Adapter/Mini PCIE Gigabit Network Adapter Card 10/100/1000M (M.2 to RJ45)

Limited time offer, ends 08/20

  • Brand: Vszerda
  • Part Number: N37472-3
  • Standards: Ethernet
  • Speed: 1000 megabits_per_second
  • Model #: N3747J1
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  • $39.29 
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HP FlexFabric 10Gb 2-port 533FLR-T FIO Adapter
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HP
HP FlexFabric 10Gb 2-port 533FLR-T FIO Adapter
  • Parts: 1 Year
  • Model #: 700760-B21
  •  
  • $277.12 
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Vszerda New 1 Port PCIe Network Card with Realtek RTL8111H Chip M.2 B-Key M-Key to RJ45 Ethernet 1000Mbps Adapter/Mini PCIE Gigabit Network Adapter Card 10/100/1000M (Mini PCIE Gigabit)
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Vszerda New 1 Port PCIe Network Card with Realtek RTL8111H Chip M.2 B-Key M-Key to RJ45 Ethernet 1000Mbps Adapter/Mini PCIE Gigabit Network Adapter Card 10/100/1000M (Mini PCIE Gigabit)

Limited time offer, ends 08/20

  • Brand: Vszerda
  • Part Number: N37472-3
  • Standards: Ethernet
  • Speed: 1000 megabits_per_second
  • Model #: N3747L98
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  • $39.29 
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LR-LINK 1GB PCIE network card NIC Compatible for Intel I350, Dual Port Ethernet card,1G LAN Adapter Support Windows Server/Windows, Linux, Vmware Dual-Port Gigabit
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LR-LINK 1GB PCIE network card NIC Compatible for Intel I350, Dual Port Ethernet card,1G LAN Adapter Support Windows Server/Windows, Linux, Vmware Dual-Port Gigabit
  • Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab
  • Connectors: 2 x RJ45
  • Temperature: 0°C ~ 55°C
  • Humidity: 0 % ~ 90 % (Non-condensing)
  • Model #: 6925909301864
  •  
  • $130.99 
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HP FlexFabric 10Gb 2-Port 534FLR-SFP+ FIO Adapter
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HP
HP FlexFabric 10Gb 2-Port 534FLR-SFP+ FIO Adapter
  • Weight: 20
  • Parts: 1 Year
  • Labor: 1 Year
  • Model #: 700752-B21
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  • $277.12 
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HPE 684218-B21 Ethernet 10Gb 2-Port 560FLR-SFP+ Adapter
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HP
Refurbished HPE 684218-B21 Ethernet 10Gb 2-Port 560FLR-SFP+ Adapter
  • Electrical Outlet Plug Type: 10Gigabit Ethernet Card
  • Model #: 684218-B21
YGW92 Dell Emulex OCE14102-UX-D 10GBE Dual-Port Converged Network Adapter
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  • $53.39 
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HPE FlexFabric 10Gb 2-port 536FLB Adapter (766490-B21)
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HP
HPE FlexFabric 10Gb 2-port 536FLB Adapter (766490-B21)
  • Package Contents: FlexFabric 10Gb 2-port 536FLB Adapter Quick Install Card Product Warranty Statement
  • Model #: 766490-B21
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  • $240.76 
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HP 530M 10Gigabit Ethernet Card
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HP
HP 530M 10Gigabit Ethernet Card
  • Connectors: 2 x Network
  • Model #: 631884-B21
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  • $399.28 
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HP FlexFabric 20Gb 2-Port 630FLB Adapter
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HP
HP FlexFabric 20Gb 2-Port 630FLB Adapter
  • Package Contents: FlexFabric 20Gb 2-Port 630FLB Adapter Quick Install Card Product Warranty Statement
  • Parts: 1 Year
  • Model #: 700065-B21
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  • $337.24 
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QLogic QLE8440-CU 10Gigabit Ethernet Card
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QLogic QLE8440-CU 10Gigabit Ethernet Card
  • Package Contents: QLE8440-CU 10Gigabit Ethernet Card Standard-size Bracket
  • Parts: 3 Year
  • Model #: QLE8440-CU-CK
DELL 55G  Broadcom 57810S Mezzanine Card 10Gbe Network Adapter-55G
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  • $253.18 
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Dell Servers 540-BBIV Intel X710 SFP Plus Converged Network Adapter with Two Ports
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  • $210.98 
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Vszerda iHyper-Pro M.2 X16 to 4X PCIE 4.0 GEN4 Expansion Card Supports NVMe M.2 m Key 2280 up to 32Gbps for VROC NVMe Raid (iHyper-Pro)
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  • $98.19 
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F/S 669279-001 665249-B21 665247-001 HP NC560SFP 10GB DUAL PORT ADAPTER CARD
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  • $120.40 
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Vszerda iHyper-Pro M.2 X16 to 4X PCIE 4.0 GEN4 Expansion Card Supports NVMe M.2 m Key 2280 up to 32Gbps for VROC NVMe Raid (iHyper)
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Vszerda iHyper-Pro M.2 X16 to 4X PCIE 4.0 GEN4 Expansion Card Supports NVMe M.2 m Key 2280 up to 32Gbps for VROC NVMe Raid (iHyper)

Limited time offer, ends 08/20

  • Brand: Vszerda
  • Part Number: N38207-32702
  • Interface: solid_state_drive
  • BUS: solid_state_drive
  • Model #: F897W
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  • $55.29 
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516937-B21 HP 10GbE PCI Express G2 Dual Port Network Interface Card 518001-001
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  • $51.01 
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Dell 540-BBCE X520-DA2 10GBE Dual Port SFP+ PCIe Network Adapter
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  • $239.68 
  • Free Shipping
Dell 542-BBCM Intel X710 Quad Port 10Gb KR Blade Network Daughter Card
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  • $389.81 
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QLogic QLE3442-SR 10Gigabit Ethernet Card
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QLogic QLE3442-SR 10Gigabit Ethernet Card
  • Package Contents: QLE3442-SR 10Gigabit Ethernet Card Standard-size Bracket Low-Profile Bracket
  • Parts: 3 Year
  • Model #: QLE3442-SR-CK
AXIOM 10/100/1000MBS QUAD PORT RJ45 PCIE X4 NIC CARD FOR INTEL - I350T4, I350-T4
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  • $283.63 
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Hp Nc3134 Pci 10/100 Dual Port 64Bit Fast Ethernet Network Interface Card
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  • $36.01 
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WiFi 6E AX210 PCIe WiFi Network Card BT5.3 for Desktop PC, Tri-Band 6Ghz/5.8GHz/2.4GHz Wireless Adapter with AX210ngw chip, MU-MIMO, WPA3, OFDMA, Low-Profile Bracket, Support Windows 11/10(64Bit)
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WiFi 6E AX210 PCIe WiFi Network Card BT5.3 for Desktop PC, Tri-Band 6Ghz/5.8GHz/2.4GHz Wireless Adapter with AX210ngw chip, MU-MIMO, WPA3, OFDMA, Low-Profile Bracket, Support Windows 11/10(64Bit)

Limited time offer, ends 08/20

  • Brand: Vszerda
  • Standards: IEEE 802.11ac
  • Speed: 2400 megabits_per_second
  • Connectors: IEEE 802.11ac
  • Model #: HS5554
  •  
  • $46.29 
  • 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)
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