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Neat Center Companion Device  NEATCENTER-SE
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Neat Center Companion Device NEATCENTER-SE
  • Brand: NEAT
  • Part Number: NEATCENTER-SE
  • Weight: 5.0000
  • Model #: NEATCENTER-SE
THINKSYSTEM RAID 530-8I PCIE
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Lenovo
THINKSYSTEM RAID 530-8I PCIE
  • Model #: 7Y37A01082
THINKSYSTEM RAID 930-16I 4GB
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Lenovo
THINKSYSTEM RAID 930-16I 4GB
  • Model #: 7Y37A01085
Dell 540-BCIX ConnectX-5 EX 2P 100G QSFP28 PCIe Adapter
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  • $686.00 
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Intel E10G42BFSR 10Gbps PCI Express 2.0 x8 X520-SR2 Ethernet Server Adapter
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Intel
Intel E10G42BFSR 10Gbps PCI Express 2.0 x8 X520-SR2 Ethernet Server Adapter
  • Connectors: 2 x LC
  • Parts: 30 days warranty
  • Labor: 30 days warranty
  • Model #: E10G42BFSR
Intel X520-DA2 10Gb Dual Port SFP Network Server Adapter High Profile
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Intel
Intel X520-DA2 10Gb Dual Port SFP Network Server Adapter High Profile
  • 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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  • $43.99 
Alta Labs Control On-Premise Network Controller - Compatible with All Alta Labs WiFi Access Points, Manage Up to 1,000 Devices, PoE+, Advanced Filtering, Hotspot, Secure Enterprise Network Manage
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  • $149.00 
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UOTEK Industrial PCI to RS-232 Serial Card RS232 8 Ports High Speed DR62 Converter DB9 Connector RTS/CTS XON/XOFF Control UT-768
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  • $125.19 
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qnap storage controller - pcie 3.0 low profile - pcie 3.0 x8
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Dell QLogic Fast LINQ 41112 10Gb SFP+ Dual Port PCIe NIC LP Ethernet Card 807N9
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  • $23.99 
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UOTEK Industrial PCIE to 8 Port RS485 RS422 High Speed Serial Card Converter ESD Anti-lightning  UT-798
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  • $132.70 
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Mellanox MHQH19B-XTR 40Gbps PCI Express 2.0 x8 ConnectX 2 VPI - Network adapter
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Mellanox MHQH19B-XTR 40Gbps PCI Express 2.0 x8 ConnectX 2 VPI - Network adapter
  • Standards: IEEE 802.1Q, IEEE 802.1p
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: MHQH19B-XTR
MELLANOX ConnectX-5 EN Network Interface Card, 25GbE Dual-port SFP28, PCIe3.0 x16, Tall Bracket, ROHS R6
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MELLANOX ConnectX-5 EN Network Interface Card, 25GbE Dual-port SFP28, PCIe3.0 x16, Tall Bracket, ROHS R6
  • Connectors: 25GBase-X
  • BUS: PCI Express 3.0 x16
  • Weight: 0.39
  • Parts: 1 Year
  • Model #: MCX512F-ACAT
HP 436431-001-R NC364T PCI Express Quad Port Gigabit Server Adapter
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HP
Refurbished HP 436431-001-R NC364T PCI Express Quad Port Gigabit Server Adapter
  • Parts: 30 DAYS WARRANTY
  • Labor: 30 DAYS WARRANTY
  • Model #: 436431-001
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  • $44.99 
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Mellanox Technologies MCX414A-BCAT CONNECTX-4 EN NETWORK INTERFACE
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  • $221.55 - $223.55

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 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