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Dual 2.5 Gigabit mini PCIe Ethernet Network Expansion Card
- Model #: SI-MPE24079
- $46.48 –
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- Part Number: 00M95
- Parts: 30 Days
- Labor: 30 Days
- Model #: 00M95
- $54.95 –
- More options from $54.95 - $87.80
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StarTech.com 2-Port 5G Gigabit PCIe Network Adapter Card - PCI Express LAN Card - Realtek RTL8126 - Windows and Linux - TAA PR25GR-NETWORK-CARD
- Brand: StarTech
- Parts: 2-Year
- Labor: 2-Year
- Model #: PR25GR-NETWORK-CARD
- $153.74
- $150.62 –
- More options from $148.99 - $162.16
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- Brand: NVIDIA
- Part Number: MCX512A-ACAT
- Speed: Data Rate: 1/10/25 Gb/s Ethernet
- Connectors: Dual SFP28 Ethernet (copper and optical)
- Model #: MCX512A-ACAT
- $229.95 –
- More options from $229.95 - $715.79
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10G Network Adapter PCI-E x1 Card with Single RJ-45 Port, RIITOP PCI-e to 10Gb Gigabit Ethernet Adapter, Supports Windows 11/10/8.1/8/7, Servers 2019/2016/2012 R2, and Linux
Limited time offer, ends 09/29
- Model #: PCE1X-10G-1P
- $67.99 –
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- Brand: Intel
- Model: X540-T2
- Part Number: X540-T2
- Standards: IEEE 802.3 – Original Ethernet standard (10 Mbps) IEEE 802.3u – Fast Ethernet (100 Mbps) IEEE 802.3ab – Gigabit Ethernet over copper (1000BASE-T) IEEE 802.3an – 10 Gigabit Ethernet over copper (10GBASE-T) IEEE 802.3x – Flow control (full-duplex) IEEE 802.3ad – Link aggregation / LACP (teaming multiple ports) IEEE 802.1Q – VLAN tagging IEEE 802.1p – Quality
- Model #: 4248-A
- $79.99 –
- More options from $79.89 - $175.00
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LSI 9211-8I RAID Controller Card FW:P20 IT Mode ZFS FreeNAS unRAID SAS PCI E RAID Expander + 2* SFF8087 SATA Cable
- Model #: 69089112157
- $88.00 –
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- Model #: 807N9, 0F4YMD, CN-0F4YMD
- $23.99 –
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QNAP Thunderbolt 5 Dual Ports Expansion Card, PCIe Gen4 x4 (QXP-T52P)
- Model #: TOLDB0GJJMQZ8F
- $286.19 –
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- Brand: NVIDIA
- Part Number: 900-9D3B6-00SV-AA0
- Connectors: 2-Ports QSFP112
- Features: Series / Cores: P-Series / 16 Arm-cores Data Transmission Rate: InfiniBand: NDR200 200Gb/s, Ethernet: 200GbE (Default) PCIe Support: PCIe Gen 5.0 x16 x16 PCIe Extension Option External Power Connector On-Board DDR5 Memory: 32GB Integrated BMC Crypto Disabled
- Model #: 900-9D3B6-00SV-AA0
- $4,500.00 –
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- $223.09 –
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Intel PWLA8492MT 10/100/1000Mbps PCI / PCI-X PRO/1000 MT Dual Port Server Adapter
- Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab
- Connectors: 2 x RJ45
- On-board Memory: 128KB
- Wake On LAN: Yes
- Model #: PWLA8492MT
- $159.00 –
- More options from $159.00 - $196.56
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IOCREST IO-M2F113-GLAN, M.2 (B+M Key) to Single-Port 10G Gigabit Network Adapter, AQC113 Chip, 1×RJ45 Port with LED Indicator, Supports Windows and Linux Systems
Limited time offer, ends 10/15
- Model #: IO-M2F113-GLAN
- $145.99 –
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Intel Ethernet Converged Network Adapter X710-DA4, Quad-port 10GbE adapters | X710DA4FH
- Class: N/A
- Model #: X710DA4FH
- $444.99
- $237.82 –
- Save: 46%
- More options from $237.82 - $578.57
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Mellanox ConnectX-3 10Gigabit Ethernet Card
- Model #: MCX354A-TCBT
- $28.88 –
- More options from $28.88 - $32.01
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Intel EXPI9402PT 10/100/1000Mbps PCI-Express PRO/1000 PT Dual Port Server Adapter
- Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab, IEEE802.3x
- Connectors: 2 x RJ45
- BUS: PCI Express 1.0a
- LEDs: 4 (1/port, link and speed) solid and blinking
- Model #: EXPI9402PT
- $65.00
- $49.44 –
- Save: 23%
- More options from $49.44 - $57.15
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QNAP QXG-2G2T-I225 Dual Port 2.5GbE 4-Speed Network Card
- Model #: QXG2G2TI225
- $107.99 –
- More options from $107.99 - $232.00
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NGFF A/E-Key WiFi to PCIe x1 Adapter Card, PCI Express A+E Key Converter for WiFi6 WiFi7 Bluetooth Wireless Cards
Limited time offer, ends 10/08
- Model #: C24W-X8243
- $21.14 –
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WiFi 6E AX5400 PCIe WiFi Card for Desktop PC (Intel AX210) Bluetooth 5.3, WPA3, 802.11AXE Tri Band Wireless Adapter with MU-MIMO, OFDMA, Ultra-Low Latency, Supports Windows 11, 10 (64bit)
Limited time offer, ends 10/17
- Brand: Vszerda
- Part Number: PCE-AX200
- Speed: 5400 megabits_per_second
- Dimensions: 12.0 in x 8.0 in x 2.0 in
- Model #: PCEAX210
- $49.29 –
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StarTech 2-Port 2.5Gbps NBASE-T PoE Network Card, Dual Intel I225-V, 802.3af/at PoE+ Multi-Gigabit NIC, PCI Express Server LAN Card, LP4/8-Pin PCIe-Powered Model PR22GIP-NETWORK-CARD
- Brand: StarTech
- Model: PR22GIP-NETWORK-CARD
- Part Number: PR22GIP-NETWORK-CARD
- Standards: IEEE 802.3at Power over Ethernet, IEEE 802.3af Power over Ethernet, IEEE 802.3bz (2.5GBASE-T), IEEE 802.3ab (1000BASE-T ), IEEE 802.3u (100BASE-TX ), IEEE 802.3i (10BASE-TX), IEEE 802.1Q (VLAN), IEEE 802.1p (QoS), IEEE 802.1AS (AVB), IEEE 802.1X (WoL), IEEE P802.3az (EEE), IEEE 1588 (PTP), PCI Express Version 2
- Model #: PR22GIP-NETWORK-CARD
- $219.91
- $217.72 –
- More options from $213.99 - $234.72
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- Brand: Intel
- Model: X540T2
- Part Number: X540-T2
- Standards: IEEE 802.3 – Original Ethernet standard (10 Mbps) IEEE 802.3u – Fast Ethernet (100 Mbps) IEEE 802.3ab – Gigabit Ethernet over copper (1000BASE-T) IEEE 802.3an – 10 Gigabit Ethernet over copper (10GBASE-T) IEEE 802.3x – Flow control (full-duplex) IEEE 802.3ad – Link aggregation / LACP (teaming multiple ports) IEEE 802.1Q – VLAN tagging IEEE 802.1p – Quality
- Model #: 2ee-307377000192848
- $81.99 –
- More options from $81.89 - $175.00
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Refurbished TERADICI TERA 2220 PCOIP PCI-E 3.0 X1 Remote Access Host Card 1x RJ-45 Port, 2x
- Model #: TERA 2220
- $35.99 –
- $11.00 Shipping
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PCI Express x1 Single Port 802.3at PoE+ Gigabit Vision Frame Grabber Card
- Connectors: 1 x RJ45
- Temperature: 0°C ~ 55°C
- Humidity: 5 % ~ 95 % (Non-condensing)
- Class: 1000M, PCIE
- Model #: LRES2001PT-POE
- $75.32 –
- $10.00 Shipping
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10G PCIe Network Adapter, AQUANTIA AQC107 chip Binardat LAN Ethernet Controller, 10G/5G/2.5G/1G/100Mbps RJ45 NIC Card,Support PXE for Windows/Linux
- Model #: 6909494159
- $49.99 –
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Intel Ethernet Server Adapter I350-T2
- Connectors: 2 x RJ45 Network
- Package Contents: Ethernet Server Adapter I350-T2 Informational CD Bracket
- Parts: Lifetime Limited
- Labor: 30 DAYS WARRANTY
- Model #: I350T2
- $132.09 –
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- Parts: 30 Days
- Labor: 30 Days
- Model #: 716591-B21-REF
- $35.99 –
- More options from $35.99 - $52.76
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- Model #: IN#I350T2V2BLK
- $110.70 –
- More options from $110.70 - $151.40
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- Connectors: 2 x RJ45
- Features: Data Link Protocol: GigE Data Transfer Rate: 1 Gbps Processor: 1 x BCM5720 - Broadcom Designed For: PowerEdge R320, R420, R430, R520, R620, R630, R720, R720xd, R820
- Weight: 0.42
- Parts: 30 DAYS WARRANTY
- Model #: 540-BBGW
- $29.99 –
- More options from $29.99 - $120.91
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Intel E1G44ET 10/100/1000Mbps PCI-Express Gigabit Ethernet Quad Port Server Adapter
- Connectors: 4 x RJ45
- Wake On LAN: Yes
- Parts: Lifetime limited
- Labor: Lifetime limited
- Model #: E1G44ET
- $85.89 –
- More options from $85.89 - $91.19
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- $57.65 –
- More options from $57.65 - $95.00
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LR-LINK POE+ 1GB network card NIC Compatible for Intel I350AM4*2, 8*RJ45 Port Ethernet card,1G LAN Adapter Support Windows Server/Windows, Linux, Vmware
- Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab, IEEE802.3x
- Connectors: 8*RJ45
- Temperature: 0°C ~ 55°C
- Humidity: 5 % ~ 95 % (Non-condensing)
- Model #: 6925909302342
- $528.00 –
- $10.00 Shipping
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BCM5719A1904G 00E2872 IBM Broadcom 4-Port PCI-E Network Adapter
- Model #: BCM5719A1904G-00E2872
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:
John H.
10/19/2025 1:27:45 PM
Works great, once SFP-vendor-unlocked
“ Great price for a 10G-capable adapter ”
Intel X520-SR2 Dual Ports 10 Gigabit Ethernet Converged Network Adapter, PCI Express 2.0 x8, Low ProfileROBERT S.
12/24/2024 9:32:56 AM
Everything up to 10GB
“ Intel card works with every device NIC I have with no issues ”
Intel Ethernet Converged Network Adapter X550, Backward compatible 10GBASE-T network adapter | X550T2Brandon 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