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QNAP 2PORT QSFP28 100GBE NETWORK EXPANSION CARD LP PCIE GEN4X16
- Model #: QXG100G2SFE810
- $1,011.99 –
- More options from $1,011.99 - $1,299.00
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ATTO FFRM-N322-DA0 25Gigabit Ethernet Card
- Model #: FFRM-N322-DA0
- $706.99 –
- More options from $706.99 - $818.38
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SIIG LB-WR0011-S1 PCI-Express Wireless 2T2R Dual Band WiFi Ethernet PCIe Card - AC1200
- Temperature: Operating temperature: 32 to 140 degrees F Storage temperature: -14 to 158 degrees F
- Humidity: 5% to 90% RH (non-condensing)
- Dimensions: 2.60" x 4.72" x 0.71"
- Weight: 0.10 lb.
- Model #: LB-WR0011-S1
- $36.99 –
- More options from $36.99 - $52.44
- $11.20 Shipping
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Intel E10G42BT 10Gbps PCI Express x8 X520-T2 10Gigabit Ethernet Card
- Connectors: 2 x RJ45
- Parts: Lifetime limited
- Labor: Lifetime limited
- Model #: E10G42BT
- $141.24 –
- More options from $141.24 - $411.71
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Synology Adapter E10G30-T1 Single-Port 10GbE
- Brand: HP
- Part Number: E10G30-T1
- Connectors: 1 x RJ45
- Features: Single-Port 10GbE, 10 gigabits_per_second, ethernet, Desktop, 5 Year Manufacturer
- Model #: E10G30-T1
- $157.65 –
- More options from $143.99 - $169.25
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StarTech US1GA30SXSC USB to Fiber Optic Converter - 1000Base-SX SC - MM - Windows / Mac / Linux - USB 3.0 Ethernet Adapter - Network Adapter
- Standards: IEEE 802.3z 1000BASE-SX IEEE 802.1Q VLAN tagging
- Connectors: 1 x 9 pin USB 3.0 A Female 1 x Fiber Optic SC Duplex Female
- LEDs: 1 x Power 1 x Link / Activity
- Wake On LAN: Yes
- Model #: US1GA30SXSC
- $301.34
- $291.85 –
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- $149.00 –
- More options from $149.00 - $348.00
- $8.90 Shipping
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PCI Express Network Card RTL8125GB Gigabit Ethernet PCIE Network card 2.5Gbps LAN Adapter 1Port RJ45 Network Card for Desktop PC
Limited time offer, ends 08/07
- Model #: 4687964089
- $32.39 –
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SAS Slim 4.0 SFF-8654 8i PCI-E Ultraport Slimline 74pin to Dual SFF-8643 4i Cable PCI-Express Mini SAS HD
Limited time offer, ends 08/07
- Model #: 4687963725
- $41.89 –
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- Brand: Lenovo
- Model #: 4XC1K80847
- $114.60 –
- More options from $114.60 - $131.85
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2PORT GBE PCIE 4LANE CARD
- Brand: SIIG
- Part Number: LB-GE0014-S1
- Speed: 1000 megabits_per_second
- Interface: pci_x_4
- Model #: LB-GE0014-S1
- $162.75 –
- More options from $137.99 - $199.99
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Micron MTA36ASF4G72PZ-3G2R1 Memory 32GB DDR4 3200MHz - MEM-DR432L-CL06-ER32
- Model #: WDN-Micron-MTA36ASF4G72PZ-3G2R1
- $299.00 –
- More options from $299.00 - $327.35
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- Brand: Intel
- Part Number: E8102CQDA2
- Features: Adapter Features Data Rate Supported: 100/50/25/10GbE per port Bus Type/Bus Width: PCIe 4.0 x16 Note: full 200Gbps performance requires PCIe slot bifurcation enabled in the system BIOS Hardware Certifications: BSMI, CE, CMIM, FCC, ICES, KCC, RCM, UKCA, cURus, and VCCI BMSI RoHS and RoHS-compliant: Product is compliant with Taiwan Bureau of Standards, Metrology and Inspection (BMSI), and EU RoHS Directive 2 2011/65/EU (Directive 2011/65/EU) and its amendments (e.g. 2015/863/EU) Controller: Intel® Ethernet Controller E810-CAM1 (two controllers per adapter) Power Consumption DAC's 100GbE (Typical Power) Max 21.8 W 29.6 W (Max Power) Idle (no traffic) 19.2 W (Typical Power) Optics 100GbE Max 25.3 W (Typical Power) 33.5 W (Max Power) Idle (no traffic) 22.8 W (Typical Power) QSFP28 Max Pow...
- Model #: E8102CQDA2
- $834.74
- $794.38 –
- More options from $715.99 - $794.38
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- $53.00 –
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- Standards: IEEE 802.1Q VLANs IEEE 802.3ad IEEE 802.3 (z, ab, u, x) flow control support IEEE 802.1p IEEE 802.3z
- Connectors: 2 x LC
- BUS: PCI Express 1.0a
- LEDs: 4 (1/port, link and speed) solid and blinking
- Model #: EXPI9402PF
- $182.25 –
- More options from $182.25 - $206.95
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- Standards: IEEE 802.3z
- Connectors: 2 x LC
- On-board Memory: 128 KB (64 KB per port)
- Wake On LAN: Yes
- Model #: PWLA8492MF
- $268.25 –
- More options from $265.57 - $275.00
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- Connectors: 2 x LC
- LEDs: 2 (on dual port), 1 (on single port), LINK (solid), and ACTIVITY (blinking)
- Temperature: 0°C ~ 55°C
- Humidity: 90% non-condensing relative humidity at 35° C
- Model #: EXPX9502AFXSR
- $82.10 –
- More options from $82.10
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- $530.49 –
- More options from $530.49 - $671.30
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QNAP 2PORT SFP28 25GBE NETWORK EXPANSION CARD LP PCIE GEN4X8 PCIE
- Model #: QXG25G2SFCX6
- $476.01 –
- More options from $449.00 - $548.00
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- Model #: E810XXVDA2OCPV3
- $273.04 –
- More options from $272.74 - $349.00
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StarTech.com 4-Port 2.5Gbps NBASE-T PCIe Network Card, Intel I225-V Chip, Quad Port Computer Network Card, Multi-Gigabit
- Color: Gray
- Dimensions: 5.920 x 8.520 x 1.480
- Weight: 0.4400
- Model #: PR42GI-NETWORK-CARD
- $227.54
- $220.67 –
- More options from $220.67 - $235.88
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- Connectors: 2 x RJ-45 10/100/1000Base-T LAN
- Features: Compatibility: Intel Server Chassis SR1500 Intel Server Chassis SR1550 Intel Server Chassis SR2500 Intel Server System SR1500AL Intel Server System SR1500ALSAS Intel Server System SR1550AL Intel Server System SR1550ALSAS Intel Server System SR2500ALBRP Intel Server System SR2500ALLX
- Parts: Lifetime limited
- Labor: Lifetime limited
- Model #: AXXGBIOMOD
- $86.10 –
- More options from $86.10
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AddOn Lenovo 4X90E51405 Compatible USB 3.0 (A) Male to RJ-45 Female Black Adapter - 100% compatible
- Connectors: 10/100/1000Base-T
- Model #: 4X90E51405-AO
- $35.86 –
- More options from $35.86 - $41.64
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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
- Model #: ST7387
- $45.00
- $40.99 –
- Save: 8%
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QLogic QLE2562-CK 8Gbps PCI-Express True enterprise dual port 8Gb Fibre Channel-to-PCI Express adapter
- Connectors: 2 x LC
- Temperature: 0°C ~ 55°C
- Humidity: 10 % ~ 90 % (Non-condensing)
- Weight: 0.62
- Model #: QLE2562-CK
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Emulex LPE12002-M8 8Gbps PCI-Express LightPulse Fibre Channel Host Bus Adapter
- Connectors: 2 x LC
- Dimensions: 6.60"x 2.54"
- Parts: 3 years limited
- Labor: 3 years limited
- Model #: LPE12002-M8
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- Parts: 30 DAYS WARRANTY
- Labor: 30 DAYS WARRANTY
- Model #: E10G41BFSRBLK
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Transition Networks N-GXE-LC-01 1000Mbps PCI-Express Fiber Gigabit Ethernet Network Interface Card
- Standards: IEEE 802.3z Gigabit Ethernet 1000Base-SX/LX IEEE 802.3x Full-Duplex Flow Control IEEE 802.1Q VLAN
- Connectors: 1 x LC
- BUS: PCI-e 1.1
- LEDs: LINK/ACT (Link/Activity): ON = communication link; FLASHING = activity on link FDX (Full-duplex): ON = Full-duplex link
- Model #: N-GXE-LC-01
- $169.99 –
- More options from $169.99 - $189.00
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Allied Telesis AT-2711FX/SC-901 10/100Mbps PCI Express x1 Fiber 100Base-FX Network Adapter
- Standards: IEEE 802.3u, IEEE 802.1Q, IEEE 802.1p, IEEE 802.3x, IEEE 802.1x, IEEE 802.1ad
- Connectors: 1 x SC 100Base-FX
- Weight: 0.21
- Parts: 1 year limited
- Model #: AT-2711FX/SC-901
- $235.61 –
- More options from $189.07 - $235.68
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- $164.00 –
- More options from $164.00 - $169.00
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- $296.99 –
- More options from $296.99 - $331.51
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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
- $178.20 –
- More options from $178.20 - $180.99
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Solarflare SFN5122F Dual-Port 10 GbE SFP+ Enterprise Server Adapter
- Standards: IEEE 802.3ae IEEE 802.3ad IEEE 802.1Q IEEE 802.1p IEEE 802.3x
- Connectors: 2 x SFP+
- Dimensions: L: 16.74 cm (6.59 in) W: 6.89 cm (2.71 in)
- Weight: 0.45 lb.
- Model #: SFN5122F
- $69.99 –
- More options from $69.99 - $139.98
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PNY NVIDIA Quadro P600 2GB GDDR5 4Mini DisplayPorts PCI-Express Video Card
- Model #: MLPNY-P600
- $98.00 –
- More options from $98.00
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- Connectors: 4 x RJ45
- Dimensions: 5.3" x 2.7"
- Weight: 0.65
- Parts: 1 year limited
- Model #: 593722-B21
- $80.14 –
- More options from $80.14 - $81.53
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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:
J.L
9/20/2023 9:30:58 PM
Rock solid connection .... the magic of Aquantia Chip !
“ You need a 10G Network card on copper, just buy this ! ”
TP-Link 10Gbps PCIe Network Card (TX401) - PCIe to 10 Gigabit Ethernet Network Adapter, Supports Windows 10/8.1/8/7, Windows Servers 2019/2016/2012 R2, and Linux, Including a CAT6A Ethernet CableBrandon 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