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ATTO FastFrame N322-10S 10Gigabit Ethernet Card - PCI Express 3.0 - SFP+ - Plug-in Card
- Parts: 3 Year
- Model #: FFRM-N322-10S
- $795.00
- $719.99 –
- Save: 9%
- More options from $719.99 - $1,341.99
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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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- Part Number: MCX75510AAS-NEAT
- Model #: MCX75510AAS-NEAT
- $1,961.99 –
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Tripp Lite EnviroSense2 (E2) Environmental Sensor Module with Temperature and Digital Outputs (E2MTDO)
- Series: EnviroSense2
- Type: Module
- Compatibility: WEBCARDLX, WEBCARDLXS, PDU3XE-Series PDUs and PDU3E-Series PDUs
- Dimensions: 0.83" x 2.52" x 1.77"
- Model #: E2MTDO
- $151.35 –
- More options from $151.35 - $156.12
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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
- $141.14 –
- More options from $141.14 - $411.71
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Open Box Broadcom P210TP Dual-Port 10GBASE-T Ethernet PCI Express Network Interface Card; RoHS-compliant | BCM957416A4160C
- Brand: Broadcom
- Part Number: BCM957416A4160C
- Speed: 10/1GbE
- Connectors: RJ45
- Model #: BCM957416A4160C
- $344.00 –
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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 10/06
- Model #: 4687964089
- $32.39 –
- Free Shipping
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Hynix HMA82GU6CJR8N-VK Memory 16GB DDR4 2666MHz 2RX8 UDIMM - MEM-DR416L-HL01-UN26
- Model #: WDN-Hynix-HMA82GU6CJR8N-VK
- $112.02 –
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ViewSonic Plug-and-play USB document camera
- Model #: VBVIS002
- $159.82 –
- More options from $150.99 - $239.00
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Allied Telesis AT-2911SX Gigabit Ethernet Card
- Weight: 0.25
- Model #: AT-2911SX/SC-901
- $65.23 –
- More options from $65.23 - $291.99
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BUCIER PA17 PCIe 5.0 X16 Riser Adapter Card, Left Angle and Low-Profile for 1U/2U Server Installation
- Brand: BUCIER
- Part Number: PA17-270D
- Standards: PCIe
- Connectors: PCIe
- Model #: 8567457990
- $39.99 –
- Free Shipping
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TRANSITION NETWORKS N-GXE-LC-02 NETWORK INTERFACE CARD
- Weight: 0.25
- Model #: N-GXE-LC-02
- $284.63 –
- More options from $277.99 - $386.00
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SEH RMK4 Rack Mount Kit M0124
- Weight: 2.1500
- Model #: M0124
- $181.02 –
- More options from $181.02 - $240.22
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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 10/06
- Model #: 4687963725
- $41.89 –
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StarTech.com Dual Port 10G PCIe Network Adapter Card, Intel-X550AT 10GBASE-T PCI Express 10GbE Multi Gigabit Ethernet 5 Speed NIC 2 Port
- Standards: IEEE 802.3an (10GBASE-T), IEEE 802.3ab (1GBASE-T), IEEE 802.3u (100BASE-T) PCI Express Rev 3.0
- Temperature: Operating Temperature:5 ~ 50 degree Celsius (41 ~ 122 degree Fahrenheit) Storage Temperature: -20 ~ 60 degree Celsius (-4 ~ 140 degree Fahrenheit)
- Humidity: 20% ~ 80% RH
- Dimensions: 0.70" x 4.70" x 5.90"
- Model #: ST10GPEXNDPI
- $475.48 –
- More options from $460.99 - $523.93
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GLOTRENDS ST7215 10Gb PCI-E NIC Network Card, Single Copper RJ45 Port, Intel X540-AT1 Controller, Support Windows Server/Linux/VMware, Compare to Intel X540-T1
- Class: Intel X540
- Model #: ST7215
- $45.99 –
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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
- $152.26 –
- More options from $137.99 - $199.02
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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
- $124.90 –
- More options from $124.90 - $289.20
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- $530.49 –
- More options from $530.49 - $669.79
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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
- $191.89 –
- More options from $191.89 - $261.00
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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
- $182.15 –
- More options from $182.15 - $206.95
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Micron MTA36ASF4G72PZ-3G2R1 Memory 32GB DDR4 3200MHz - MEM-DR432L-CL06-ER32
- Model #: WDN-Micron-MTA36ASF4G72PZ-3G2R1
- $435.71 –
- More options from $435.71 - $499.00
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Intel EXPI9404PTLBLK 10/100/1000Mbps PCI-Express PT Quad Port Low Profile Server Adapter
- Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab
- Connectors: 4 x RJ45
- BUS: PCI Express 1.0a
- LEDs: 4 (1/port, link and speed) solid and blinking
- Model #: EXPI9404PTLBLK
- $59.50 –
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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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- 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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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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- Brand: NVIDIA
- Part Number: MCX555A-ECAT
- Speed: InfiniBand: SDR/DDR/QDR/FDR/EDREthernet: 10/25/40/50/100 Gb/s
- Connectors: Single-port QSFP28
- Model #: MCX555A-ECAT
- $399.99 –
- More options from $399.99 - $989.00
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- Connectors: 2 Slots
- Dimensions: 2.70" x 6.60"
- Model #: 581201-B21
- $36.21
- $33.99 –
- Save: 6%
- More options from $33.99 - $35.99
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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
- $66.90 –
- More options from $66.90 - $139.98
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- Parts: 30 DAYS WARRANTY
- Labor: 30 DAYS WARRANTY
- Model #: E10G41BFSRBLK
- $55.28 –
- More options from $55.28 - $80.00
- Free Shipping
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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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OWC 10G ETHERNET PCIE NETWORK CARD
- Model #: OWCPCIE10GB
- $115.45 –
- More options from $115.45 - $118.55
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- Connectors: 4 x RJ45
- Dimensions: 5.3" x 2.7"
- Weight: 0.65
- Parts: 1 year limited
- Model #: 593722-B21
- $79.15 –
- More options from $79.15 - $81.53
- 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:
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