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StarTech.com 1-Port 2.5G NBASE-T PCIe Network Card Intel®I225-V, Single-Port Ethernet, Multi-Gigabit NIC
- Part Number: PR12GI-NETWORK-CARD
- Model #: PR12GI-NETWORK-CARD
- $45.99 –
- More options from $45.99 - $62.91
- $6.99 Shipping
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LSI 9220-8i RAID Controller Card SAS 6Gbps HBA FW:P20 9211-8i IT Mode ZFS FreeNAS unRAID Expander Card + 2 * SFF8087 SATA Cable
- Model #: 69089112220
- $69.00 –
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- Brand: Intel
- Part Number: E610XT4
- Model #: E610XT4
- $552.33
- $546.52 –
- More options from $546.52 - $566.37
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Refurbished V000270880 Toshiba Satellite C855D Mini Wireless Card
- Model #: V000270880
- $14.99 –
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vantec single port usb 3.2 gen2x2 20gbps type c pcie host card (ugt-pce320c)
- Brand: HP
- Part Number: UGT-PCE320C
- Connectors: USB
- Features: Classic
- Model #: RNAB08ZVRXKGB
- $58.22 –
- More options from $46.84 - $62.72
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StarTech 1-Port Gigabit PCIe Network Adapter Card, Low-Profile NIC ST1000SPEX2LT
- Brand: StarTech
- Model #:
- $36.99 –
- More options from $35.07 - $37.29
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Solarflare Flareon SFN8522-PLUS Dual-Port 10GbE SFP+ Network Adapter
- Weight: 0.55
- Model #: SFN8522-PLUS
- $369.96 –
- More options from $369.96 - $699.00
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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
- $51.00 –
- More options from $50.49 - $57.15
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Intel E1G42ET 10/100/1000Mbps PCI-Express Dual Port Server Adapter
- Connectors: 2 x RJ45
- Dimensions: 2.68" x 6.59"
- Weight: 20
- Parts: Lifetime limited
- Model #: E1G42ET
- $69.00
- $48.98 –
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2.5G PCIe Network Adapter RTL8125B 2500/1000/100Mbps, RIITOP PCI Express Gigabit Ethernet Card RJ45 LAN Controller Support PXE for Windows/Linux/MAC with Low Profile
Limited time offer, ends 07/27
- Model #: PCET25G-UT-RT
- $19.99 –
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12G External PCIe Controller Card, SAS/SATA HBA Card, Broadcom's SAS 3008 Chip, PCI Express 3.0 X8, 2X Mini SAS SFF-8644 Ports,Same as LSI SAS 9300-8E
- Model #: 69089112118
- $175.99 –
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SYBA Multimedia 2-Port Ethernet PCIe x1 Card
- Standards: IEEE 802.3, 802.3u, 802.3ab
- Dimensions: 1.50" x 5.50" x 7.00" (H x W x L)
- Weight: 0.28 lb
- Package Contents: 1 x Gigabit Ethernet PCIe Card 1 x User Manual 1 x Driver CD 1 x Low Profile Bracket
- Model #: SD-PEX24041
- $26.99 –
- More options from $26.99 - $33.70
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QNAP QXG-2G1T-I225, 2.5 GbE network expansion card, 1 x NBASE-T (RJ45)
- Model #: QXG-2G1T-I225
- $79.00 –
- More options from $79.00 - $136.24
- $11.20 Shipping
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USB 4.0 Type-C (Compatible to Thunderbolt 3) 10G Ethernet Adapter, For High-Speed Network Connections, RJ45 port supports 10Gb/s, 5Gb/s, 2.5Gb/s, 1Gb/s and 100Mb/s Base-T, Ideal for Mac Mini
Limited time offer, ends 07/31
- Class: 10G, PCIE
- Model #: SY-TDB24097
- $69.99 –
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SAS9305-16i LSI 9305-16i SATA SAS 12Gbs RAID Controller Host Bus Adapter PCIe 3.0 x8 IT-Mode 05-25703-00 HBA (9305-16I)
- Model #: 69089112138
- $125.19 –
- More options from $96.19 - $272.00
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- Model #: X8DHT-N232-dell-new
- $55.89 –
- More options from $55.89 - $62.88
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MELLANOX MCX515A-CCAT CONNECTX-5 EN ADAP CARD 100GBE
- Model #: ME#MCX515ACCAT
- $337.69 –
- More options from $337.69 - $597.00
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- Brand: Intel
- Part Number: X710T4LBLK
- Speed: Data rate per port: 10GbE/5GbE/2.5GbE/1GbE/100Mb
- Connectors: 4 x RJ45
- Model #: X710T4LBLK
- $594.99 –
- More options from $589.75 - $701.94
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- $99.99 –
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- Part Number: Y5M7N
- Connectors: 1 x SFP+
- Parts: 30 Days
- Labor: 30 Days
- Model #: Y5M7N
- $35.70 –
- More options from $35.70 - $153.51
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- Connectors: 2 x QSFP28
- Model #: E810CQDA2
- $483.78 –
- More options from $435.99 - $669.75
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C&N Dual PCIe Gigabit Network Card 1000M PCI Express Ethernet Adapter with Intel 82576 Two Ports LAN NIC Card for Windows, Linux, and Freebsd Compatibility
- Brand: C&N
- Part Number: SAE-TXA094
- Speed: 1000 megabytes_per_second
- Interface: pci_express_3.0
- Model #: SAE-TXA094
- $32.99 –
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TRENDnet TEG-25GECTX PCIe 2.0 x1 2.5GBASE-T PCIe Network Adapter
- Brand: TRENDnet
- Standards: IEEE 802.3u IEEE 802.3ab IEEE 802.3bz 2.5GBASE-T IEEE 802.1Q
- Connectors: 1 x RJ-45 Ethernet port
- Interface: PCIe 2.0 x1
- Model #: TEG-25GECTX
- $34.10 –
- More options from $34.10 - $50.98
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StarTech US1GC30B USB-C to Gigabit Ethernet Adapter - Black - Thunderbolt 3 Port Compatible - USB Type C Network Adapter
- Standards: IEEE 802.3, 802.3u and 802.3ab
- Connectors: Connector Type (s): 1 - USB Type-C (24 pin) USB 3.0 Male External Ports: 1 - RJ-45 Female
- Temperature: Operating Temperature: 0 ~ 70 degree Celsius (32 ~ 158 degree Fahrenheit) Storage Temperature: -10 ~ 80 degree Celsius (14 ~ 176 degree Fahrenheit)
- Humidity: 5% ~ 90% RH
- Model #: US1GC30B
- $39.99
- $36.99 –
- Save: 7%
- More options from $36.99 - $41.66
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StarTech.com 1 Port 2.5Gbps PoE Network Card, PCIe Ethernet Card w/RJ45, 30W 802.3at PoE NIC for Desktops/Servers ST1000PEXPSE
- Part Number: ST1000PEXPSE
- Standards: IEEE802.3at Power over Ethernet (25 W) IEEE802.3af Power over Ethernet (15 W) IEEE 802.3bz (2.5GBASE-T) IEEE 802.3ab (1000BASE-T ) IEEE 802.3u (100BASE-TX ) IEEE 802.3i (10BASE-T) IEEE P802.3az Energy Efficient Ethernet (EEE) IEEE802.1Q (VLAN tagging) Wake-on-LAN (WOL) PCI Express Version 2.1
- Connectors: 1 x RJ45
- Wake On LAN: Wake-on-LAN (WOL)
- Model #: ST1000PEXPSE
- $112.99
- $105.99 –
- Save: 6%
- More options from $105.99 - $129.83
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- Connectors: 4 x SFP+
- Weight: 0.4
- Model #: X710DA4FHBLK
- $460.41
- $363.99 –
- Save: 20%
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Silicom Lisbon ACC100 FEC Accelerator PCIe x16 Gen 3 4G 5G Turbo LDPC Encoding Intel eASIC Nextreme-3S Ideal for Xeon Servers 03X3K5 3X3K5 P3IMB-M-P2
- Model #: 03X3K5 3X3K5
- $100.00 –
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Hynix HMA82GU6CJR8N-VK Memory 16GB DDR4 2666MHz 2RX8 UDIMM - MEM-DR416L-HL01-UN26
- Model #: WDN-Hynix-HMA82GU6CJR8N-VK
- $106.69 –
- More options from $106.69 - $114.38
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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 #: 553-327826000331651
- $68.65 –
- More options from $68.65 - $104.33
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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:
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 RJ45Mc
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)