Your Browsing History
Featured Brands
Quick View
Intel® EXPI9301CT Comparable 10/100/1000Mbs Single RJ-45 Port 100m PCIe 2.0 x4 Network Interface Card
- Standards: IEEE 802.3
- Connectors: RJ-45
- Dimensions: 5.2 in. x 0.9 in. x 4.7 in.
- Weight: 9.60 oz
- Model #: EXPI9301CT-AO
- $29.99 –
- Free Shipping
Quick View
- Model #: E810CQDA2OCPV3
- $507.64 –
- More options from $466.99 - $973.20
- Free Shipping
Quick View
BUCIER PA17 PCIe 5.0 X16 Riser Adapter Card, Straight and Low-Profile for 1U/2U Server Installation
- Brand: BUCIER
- Part Number: PA17-180D
- Standards: PCIe
- Connectors: PCIe
- Model #: 8567457991
- $34.99 –
- Free Shipping
Quick View
- Model #: X8DHT-N232-dell-new
- $55.89 –
- More options from $55.89 - $62.88
- Free Shipping
Quick View
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 09/29
- Model #: PCET25G-UT-RT
- $15.99 –
- Free Shipping
Quick View
- $146.55 –
- More options from $146.55
- Free Shipping
Quick View
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
- Class: 10G, PCIE
- Model #: SY-TDB24097
- $79.99 –
- Free Shipping
Quick View
MELLANOX MCX515A-CCAT CONNECTX-5 EN ADAP CARD 100GBE
- Model #: ME#MCX515ACCAT
- $299.00 –
- More options from $299.00 - $597.00
- Free Shipping
Quick View
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 –
- Free Shipping
Quick View
Refurbished V000270880 Toshiba Satellite C855D Mini Wireless Card
- Model #: V000270880
- $14.99 –
- Free Shipping
Quick View
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 –
- Free Shipping
Quick View
Intel Gigabit ET Dual Port Server Adapter, OEM Pack (E1G42ETBLK)
- Connectors: 2 x RJ45
- Weight: 0.25
- Package Contents: Gigabit ET Dual Port Server Adapter Informational CD Bracket
- Parts: 30 Days Warranty
- Model #: E1G42ETBLK
- $54.90 –
- More options from $54.90 - $63.89
- Free Shipping
Quick View
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
- $61.23 –
- Free Shipping
Quick View
Refurbished IBM 49Y7961 Intel X520-DA2 Dual Port 10GbE SFP+ Network Adapter Card
- Model #: 49Y7961, 049Y7961, CN-049Y7961
- $75.00 –
- Free Shipping
Quick View
Intel EXPI9400PT 10/100/1000Mbps PCI-Express Gigabit Copper Connection for Servers
- Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab, IEEE802.3x
- Connectors: 1 x RJ45
- BUS: PCI Express 1.0a
- LEDs: 2 (1/port, link and speed) solid and blinking
- Model #: EXPI9400PT
- $39.17 –
Quick View
StarTech 1-Port 10Gbps PCIe Network Adapter Card, Network Card for PC/Server, PCIe Ethernet Card w/Jumbo Frame, NIC/LAN Interface Card
- Part Number: ST10GSPEXNB2
- Standards: IEEE 802.3an (10GBASE-T) IEEE 802.3bz (5GBASE-T) 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 P802.3az (EEE) IEEE 1588 (PTP) PCI Express Version 3.0
- Connectors: 1 x RJ45
- Dimensions: Height: 0.8" Width: 4.2"
- Model #: ST10GSPEXNB2
- $182.99
- $172.99 –
- Save: 5%
- More options from $172.99 - $196.26
- Free Shipping
Quick View
StarTech.com Mini PCI Express Gigabit Ethernet Network Adapter NIC Card
- Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab
- Connectors: 1 x RJ45
- LEDs: 1 - Activity 1 - Link
- Wake On LAN: Yes
- Model #: ST1000SMPEX
- $30.99 –
- Free Shipping
Quick View
TRENDnet TEG-10GECTX 10 Gigabit PCIe Network Adapter
- Brand: TRENDnet
- Standards: IEEE 802.3ab IEEE 802.3bz 2.5GBASE-T IEEE 802.3an 10GBASE-T IEEE 802.1Q IEEE 802.3ad
- Speed: 10Gbps
- Connectors: 1 x RJ45
- Model #: TEG-10GECTX (v3.0R)
- $80.00 –
- More options from $79.99 - $97.18
- Free Shipping
Quick View
StarTech.com PCI Express Gigabit Ethernet Fiber Network Card w/ Open SFP - PCIe SFP Network Card Adapter NIC
- Weight: 0.45
- Package Contents: 1 Port PCI Express Gigabit SFP Network Card 1 x Low Profile Bracket 1 x Driver CD 1 x Instruction Manual
- Parts: 2 Year
- Labor: 2 Year
- Model #: PEX1000SFP2
- $199.70 –
- More options from $195.99 - $213.40
Quick View
StarTech.com 4 Port Gigabit Power over Ethernet PCIe Network Card - PSE / PoE PCI Express NIC
- Weight: 0.8
- Package Contents: 4 Port Gigabit Power over Ethernet PCIe Network Card - PSE / PoE PCI Express NIC 1 x Driver CD 1 x Instruction Manual
- Model #: ST4000PEXPSE
- $323.99 –
- Free Shipping
Quick View
StarTech.com Gigabit Ethernet Card, PCI Express 2.1 x1 - Intel I210-IS
- Dimensions: Height: 0.6" Width: 2.6" Depth: 3.4"
- Weight: Weight (Approximate): 1.40 oz
- Model #: P011GINETWORKCARD
- $116.99 –
- More options from $116.99 - $140.45
- Free Shipping
Quick View
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
- $102.99 –
- Save: 8%
- More options from $102.99 - $132.87
- Free Shipping
Quick View
StarTech PEX867WAC22 PCI Express AC1200 Dual Band Wireless-AC Network Adapter - PCIe 802.11ac WiFi Card
- Wireless Data Rates: 1.17 Gbps
- Standards: IEEE 802.11ac
- Color: Black
- Features: Add high speed 802.11ac WiFi connectivity to a desktop PC through a PCI Express slot with dual band 2.4 / 5GHz frequencies and up to 867Mbps PCI Express AC1200 Dual Band Wireless-AC Network Adapter PCIe 802.11ac WiFi Card Wireless-AC Card - 802.11a/b/g/n/ac 2 Transmitter / 2 Receiver (2x2:2) antenna configuration
- Model #: PEX867WAC22
- $93.99 –
- Free Shipping
Quick View
StarTech.com USB 3.0 to Gigabit Ethernet NIC Network Adapter - 10/100/1000 Mbps
- Standards: IEEE802.3i, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3az
- Connectors: 1 x RJ-45 Female 1 x USB Type-A (9 pin) USB 3.0 Male
- LEDs: 1 x Activity (Yellow) 1 x Link (Green)
- Temperature: Operating Temperature: 0 ~ 50 degree Celsius (32 ~ 122 degree Fahrenheit) Storage Temperature: 0 ~ 70 degree Celsius (32 ~ 158 degree Fahrenheit)
- Model #: USB31000NDS
- $35.99 –
- Free Shipping
Quick View
StarTech.com USB-C to Ethernet Adapter with 3-Port USB 3.0 Hub and Power Delivery - USB-C GbE Network Adapter + USB Hub w/ 3 USB-A Ports
- Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab USB 3.0 - Backward compatible with USB 2.0 and 1.1 IEEE 802.3az Energy-Efficient Ethernet, IEEE 802.3x Flow Control, 802.1q VLAN Tagging, 802.1p Layer 2 Priority Encoding
- Connectors: 1 x RJ45
- Temperature: Operating Temperature: 0 ~ 45 degree Celsius (32 ~ 113 degree Fahrenheit) Storage Temperature: -10 ~ 70 degree Celsius (14 ~ 158 degree Fahrenheit)
- Humidity: 10~90% RH (Non-condensing)
- Model #: US1GC303APD
- $71.99
- $57.99 –
- Save: 19%
- More options from $57.99 - $65.97
- Free Shipping
Quick View
StarTech.com USB 3.0 to Gigabit Network Adapter with Built-In 2-Port USB Hub - Native Driver Support (Windows, Mac and Chrome OS)
- Standards: IEEE 802.3 10BASE-T, IEEE 802.3ab 1000BASE-T, IEEE 802.3u 100BASE-TX and IEEE 802.3X Full Duplex
- Connectors: 1 - USB 3.0 A (9 pin; SuperSpeed) Male 1 - RJ-45 Female 2 - USB 3.0 A (9 pin; SuperSpeed) Female
- Temperature: Operating Temperature:0 degree C to 70 degree C (32 degree F to 158 degree F) Storage Temperature: -10 degree C to 55 degree C (14 degree F to 131 degree F)
- Humidity: 40% ~ 50%
- Model #: USB31000S2H
- $52.99
- $47.99 –
- Save: 9%
- More options from $47.99 - $58.46
- Free Shipping
Quick View
StarTech.com PCI Express (PCIe) Gigabit Ethernet Multimode SC Fiber Network Card Adapter NIC - 550m
- Dimensions: Height: 4.6" Width: 0.7" Length: 4.7"
- Weight: Weight (Approximate): 2.30 oz
- Package Contents: 1 Port PCI Express Gigabit Fiber Network Card 1 x Low Profile Bracket 1 x Driver CD 1 x Instruction Manual
- Model #: PEX1000MMSC2
- $159.96 –
- More options from $156.99 - $243.25
Quick View
- Connectors: 4 x SFP+
- Weight: 0.4
- Model #: X710DA4FHBLK
- $461.48
- $363.98 –
- Save: 21%
- More options from $363.98 - $524.44
- Free Shipping
Quick View
StarTech.com 2-Port 2.5G NBASE-T PCIe Network Card, Intel® I225-V, Dual-Port Ethernet, Multi-Gigabit NIC
- Part Number: PR22GINETWORKCARD
- Package Contents: 2-Port 2.5GBase-T Ethernet Network Adapter Card - PCIe 2.0 x2 1 x Low Profile Bracket 1 x Quick-Start Guide
- Model #: PR22GINETWORKCARD
- $162.96
- $158.65 –
- More options from $150.99 - $170.56
Quick View
SYBA SI-PEX24042 4 Port Gigabit Ethernet PCI-e x1 Network Interface Card
- Wake On LAN: Yes
- Weight: 0.3
- Package Contents: 1 x PCI-Express Four Gigabit Ethernet controller card 1 x User Manual 1 x Driver CD 1 x Low Profile Bracket
- Parts: 1 Year
- Model #: SI-PEX24042
- $42.27
- $37.99 –
- Save: 10%
- More options from $37.99 - $61.38
- Free Shipping
Quick View
in 30 days
StarTech.com 10G Network Card, 2x 10G Open SFP+ Multimode LC Fiber Connector, Intel 82599 Chip- Weight: 0.39
- Package Contents: 2-Port 10G Fiber Network Card with Open SFP+ - PCIe, Intel Chip 1 x Low-profile bracket 1 x Quick install guide
- Parts: 2 Year
- Model #: PEX20000SFPI
- $390.99 –
- More options from $390.99 - $457.74
- Free Shipping
Quick View
StarTech US1GC30A USB-C to Gigabit Ethernet Adapter - Aluminum - Thunderbolt 3 Port Compatible - USB Type C Network Adapter
- Standards: IEEE 802.3, 802.3u and 802.3ab
- Connectors: 1 x RJ45
- Parts: Manufacturers Limited Warranty: 2 Year / Parts Only
- Model #: US1GC30A
- $39.99 –
- More options from $39.99 - $49.67
- Free Shipping
Quick View
StarTech.com Dual Port 40G QSFP+ Network Card - Intel XL710 Open QSFP+ Converged Adapter PCIe 40 Gigabit Fiber Ethernet Server 40GbE NIC
- Part Number: PEX40GQSFDPI
- Dimensions: Height: 0.8" Width: 4.8" Depth: 7.1"
- Weight: Weight (Approximate): 4.50 oz
- Model #: PEX40GQSFDPI
- $459.99 –
- More options from $459.99 - $661.63
- Free Shipping
Quick View
StarTech.com USB-C to Ethernet Gigabit Adapter - Thunderbolt 3 Compatible - USB Type C Network Adapter - USB C Ethernet Adapter
- Connectors: 1 x RJ45
- LEDs: 1 x 1 - 10/100 Link/Activity (Green) 1 x Gigabit Link/Activity (Amber)
- Temperature: 0°C ~ 50°C
- Humidity: 5% ~ 80% RH
- Model #: US1GC301AU
- $50.99 –
- More options from $50.99 - $56.85
- 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