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Network Cards under $400

All Network Cards

6 network cards under $400. Most cost $359 to $399, and half cost less than $376.

All filtersFilters (1)×
Ports: 2  ×Clear all
BrandQNAP3Synology1
Speed104252
Ports26441361
InterfacePCIe3USB1
Port typeRJ452SFP281
ControllerIntel3
Clear allShow 6 Network Cards
Ports: 2  ×6 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
QNAPSpec score 7.5

25 Speed, 2 Ports, PCIe, Intel

+25 Gbps speed per port for high-bandwidth networks
+Two ports for redundant or parallel connections
+Intel chip with FEC for reliable data transfer
−Requires a PCIe x8 slot
$399.00
as of 11/04/2026 03:07 PST - Details
SynologySpec score 7.5

25 Speed, 2 Ports, PCIe, SFP28

+25 speed: only 3 of 20 here have a higher speed
$344.99
as of 11/04/2026 03:08 PST - Details
QNAPSpec score 8.2

10 Speed, 2 Ports, PCIe, Intel

+Two 10 Gbps ports for high-speed wired connections
+Intel chip with SR-IOV support
+Low-profile form factor fits compact builds
−Uses a PCIe x4 interface
$359.00
as of 11/04/2026 03:07 PST - Details
GenericSpec score 7.4

10 Speed, 2 Ports, RJ45, Intel

+Two 10Gbit RJ45 ports
+Intel X710 controller
+RJ45 ports work with standard Ethernet cables
$399.00
as of 11/04/2026 06:05 PST - Details
QNAPSpec score 7.4

10 Speed, 2 Ports, USB, RJ45

+Two RJ45 ports for 10 Gbps wired connections
+Connects over USB 4 Type-C interface
+Compatible with Thunderbolt 3 and Thunderbolt 4 connections
$378.11
as of 11/04/2026 11:06 PST - Details
GenericSpec score 7.4

10 Speed, 2 Ports

+Two ports provide 10 Gigabit Ethernet connectivity
+Supports high-speed 10 Gbps networking for demanding transfers
$374.51
as of 11/04/2026 06:05 PST - Details

Compare specs

network cardSpeedPortsSpec scorePrice
2527.5$399.00
as of 11/04/2026 03:07 PST - Details
2527.5$344.99
as of 11/04/2026 03:08 PST - Details
1028.2$359.00
as of 11/04/2026 03:07 PST - Details
1027.4$399.00
as of 11/04/2026 06:05 PST - Details
1027.4$378.11
as of 11/04/2026 11:06 PST - Details
1027.4$374.51
as of 11/04/2026 06:05 PST - Details

Before you buy

Other price ranges

Network Cables1,382Wi-Fi Routers275Network Transceivers1,024Network Switches714Binoculars228Cameras2,556PC Cases264Chromebooks196CPU Coolers393Processors247Desktops1,531Docking Stations1,252

Popular filters

Network Cards under $100804Network Cards under $75762Network Cards under $50707Network Cards under $25546USB Network Cards473RJ45 Network Cards473PCIe Network Cards320Network Cards with Intel Controllers207

Related product types

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Spec scores, pros and cons, and prices are explained in the How it works section of the About page.