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Network Cards under $400

All Network Cards

11 network cards under $400. Most cost $339 to $399, and half cost less than $375.

All filtersFilters (1)×
Speed: 10  ×Clear all
BrandQNAP2Chelsio1Odlnmoiox1Sonnet1Yidaochu1
Speed10112541110012.51401501
Ports2442
InterfacePCIe2USB1
Port typeRJ454
ControllerIntel5
Clear allShow 11 Network Cards
Speed: 10  ×11 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
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
Sonnet

10 Speed, RJ45

+10GbE RJ45 port for fast wired networking
+Two M.2 NVMe slots for storage expansion
+Dual USB-C ports included
−Uses a PCIe slot in the computer
$349.99
as of 11/04/2026 03:07 PST - Details
Odlnmoiox

10 Speed, PCIe, RJ45, Intel

+Two RJ45 ports for dual network connections
+Supports 10, 5, 2.5 and 1 Gb speeds
+PCIe 3.0 x4 interface fits smaller slots
−Speed of 10 Gbps is shown only as a maximum
$399.32
as of 11/04/2026 03:09 PST - Details
ChelsioSpec score 7.7

10 Speed, 4 Ports

+Four ports for multiple 10GbE connections
+10 Gbps speed for high-bandwidth networking
+Quad port design consolidates network connections in one card
$399.99
as of 11/04/2026 06:05 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
Bfqtxlavk

10 Speed, Intel

+Delivers 10 Gbps speed for high-throughput network links
+Built on an Intel chip for network connectivity
+Suited to server and workstation installations
$301.30
as of 11/04/2026 10:07 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
GenericSpec score 7.7

10 Speed, 4 Ports

+Four ports for multiple network connections
+10 Gbps speed for fast data transfer
+Designed for Supermicro AOC-STG-i4T systems
$355.00
as of 11/04/2026 03:07 PST - Details
Yrwygcgwy

10 Speed, Intel

+Intel chip for a 10 Gbps network connection
+Compatible with servers, desktops and workstations
+Sold with card and 2 models
$338.81
as of 11/04/2026 10:07 PST - Details
Yidaochu

10 Speed

+Supports 10 Gbps network speed for fast data transfer
+Built around the USB4 standard for high-bandwidth connections
−Requires a USB4-capable port on the host device
$388.66
as of 11/04/2026 06:05 PST - Details

Compare specs

network cardSpeedPortsSpec scorePrice
1028.2$359.00
as of 11/04/2026 03:07 PST - Details
10n/a$349.99
as of 11/04/2026 03:07 PST - Details
10n/a$399.32
as of 11/04/2026 03:09 PST - Details
1047.7$399.99
as of 11/04/2026 06:05 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
10n/a$301.30
as of 11/04/2026 10:07 PST - Details
1027.4$374.51
as of 11/04/2026 06:05 PST - Details
1047.7$355.00
as of 11/04/2026 03:07 PST - Details
10n/a$338.81
as of 11/04/2026 10:07 PST - Details

Before you buy

Other price ranges

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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

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