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RJ45 Network Cards

All Network Cards

35 RJ45 network cards from StarTech.com, Fentency, UGREEN and more. Most cost $24 to $244, and half cost less than $56.

TRENDnetSpec score 7.4

1 Speed, 2 Ports, USB, RJ45

+Two gigabit RJ45 ports from one connection
+USB Type-C power input for the splitter
+Connects through a USB interface
−Splits one connection, so both ports share its bandwidth
$14.99-25%List: $19.99
as of 11/04/2026 02:10 PST - Details
StarTech.comSpec score 8.2

10 Speed, 2 Ports, PCIe, RJ45

+Two ports for two separate 10 Gbps Ethernet connections
+10 Gbps speed, well above standard gigabit Ethernet
+PCIe x4 interface for desktop motherboards
−Uses a PCIe x4 slot, which many boards lack
$216.36
as of 11/04/2026 03:08 PST - Details
SynologySpec score 8.2

10 Speed, 2 Ports, PCIe, RJ45

+Two RJ45 ports for 10 Gbps Ethernet connections
+PCIe interface for desktop and server expansion slots
+Model E10G30-T2 fits Synology network storage setups
$244.99
as of 11/04/2026 03:08 PST - Details
SynologySpec score 8.2

10 Speed, 2 Ports, RJ45

+Two 10GbE ports for faster wired network speeds
+RJ-45 ports work with standard Ethernet cables
+Mini form factor suits compact upgrade modules
$109.99-23%List: $143.54
as of 11/04/2026 10:08 PST - Details
LinksTekSpec score 9.0

10 Speed, 2 Ports, PCIe, RJ45

+Two 10GbE RJ45 ports for high-speed wired networking
+Intel X540 chipset for 10Gb/s Ethernet
+PCIe x8 interface for high bandwidth
−Requires a PCIe x8 slot
$55.99
as of 11/04/2026 03:07 PST - Details
AkpzkyywnSpec score 7.6

2.5 Speed, 2 Ports, PCIe, RJ45

+Two RJ45 ports for dual wired connections
+2.5Gbps speed per port
+Connects to a PCIe slot
−Takes up a PCIe slot
$116.07
as of 11/04/2026 10:07 PST - Details
10GtekSpec score 7.4

1 Speed, 2 Ports, PCIe, RJ45

+Two 1 Gbps RJ45 ports for dual connections
+Intel I350-AM2 controller
+Low-profile bracket option for small cases
−Only 1 Gbps speed per port
$35.99
as of 11/04/2026 03:06 PST - Details
OLurkthuSpec score 7.4

1 Speed, 2 Ports, M.2, RJ45

+Two RJ45 ports for wired connections
+Gigabit speed for standard wired networking
+M.2 B+M card format
−Requires an M.2 slot
$44.65
as of 11/04/2026 03:08 PST - Details
YmikoSpec score 7.4

0.1 Speed, 2 Ports, USB, RJ45

+Two ports for network connectivity
+USB C to RJ45 connection for laptops
+Dual port connectivity for added flexibility
−Rated at 0.1 Gbps, slower than gigabit adapters
$14.25
as of 11/04/2026 11:07 PST - Details
LanbergSpec score 7.4

0.1 Speed, 2 Ports, RJ45

+Splits one RJ45 connection into two RJ45 ports
+Supports Fast Ethernet speeds of 0.1 Gbps
+Grey T-mount design for neat installation
−Fast Ethernet speed is slower than Gigabit options
No price recorded yet.
FebSmartSpec score 9.0

10 Speed, 2 Ports, PCIe, RJ45

+Two 10 Gbps RJ45 ports
+Uses an x8 PCIe interface for high bandwidth
+Intel X540-AT2 Ethernet controller
−Requires a free x8 PCIe slot
$55.99
as of 11/04/2026 03:07 PST - Details
GigaPlusSpec score 8.2

10 Speed, 2 Ports, PCIe, RJ45

+Two 10 Gbps RJ45 ports on one card
+Intel X540 controller
+Low profile design fits small cases
−Requires a PCIe x8 slot
$59.99
as of 11/04/2026 03:07 PST - Details
10GtekSpec score 8.2

10 Speed, 2 Ports, PCIe, RJ45

+Two 10 Gb RJ45 ports for dual connections
+Intel X540 controller
+Low-profile bracket option for small cases
−Uses a full x8 PCIe slot
$49.99
as of 11/04/2026 03:06 PST - Details
H!Fiber.comSpec score 8.2

10 Speed, 2 Ports, PCIe, RJ45

+10 Gbps speed for high-bandwidth network tasks
+Dual RJ45 ports for two network connections
+Intel X540-BT2 chip for a 10Gb copper network card
−Requires an available x8 PCIe slot
$44.99
as of 11/04/2026 03:07 PST - Details
GenericSpec score 8.2

10 Speed, 2 Ports, PCIe, RJ45

+10 Gbps speed for fast network throughput
+Two RJ45 ports for wired connections
+PCIe interface for server and desktop slots
−Fit is listed for HP systems
$35.60
as of 11/04/2026 03:08 PST - Details
LpxlqklypSpec score 8.2

10 Speed, 2 Ports, PCIe, RJ45

+Two RJ45 ports for dual wired connections
+Intel chipset for 10 Gbps Ethernet
+Uses an x8 PCIe slot for bandwidth
−Uses a PCIe x8 slot
$119.44
as of 11/04/2026 09:09 PST - Details
XzsnetSpec score 8.2

10 Speed, 2 Ports, PCIe, RJ45

+10 Gbps speed, ten times standard gigabit Ethernet
+Two RJ45 ports for dual connections
+Intel X540 chip
−Requires a PCIe x8 slot
$49.99
as of 11/04/2026 03:08 PST - Details
YiBaoTongSpec score 8.2

10 Speed, 2 Ports, PCIe, RJ45

+10 Gbps speed over RJ45 ports
+Two RJ45 ports for dual network connections
+PCIe x4 interface for desktop expansion slots
−Requires a PCIe x4 slot
$68.88
as of 11/04/2026 03:08 PST - Details
H!Fiber.comSpec score 7.4

1 Speed, 2 Ports, PCIe, RJ45

+Two RJ45 ports provide two network connections from one card
+Intel 82576 chip is a well-known network controller
+Low-profile design fits compact computer cases
−Low-profile design may not suit full-height slots without a bracket
$26.99
as of 11/04/2026 10:06 PST - Details
KnjcsvhghSpec score 7.4

1 Speed, 2 Ports, PCIe, RJ45

+Dual Gigabit RJ45 ports for wired network connections
+Uses Intel I350AM2 chip
+Fits PCIe x1 slots
−Supports PoE, which requires PoE-compatible equipment
$214.47
as of 11/04/2026 09:09 PST - Details
VunLinkSpec score 8.2

10 Speed, 2 Ports, PCIe, RJ45

+Dual RJ45 ports for two 10GBase-T copper connections
+Low-profile design fits small form factor and compact cases
+Intel X540-T2 controller for 10 Gbps copper networking
$69.98
as of 11/04/2026 03:07 PST - Details
LemspumSpec score 8.2

10 Speed, 2 Ports, PCIe, RJ45

+Dual RJ45 ports for two 10 Gbps copper connections
+Low-profile design fits small form factor and compact cases
+Intel X540 controller for 10 Gbps networking
$42.99
as of 11/04/2026 03:06 PST - Details
Hewlett Packard EnterpriseSpec score 8.2

10 Speed, 2 Ports, RJ45

+Two RJ45 ports provide 10 Gb Ethernet connections
+Rated at 10 Gb per second per port
+FlexibleLOM design fits compatible HPE server slots
$656.00
as of 11/04/2026 06:05 PST - Details
GenericSpec score 8.2

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 8.2

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
SxtaigoodSpec score 8.2

10 Speed, 2 Ports, PCIe, RJ45

+Two RJ45 ports for 10GbE connections
+Low profile design fits compact chassis
+Intel chip for networking
$79.88
as of 11/04/2026 03:08 PST - Details
AkpzkyywnSpec score 7.6

2.5 Speed, 2 Ports, PCIe, RJ45

+2.5 Gbps speed on each RJ45 port
+Two RJ45 ports for two connections
+PCI Express interface with Intel I226 chip
$210.14
as of 11/04/2026 10:07 PST - Details
JeirdusSpec score 7.4

1 Speed, 2 Ports, PCIe, RJ45

+Dual RJ45 ports for two wired connections
+Intel 82576 chipset
+Low-profile bracket for compact builds
$39.99
as of 11/04/2026 10:08 PST - Details

Compare specs

network cardSpeedInterfacePort typeSpec scorePrice
1USBRJ457.4$14.99
as of 11/04/2026 02:10 PST - Details
10PCIeRJ458.2$216.36
as of 11/04/2026 03:08 PST - Details
10PCIeRJ458.2$244.99
as of 11/04/2026 03:08 PST - Details
10RJ458.2$109.99
as of 11/04/2026 10:08 PST - Details
10PCIeRJ459.0$55.99
as of 11/04/2026 03:07 PST - Details
2.5PCIeRJ457.6$116.07
as of 11/04/2026 10:07 PST - Details
1PCIeRJ457.4$35.99
as of 11/04/2026 03:06 PST - Details
1M.2RJ457.4$44.65
as of 11/04/2026 03:08 PST - Details
0.1USBRJ457.4$14.25
as of 11/04/2026 11:07 PST - Details
0.1RJ457.4No current price

Before you buy

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