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RJ45 Network Cards

All Network Cards

53 RJ45 network cards from StarTech.com, Fentency, UGREEN and more. Most cost $27 to $628, and half cost less than $69.

Intel

PCIe, RJ45, Intel

+Uses a PCIe interface for desktop installation
+Built on an Intel chip
+Provides an RJ45 port for copper Ethernet cabling
$149.99
as of 11/04/2026 03:07 PST - Details
Intel

RJ45, Intel

+Intel chipset used in this network adapter
+Uses an RJ-45 port for standard Ethernet cabling
−Specifications list only the chipset and port type
$489.57
as of 11/04/2026 06:05 PST - Details
StarTech.comSpec score 7.4

2.5 Speed, 1 Ports, PCIe, RJ45

+Single RJ45 port supports 2.5GbE connections
+Installs in a PCIe slot for desktop connectivity
+Uses an Intel network chip
$77.34-6%List: $81.99
as of 11/04/2026 03:08 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
RedluxSpec score 8.8

10 Speed, 1 Ports, PCIe, RJ45

+10 Gbps speed, faster than standard gigabit Ethernet
+Intel chip listed for the network controller
+Single RJ45 port for standard Ethernet cabling
−Requires a free PCIe slot in the computer
$39.99
as of 11/04/2026 03:07 PST - Details
LpxlqklypSpec score 8.5

10 Speed, 4 Ports, RJ45, Intel

+Four RJ45 ports for four 10 Gbps connections
+Intel chip for a 10 Gbps network connection
+Uses standard RJ45 Ethernet cabling
−Short card form factor may not fit every case
$628.00
as of 11/04/2026 09:09 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
Akpzkyywn

2.5 Speed, PCIe, RJ45, Intel

+2.5Gbps wired Ethernet speed
+Intel I226 chip
+Connects to a PCIe slot
−Takes up a PCIe slot
$193.90
as of 11/04/2026 10:07 PST - Details
Fujitsu

10 Speed, PCIe, RJ45, Intel

+Four 10GBASE-T RJ45 ports for high-speed wired networking
+PCIe interface for installation in a desktop or server
+Intel chipset for network adapter compatibility
−Internal card requires opening the computer to install
$3,541.00
as of 11/04/2026 10:07 PST - Details
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
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
Intel

1 Speed, PCIe, RJ45, Intel

+Four RJ-45 copper ports for four connections
+PCI Express 2.0 x4 lane interface
+Copper RJ-45 ports suit standard Ethernet cabling
−Limited to 1 Gbps speed
$135.00
as of 11/04/2026 10:07 PST - Details
OLurkthu

2.5 Speed, M.2, RJ45, Intel

+2.5 Gbps speed for faster wired networking than gigabit
+Intel chip for wired connectivity
+RJ45 port for standard Ethernet cables
−Requires an M.2 B+M key slot on the motherboard
$51.89
as of 11/04/2026 03:07 PST - Details
OLurkthu

2.5 Speed, M.2, RJ45, Intel

+2.5 Gbps speed for faster wired networking
+Intel chip listed for the network controller
+M.2 B+M interface for compact installation
−Needs a free M.2 slot rather than a PCIe slot
$51.60
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
YrwygcgwySpec score 7.9

2.5 Speed, 4 Ports, PCIe, RJ45

+Four RJ45 ports for four wired connections
+2.5 Gbps speed per port
+PCIe interface for desktop expansion
−Requires an available PCIe slot
No price recorded yet.
SerounderSpec score 7.4

2.5 Speed, 1 Ports, M.2, RJ45

+Single 2.5 Gbps port for faster wired networking
+Uses an M.2 B M connection for a compact build
+Intel chip with RJ45 port for standard Ethernet cabling
−Requires a free M.2 slot on the motherboard
No price recorded yet.
Raxmolo

2.5 Speed, M.2, RJ45, Intel

+2.5 Gbps speed with multi-gig fallback to 1G and 100M
+Intel i226-V chip for 2.5GbE networking
+M.2 interface fits a spare M.2 slot
−Requires a free M.2 A+E slot
No price recorded yet.
GlotrendsSpec score 9.5

10 Speed, PCIe, RJ45, Intel

+10 gigabit RJ45 port for fast wired networking
+Intel X540-AT chip
+Supports SR-IOV virtualization
$39.99
as of 11/04/2026 03:07 PST - Details
LpxlqklypSpec score 8.5

10 Speed, 4 Ports, PCIe, RJ45

+Offers four 10 gigabit RJ45 ports on one card
+Uses an Intel X540-T4 chip for 10G networking
+Installs in a PCIe slot for desktop and server systems
$181.24
as of 11/04/2026 09:09 PST - Details

Compare specs

network cardSpeedInterfacePort typeSpec scorePrice
PCIeRJ45n/a$149.99
as of 11/04/2026 03:07 PST - Details
RJ45n/a$489.57
as of 11/04/2026 06:05 PST - Details
2.5PCIeRJ457.4$77.34
as of 11/04/2026 03:08 PST - Details
10PCIeRJ459.0$55.99
as of 11/04/2026 03:07 PST - Details
10PCIeRJ458.8$39.99
as of 11/04/2026 03:07 PST - Details
10RJ458.5$628.00
as of 11/04/2026 09:09 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
2.5PCIeRJ45n/a$193.90
as of 11/04/2026 10:07 PST - Details
10PCIeRJ45n/a$3,541.00
as of 11/04/2026 10:07 PST - Details

Before you buy

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