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RJ45 Network Cards

All Network Cards

111 RJ45 network cards from StarTech.com, Fentency, UGREEN and more. Most cost $16 to $216, and half cost less than $50.

Top brands: StarTech.com (4)

StarTech.comSpec score 8.0

10 Speed, 1 Ports, PCIe, RJ45

+10 Gbps speed over RJ45 copper
+Low profile bracket fits small form factor cases
+Jumbo frame support for larger packets
−Only two PCIe lanes limit peak throughput
$172.99-6%List: $183.46
as of 11/04/2026 03:08 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
StarTech.com

1 Ports, PCIe, RJ45, Realtek

+Realtek RTL8111H chipset
+Low profile bracket fits small form factor cases
+RJ45 copper connection
−Single port limits simultaneous connections
No current price. Check it at the store.
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
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
UGREEN

5 Speed, PCIe, RJ45, Realtek

+5 Gbps wired speed for fast local transfers
+PCIe x1 slot works with common motherboards
+RJ45 port connects to standard Ethernet cables
$32.99-18%List: $39.99
as of 11/04/2026 10:09 PST - Details
Rielincard

2.5 Speed, PCIe, RJ45, Realtek

+2.5Gbps wired Ethernet speed
+Realtek RTL8125B chip
+Low-profile bracket for small cases
$16.01-11%Was: $17.99
as of 11/04/2026 10:09 PST - Details
NicgigaSpec score 8.3

5 Speed, 5 Ports, PCIe, RJ45

+5 ports: the most ports of the 79 here
+5 speed: 262 of the 361 here have a lower speed
$33.29-10%Was: $36.99
as of 11/04/2026 03:07 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
Cudy

10 Speed, PCIe, RJ45

+Supports 10 Gbps Ethernet speed
+Low-profile design fits small cases
+Uses an RJ45 copper port
$49.99-17%Was: $59.99
as of 11/04/2026 03:07 PST - Details
GigaPlus

10 Speed, PCIe, RJ45, Marvell (Aquantia)

+RJ45 port for standard copper Ethernet cabling
+Supports 100, 1000, 2500 and 10000 Mbps speeds
+Low-profile design fits small form factor and compact cases
$63.74-6%Was: $67.49
as of 11/04/2026 03:06 PST - Details
Rekong

10 Speed, PCIe, RJ45, Marvell (Aquantia)

+10 Gbps speed, faster than standard gigabit Ethernet
+PCIe x4 interface listed for the connection
+Single RJ45 port for standard Ethernet cabling
−Requires a free PCIe slot in the computer
$49.39-5%Was: $51.99
as of 11/04/2026 03:08 PST - Details
ULANSeN

10 Speed, PCIe, RJ45, Realtek

+10 Gbps speed with 5G, 2.5G, 1G and 100Mbps fallback
+Uses a single PCIe x1 lane
+Low-profile bracket option for small cases
$46.54-5%Was: $48.99
as of 11/04/2026 03:07 PST - Details
ULANSeN

2.5 Speed, PCIe, RJ45, Realtek

+Supports 2.5 Gbps wired connection speed
+Also falls back to 1000 and 100 Mbps
+Installs in a PCI Express x1 slot
$18.99-5%Was: $19.99
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
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
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
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
NicgigaSpec score 8.0

10 Speed, 1 Ports, PCIe, RJ45

+10 Gbps Ethernet speed over RJ45 port
+Uses a single PCIe x1 slot
+Marvell AQC113 controller
−Single port limits to one network connection
$69.99
as of 11/04/2026 03:06 PST - Details

Compare specs

network cardSpeedInterfacePort typeSpec scorePrice
10PCIeRJ45n/a$60.00
as of 11/04/2026 03:08 PST - Details
2.5PCIeRJ45n/a$27.99
as of 11/04/2026 10:07 PST - Details
10PCIeRJ458.0$172.99
as of 11/04/2026 03:08 PST - Details
10PCIeRJ458.2$216.36
as of 11/04/2026 03:08 PST - Details
PCIeRJ45n/aNo current price
10PCIeRJ458.2$244.99
as of 11/04/2026 03:08 PST - Details
PCIeRJ45n/a$149.99
as of 11/04/2026 03:07 PST - Details
1PCIeRJ45n/a$12.99
as of 11/04/2026 10:07 PST - Details
5PCIeRJ45n/a$32.99
as of 11/04/2026 10:09 PST - Details
2.5PCIeRJ45n/a$16.01
as of 11/04/2026 10:09 PST - Details

Before you buy

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