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RJ45 Network Cards

All Network Cards

473 RJ45 network cards from StarTech.com, Fentency, UGREEN and more. Most cost $6 to $109, and half cost less than $17.

Top brands: StarTech.com (10)UGREEN (9)Renkforce (8)BrosTrend (6)TP-Link (5)Wisoqu (4)

Velatemor

USB, RJ45

+Connects a wired LAN network to a PC through USB
+Uses an RJ45 port for standard Ethernet cables
+Designed for a desktop PC setup
−Requires a free USB port on the computer
$8.29
as of 11/04/2026 11:07 PST - Details
Wisoqu

0.1 Speed, USB, RJ45

+Adds a wired RJ45 Ethernet connection through USB
+Uses a USB A connector for laptop compatibility
+Provides a wired connection for stable transmission
−Limited to 0.1Gbps wired speed
$6.71
as of 11/04/2026 06:05 PST - Details
Ueego

10 Speed, USB, RJ45, Realtek

+10 Gbps speed for fast wired network transfers
+USB-C connection for laptops with USB-C ports
+RJ45 port for standard Ethernet cables
−Relies on a USB bus rather than a built-in network port
$86.99
as of 11/04/2026 03:09 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
Yoidesu

5 Speed, USB, RJ45

+5Gbps USB C connection speed
+RJ45 Ethernet port for wired networking
+Aluminum alloy body for heat dissipation
−Requires a USB C port on the device
$24.32
as of 11/04/2026 21:07 PST - Details
Yoidesu

1 Speed, USB, RJ45

+1000Mbps Gigabit RJ45 Ethernet connection
+USB C female connector for modern laptops
+Aluminum alloy body
−Requires a USB C port on the device
$12.37
as of 11/04/2026 21:07 PST - Details
Yuehisy

1 Speed, USB, RJ45

+1000Mbps Gigabit RJ45 Ethernet connection
+Type C connector for modern devices
+Plug and play setup
−Requires a USB C port on the device
$9.07
as of 11/04/2026 21:07 PST - Details
Yunir

0.1 Speed, USB, RJ45

+Connects through a USB port
+RJ45 Ethernet port for wired networking
+Supports half and full duplex operation
−Limited to 10 and 100 Mbps speeds
−Not a Gigabit adapter
$3.25
as of 11/04/2026 11:06 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.
RaxmoloSpec score 7.8

1 Speed, 4 Ports, USB, RJ45

+Four LAN ports for multiple wired connections
+Gigabit speed over USB 3.0
+USB interface connects without opening the computer
−Shares one USB connection across four ports
No price recorded yet.
H!Fiber.comSpec score 7.4

2.5 Speed, 1 Ports, PCIe, RJ45

+2.5 Gbps speed, faster than standard gigabit
+Realtek RTL8125 chip
+Low-profile bracket for compact PCs
−Single port limits to one network connection
No price recorded yet.
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.
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.
5sssallefaa

1 Speed, USB, RJ45

+Splits one USB port into three network connections
+Connects over USB 3.0
+RJ45 port for wired Ethernet
−Gigabit speed, slower than multi-gigabit cards
No price recorded yet.
Ywluuoo

0.1 Speed, USB, RJ45

+Aluminum body for a sturdy build
+USB-C connection for modern laptops
+RJ45 port for standard Ethernet cables
−Maximum speed is only 100Mbps
No price recorded yet.
CleverThings

1 Speed, USB, RJ45

+Gigabit Ethernet over an RJ45 port
+Thunderbolt 3 and 4 compatible USB-C connection
+Connects to laptops without a built-in Ethernet port
−Limited to 1 Gbps speed
No price recorded yet.
Dcolp

0.1 Speed, USB, RJ45

+Connects to a network through an RJ45 Ethernet port
+Uses a USB connection, so no internal slot is needed
+Supports 100Mbps network speed
−Limited to 100Mbps, slower than gigabit Ethernet
No price recorded yet.
Iogiant

RJ45

+Converts a WiFi connection into a wired Ethernet RJ45 port
+AC1200 dual band wireless support
+Can turn off extender WiFi, for use as a plain adapter
−Speed depends on the wireless connection it receives
No price recorded yet.
Juinrinet

0.1 Speed, USB, RJ45

+Uses an RJ45 Ethernet port
+Connects through a USB-C interface
+Works without driver installation
−Limited to 100 Mbps network speed
No price recorded yet.
Lazyfun

USB, RJ45

+Two adapters included in one pack
+USB connection works with laptops lacking Ethernet ports
+RJ45 port connects directly to standard network cables
−USB bus limits throughput compared with built-in network cards
No price recorded yet.
Lenovo

USB, RJ45

+USB 3.0 bus for wired network access without a built-in port
+RJ45 port connects to standard Ethernet cables
+Made for compatible Lenovo models
−Works only with compatible Lenovo models
No price recorded yet.
Wisoqu

0.1 Speed, USB, RJ45

+RJ45 Ethernet port via USB connection
+Auto-switching 10/100Mbps speeds
+USB 3.0 compatible
−Limited to 10/100Mbps speeds
No price recorded yet.
OLurkthu

10 Speed, M.2, RJ45, Marvell (Aquantia)

+10 Gbps speed for high-bandwidth wired networking
+Supports 5 and 2.5 Gbps speeds as well
+RJ45 port for standard Ethernet cables
−Requires an M.2 B+M key slot on the motherboard
No price recorded yet.
Promise Technology

10 Speed, Thunderbolt, RJ45

+Thunderbolt connection for a high-speed link to a computer
+RJ45 port for standard Ethernet cabling
+10 Gbps speed for fast wired network transfers
−Requires a computer with a Thunderbolt port
No current price. Check it at the store.
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.
Rudiwro

2.5 Speed, RJ45

+Fits an A+E slot for internal installation
+Supports up to 2.5 Gbps Ethernet
+Bracket-mounted RJ45 port keeps the port accessible
−Requires an available A+E slot to install
No price recorded yet.

Compare specs

network cardSpeedInterfacePort typeSpec scorePrice
USBRJ45n/a$8.29
as of 11/04/2026 11:07 PST - Details
10PCIeRJ45n/a$69.99
as of 11/04/2026 03:08 PST - Details
2.5PCIeRJ45n/a$19.99
as of 11/04/2026 03:08 PST - Details
0.1USBRJ45n/a$6.71
as of 11/04/2026 06:05 PST - Details
10USBRJ45n/a$86.99
as of 11/04/2026 03:09 PST - Details
10PCIeRJ45n/a$399.32
as of 11/04/2026 03:09 PST - Details
5USBRJ45n/a$24.32
as of 11/04/2026 21:07 PST - Details
1USBRJ45n/a$12.37
as of 11/04/2026 21:07 PST - Details
1USBRJ45n/a$9.07
as of 11/04/2026 21:07 PST - Details
0.1USBRJ45n/a$3.25
as of 11/04/2026 11:06 PST - Details

Before you buy

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