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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 $108, and half cost less than $17.

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

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
VogzoneSpec score 7.4

2.5 Speed, 1 Ports, PCIe, RJ45

+Single RJ45 port for 2.5GbE copper networking
+Backward compatible with 1GbE and 100MbE networks
+Low-profile form factor fits compact chassis
−Only one network port per card
$15.99
as of 11/04/2026 10:06 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
Ttongx

0.1 Speed, RJ45

+Connects a desktop to a wired network through USB 2.0
+Uses a standard RJ45 Ethernet port for wired connections
+Supports 10 and 100Mbps network speeds
−Limited to 100Mbps, far slower than gigabit connections
$8.49
as of 11/04/2026 03:07 PST - Details
Reland Sun

1 Speed, PCIe, RJ45

+Gigabit speed for faster-than-Fast Ethernet transfers
+PCI Express interface for desktop installation
+RJ45 port for standard Ethernet cables
−Limited to 1 Gbps, below 10 Gbps options
$6.00
as of 11/04/2026 10:07 PST - Details
Funomocya

USB, RJ45

+USB connection for devices without Ethernet ports
+RJ45 port for standard Ethernet cables
+Aluminium alloy housing
−Limited to 100 Mbps speed
$16.39
as of 11/04/2026 02:10 PST - Details
Akpzkyywn

10 Speed, PCIe, RJ45, Marvell (Aquantia)

+Uses an RJ45 port for standard copper Ethernet cabling
+PCIe x4 slot fits many motherboards with a 10G connection
+Marvell Aquantia AQC107 chip for 10 Gbps networking
−Requires a PCIe x4 slot or larger
$237.96
as of 11/04/2026 10:07 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
Binardat

2.5 Speed, PCIe, RJ45, Realtek

+2.5Gbps wired Ethernet speed
+Realtek RTL8125B chip
+Connects to a PCIe slot
−Takes up a PCIe slot
$16.99
as of 11/04/2026 03:06 PST - Details
Untering

2.5 Speed, USB, RJ45

+Supports 2.5Gbps speeds over an RJ45 Ethernet port
+Connects to a PC or laptop through a Type C port
+USB bus connection needs no internal PC slot
−Requires a free Type C port on the computer
$7.99
as of 11/04/2026 06:05 PST - Details
Esbeecables

0.1 Speed, USB, RJ45

+Provides an RJ45 Ethernet LAN port over USB Type C
+Includes a USB Type C charge port for a second device
+MFi certified design for Apple device compatibility
−Rated at 0.1 Gbps, slower than common gigabit adapters
$14.99
as of 11/04/2026 02:10 PST - Details
Generic

USB, RJ45

+Two adapters included in one pack
+USB connection for laptops without an Ethernet port
+RJ45 port for standard Ethernet cables
−Limited to 10 Mbps and 100 Mbps speeds
$5.99
as of 11/04/2026 11:06 PST - Details
Amzvenue

USB, RJ45

+Connects a wired Ethernet cable through a USB port
+Uses an RJ45 LAN connector for standard network cables
+Works with ADSL modems, routers, and PCs
−Limited to the speed of the USB connection and adapter
$4.59
as of 11/04/2026 02:10 PST - Details
Anrank

0.1 Speed, USB, RJ45

+Connects through a USB 2.0 port to an RJ45 LAN
+Supports 10/100 Mbps Fast Ethernet speeds
+Provides a wired network connection for computers without Ethernet
−Limited to 10/100 Mbps, slower than gigabit adapters
$5.99
as of 11/04/2026 11:06 PST - Details
Crehao

RJ45

+Apple MFi certified for iPhone use
+Uses an RJ45 Ethernet port for wired networking
+Connects to iPhone through a Lightning port
−Only works with devices that have a Lightning port
$13.99
as of 11/04/2026 02:11 PST - Details
Aumotop

USB, RJ45

+USB connection adds wired Ethernet to devices without a LAN port
+RJ45 port for standard Ethernet cables
+Compact design for portable use
−100 Mbps speed is slower than gigabit adapters
$9.59
as of 11/04/2026 11:07 PST - Details
Bloepum

0.1 Speed, USB, RJ45

+Connects through a USB interface
+Uses an RJ45 Ethernet port
+Driver-free setup for Ethernet connection
−Limited to 100 Mbps, below gigabit speeds
$6.99
as of 11/04/2026 03:07 PST - Details
Bloepum

0.1 Speed, USB, RJ45

+Connects through a USB interface
+Uses an RJ45 Ethernet port
+Driver-free setup for Ethernet connection
−Limited to 100 Mbps, below gigabit speeds
$4.99
as of 11/04/2026 02:10 PST - Details
BrosTrend

2.5 Speed, PCIe, RJ45, Realtek

+2.5 Gbps PCIe network card with RJ45 port
+Low-profile bracket included for compact cases
+Supports Windows 11, 10, 8.1, 8 and 7
−Requires a free PCIe slot inside the computer
$21.99
as of 11/04/2026 10:09 PST - Details
BrosTrend

2.5 Speed, PCIe, RJ45

+2.5 Gbps PCIe network card with RJ45 port
+Low-profile bracket included for compact cases
+Listed for Ubuntu, Mint and Kali Linux
−Requires a free PCIe slot inside the computer
$27.29
as of 11/04/2026 10:08 PST - Details
Bzizu

10 Speed, RJ45, Realtek

+10 Gbps RJ45 port for fast wired networking
+Realtek chip listed for the network controller
+Connects through a USB C port
−Speed depends on the USB port it is plugged into
$69.98
as of 11/04/2026 03:07 PST - Details
Cable Matters

0.1 Speed, USB, RJ45

+Two adapters included in the pack
+Plug and play USB connection to an RJ45 port
+Supports 10/100 Mbps wired networking
−Limited to 100 Mbps, slow for large file transfers
$18.99
as of 11/04/2026 03:06 PST - Details
Cable Matters

1 Speed, USB, RJ45

+Two adapters included in the pack
+Plug and play USB connection to an RJ45 port
+Gigabit 1 Gbps wired network speed
−Uses USB connection rather than a built-in port
$25.99
as of 11/04/2026 10:05 PST - Details
Cable Matters

2.5 Speed, USB, RJ45, Realtek

+USB connection works with computers lacking built-in Ethernet
+RJ45 port for standard Ethernet cables
+Realtek chip listed for driver compatibility
−Requires a 2.5 Gbps capable network to reach full speed
$24.99
as of 11/04/2026 03:07 PST - Details
CableCreation

1 Speed, USB, RJ45, Realtek

+10 foot cable gives extra placement flexibility
+USB connection works with computers lacking built-in Ethernet
+Realtek chip listed for driver compatibility
−Cable adds bulk compared with compact dongle adapters
$21.99
as of 11/04/2026 11:06 PST - Details
Cawwgt

RJ45, Realtek

+USB 2.0 connection works with older computers
+RJ45 port for standard Ethernet cables
+Realtek RTL8152B chip listed
−USB 2.0 interface limits throughput below gigabit speeds
$4.89
as of 11/04/2026 02:10 PST - Details
Cudy

2.5 Speed, USB, RJ45, Realtek

+2.5 Gbps speed for faster wired transfers
+Uses an RJ45 port for standard Ethernet cables
+Plug and play USB 3.0 connection
−Requires a free USB port on the computer
$17.99
as of 11/04/2026 03:07 PST - Details
Derapid

10 Speed, PCIe, RJ45, Marvell (Aquantia)

+10 Gbps speed for fast wired networking
+PCIe x4 interface for desktop and server slots
+Low-profile design fits compact cases
−Requires an available PCIe x4 slot
$53.99
as of 11/04/2026 03:07 PST - Details

Compare specs

network cardSpeedInterfacePort typeSpec scorePrice
1M.2RJ457.4$44.65
as of 11/04/2026 03:08 PST - Details
2.5PCIeRJ457.4$15.99
as of 11/04/2026 10:06 PST - Details
0.1USBRJ457.4$14.25
as of 11/04/2026 11:07 PST - Details
0.1RJ45n/a$8.49
as of 11/04/2026 03:07 PST - Details
1PCIeRJ45n/a$6.00
as of 11/04/2026 10:07 PST - Details
USBRJ45n/a$16.39
as of 11/04/2026 02:10 PST - Details
10PCIeRJ45n/a$237.96
as of 11/04/2026 10:07 PST - Details
2.5PCIeRJ45n/a$193.90
as of 11/04/2026 10:07 PST - Details
2.5PCIeRJ45n/a$16.99
as of 11/04/2026 03:06 PST - Details
2.5USBRJ45n/a$7.99
as of 11/04/2026 06:05 PST - Details

Before you buy

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