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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)

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
Vicfluxion

2.5 Speed, USB, RJ45, Realtek

+Supports 2.5 Gbps wired connection speed
+Connects through a USB port to an RJ45 Ethernet cable
+Uses a Realtek chip
−Requires a free USB port on the computer
$15.99-20%List: $19.99
as of 11/04/2026 11:06 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
Giochem

1 Speed, USB, RJ45

+Gigabit 1 Gbps Ethernet speed
+Aluminum body for a portable build
+RJ45 port for standard wired network cables
−Uses a USB bus, not a built-in network port
$6.99-30%List: $9.99
as of 11/04/2026 06:05 PST - Details
Dacrown

1 Speed, USB, RJ45

+USB-C to RJ45 gigabit Ethernet connection
+1.5 foot cable length for close-range placement
+Compatible with Thunderbolt 4 and Thunderbolt 3 ports
−Short 1.5 foot cable limits placement distance
$9.99-22%Was: $12.79
as of 11/04/2026 11:07 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
TRENDnet

1 Speed, USB, RJ45

+USB 3.0 connection for wired Gigabit Ethernet
+Rated up to 1 Gbps Ethernet speed
+Standard RJ45 port for common network cables
$14.99-17%List: $17.99
as of 11/04/2026 03:07 PST - Details
Eqimaimai

1 Speed, USB, RJ45

+Provides 1 Gbps speed through an RJ45 port
+Connects to a USB A port on a computer
+Works with Windows, Mac OS and Linux systems
$16.80-16%List: $19.90
as of 11/04/2026 03:08 PST - Details
Uni

1 Speed, USB, RJ45

+Gigabit speed of 1 Gbps for fast wired networking
+Connects over USB, no internal installation needed
+Includes USB hub ports alongside the Ethernet port
−USB 3.0 hub ports share the adapter's bandwidth
$16.99-15%List: $19.99
as of 11/04/2026 10:05 PST - Details
Cable Matters

1 Speed, USB, RJ45

+Gigabit 1 Gbps wired network speed
+RJ45 port for standard Ethernet cables
+Connects through a USB C port
$12.74-15%Was: $14.99
as of 11/04/2026 10:06 PST - Details
Acer

1 Speed, USB, RJ45, Realtek

+Gigabit 1Gbps Ethernet speed
+RJ45 port for standard Ethernet cables
+Plug and play setup
$11.99-14%List: $13.99
as of 11/04/2026 11:05 PST - Details
F Fenvi

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

+Delivers 10Gbps speeds from an M.2 card
+Uses a Marvell Aquantia AQC113 chipset
+Compatible with 5G, 2.5G and 1G networks
$73.99-14%List: $85.99
as of 11/04/2026 03:07 PST - Details
QGeeM

1 Speed, RJ45

+Gigabit 1000 Mbps speed for wired networking
+RJ45 port accepts standard Ethernet cables
+Works with Thunderbolt 3, 4 and 5 ports
$12.99-13%List: $14.99
as of 11/04/2026 02:11 PST - Details
Conable

USB, RJ45

+Connects a computer to wired networks through an RJ45 port
+Uses a USB-C connection to link with the computer
+Black housing for a compact and simple design
−Only offers a single RJ45 Ethernet port
$14.99-12%List: $16.99
as of 11/04/2026 11:07 PST - Details
Ivshowco

1 Speed, RJ45

+USB-C connection for modern laptops
+RJ45 port for wired Ethernet
+Supports 1 Gbit/s Gigabit speed
$15.88-12%Was: $17.99
as of 11/04/2026 11:07 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
Acer

2.5 Speed, USB, RJ45, Realtek

+2.5Gbps Ethernet speed, faster than standard gigabit
+RJ45 port for standard Ethernet cables
+Aluminum alloy housing
$24.99-11%List: $27.99
as of 11/04/2026 11:07 PST - Details
Benfei

1 Speed, USB, RJ45

+Gigabit Ethernet speed of 1 Gbps
+Standard RJ45 port for wired network cables
+Includes two adapters in the pack
$16.99-11%Was: $18.99
as of 11/04/2026 10:06 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
Acer

2.5 Speed, USB, RJ45, Realtek

+2.5Gbps Ethernet speed, faster than standard gigabit
+RJ45 port for standard Ethernet cables
+Aluminum alloy housing
$25.99-7%List: $27.99
as of 11/04/2026 10:06 PST - Details
Walnew

1 Speed, USB, RJ45

+Supports 1 Gbps gigabit wired network speed
+Uses a standard RJ45 port for wired network cables
+Aluminum body for a metal housing
$12.99-7%List: $13.99
as of 11/04/2026 02:10 PST - Details
Zexmte

USB, RJ45

+Adds an RJ45 Ethernet port for wired networking
+Connects to Fire TV Stick through Micro USB
+Designed for Fire TV Stick network use
$12.99-7%Was: $13.99
as of 11/04/2026 11:05 PST - Details
HP

USB, RJ45

+Connects a USB-C port to a wired RJ45 Ethernet network
+Uses a USB-C connection for laptops with that port
+Adds a wired network connection without a built-in Ethernet port
−Wired connection only, no wireless networking support
$16.90-6%Was: $17.99
as of 11/04/2026 11:07 PST - Details
Slinya

1 Speed, USB, RJ45

+Gigabit speed of 1 Gbps over an RJ45 connection
+USB-C connection works with USB-C equipped devices
+Aluminum housing for a compact dongle design
−Requires a USB-C port on the host device
$16.99-6%List: $17.99
as of 11/04/2026 11:07 PST - Details
TeckNet

1 Speed, USB, RJ45

+Adds a Gigabit RJ45 Ethernet port through USB
+Includes 3 USB 3.0 ports for additional connections
+Rated at 1Gbps for wired network speed
−Depends on a USB connection rather than an internal bus
$15.99-6%List: $16.99
as of 11/04/2026 10:06 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
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

Compare specs

network cardSpeedInterfacePort typeSpec scorePrice
10RJ458.2$109.99
as of 11/04/2026 10:08 PST - Details
2.5USBRJ45n/a$15.99
as of 11/04/2026 11:06 PST - Details
5PCIeRJ45n/a$32.99
as of 11/04/2026 10:09 PST - Details
1USBRJ45n/a$6.99
as of 11/04/2026 06:05 PST - Details
1USBRJ45n/a$9.99
as of 11/04/2026 11:07 PST - Details
10PCIeRJ45n/a$49.99
as of 11/04/2026 03:07 PST - Details
1USBRJ45n/a$14.99
as of 11/04/2026 03:07 PST - Details
1USBRJ45n/a$16.80
as of 11/04/2026 03:08 PST - Details
1USBRJ45n/a$16.99
as of 11/04/2026 10:05 PST - Details
1USBRJ45n/a$12.74
as of 11/04/2026 10:06 PST - Details

Before you buy

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