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Network Cards with Realtek Controllers

All Network Cards

44 network cards with Realtek controllers from StarTech.com, BrosTrend, Wavlink and more. Most cost $14 to $44, and half cost less than $19.

UGREEN

2.5 Speed, USB, RJ45, Realtek

+2.5 Gbps speed over RJ45 for faster wired networks
+Aluminum body for a sturdy build
+Realtek chip for the network connection
−Requires a USB-C port on the host device
$25.99-13%List: $29.99
as of 11/04/2026 11:07 PST - Details
StarTech.com

2.5 Speed, USB, RJ45, Realtek

+Supports 2.5 Gbps Ethernet speeds over a USB connection
+Uses a Realtek chip for network connectivity
+Multi-speed design works with NBASE-T networks
−Speed depends on the USB port and cable used
$44.99
as of 11/04/2026 03:08 PST - Details
StarTech.com

2.5 Speed, USB, RJ45, Realtek

+2.5 Gbps Ethernet speed over USB-C
+Connects to Thunderbolt 3 ports
+Multi-speed support for 1 Gbps and lower
$48.99
as of 11/04/2026 03:07 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
Agfinest

2.5 Speed, USB, Realtek

+Delivers 2.5 gigabit speed over USB
+Offers both USB-C and USB-A connections
+Uses a Realtek chip for network connectivity
$19.99-20%List: $24.99
as of 11/04/2026 10:06 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
AkpzkyywnSpec score 7.8

2.5 Speed, 2 Ports, PCIe, RJ45

+Two RJ45 ports for dual wired connections
+2.5Gbps speed per port
+Connects to a PCIe slot
−Takes up a PCIe slot
$116.07
as of 11/04/2026 10:07 PST - Details
VogzoneSpec score 7.6

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
OLurkthu

2.5 Speed, M.2, Realtek

+2.5 Gbps speed for faster wired networking than gigabit
+Uses M.2 A+E key slot, saving a PCIe slot
+Realtek RTL8125B chip for wired connectivity
−Requires an M.2 A+E key slot on the motherboard
$13.30
as of 11/04/2026 03:08 PST - Details
OLurkthu

2.5 Speed, M.2, RJ45, Realtek

+Supports 2.5G, 1G and 100M wired speeds
+RJ45 port for standard Ethernet cables
+Realtek RTL8125BG chip for wired connectivity
−Requires an M.2 A+E key slot on the motherboard
$14.08
as of 11/04/2026 03:07 PST - Details
Derapid

2.5 Speed, PCIe, Realtek

+Supports 2.5 Gbps wired connection speed
+Installs in a PCI Express x1 slot
+Low-profile bracket fits small form factor cases
$16.99
as of 11/04/2026 10:08 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
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
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
Uni

2.5 Speed, USB, RJ45, Realtek

+Faster 2.5 Gbps wired network speed
+Realtek network chip
+Sturdy aluminum body
$17.13-5%Was: $18.04
as of 11/04/2026 10:05 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
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
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
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
UeeKKoo

2.5 Speed, USB, Realtek

+Supports 2.5 Gbps network speeds
+USB 3.2 Gen1 connection suits high-speed wired networking
+Realtek chipset listed for the network controller
−Requires a USB 3.0 or faster port for full speed
$24.86
as of 11/04/2026 06:06 PST - Details
H!Fiber.comSpec score 7.6

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.
XikeStor

2.5 Speed, USB, Realtek

+USB 3.0 interface connects to laptops without a PCIe slot
+2.5 Gbps speed, faster than standard gigabit Ethernet
+Realtek RTL8156B chip
−Speed is capped by the USB port it plugs into
No price recorded yet.
10GtekSpec score 7.6

2.5 Speed, 1 Ports, PCIe, RJ45

+Supports 2.5G, gigabit, and 100Mbps speeds
+Installs in a PCIe slot for desktop computers
+Uses a single RJ45 port for wired connections
$14.99
as of 11/04/2026 03:06 PST - Details
6COMSpec score 7.6

2.5 Speed, 1 Ports, PCIe, RJ45

+Supports 2.5 Gbps wired connection speed
+Single RJ45 port for a standard Ethernet cable
+Installs in a PCI Express x1 slot
$18.04
as of 11/04/2026 10:08 PST - Details
Yubjiang

2.5 Speed, M.2, RJ45, Realtek

+Delivers 2.5 gigabit speed over an RJ45 port
+Fits the M.2 A+E Key slot for compact systems
+Uses a Realtek RTL8125B chip
$19.95
as of 11/04/2026 03:07 PST - Details
Vicfluxion

2.5 Speed, USB, RJ45, Realtek

+2.5Gbps wired Ethernet speed
+Type-C connector for laptops
+Supports power delivery pass-through
$23.99
as of 11/04/2026 03:07 PST - Details
Yeeliya

2.5 Speed, PCIe, RJ45, Realtek

+Supports 2.5 Gbps wired connection speed
+Installs in a PCI Express slot
+Uses a single x1 PCIe lane
$13.99
as of 11/04/2026 10:06 PST - Details

Compare specs

network cardSpeedInterfacePort typeControllerSpec scorePrice
2.5USBRJ45Realtekn/a$25.99
as of 11/04/2026 11:07 PST - Details
2.5USBRJ45Realtekn/a$44.99
as of 11/04/2026 03:08 PST - Details
2.5USBRJ45Realtekn/a$48.99
as of 11/04/2026 03:07 PST - Details
2.5USBRJ45Realtekn/a$15.99
as of 11/04/2026 11:06 PST - Details
2.5USBRealtekn/a$19.99
as of 11/04/2026 10:06 PST - Details
2.5PCIeRJ45Realtekn/a$16.01
as of 11/04/2026 10:09 PST - Details
2.5PCIeRJ45Realtek7.8$116.07
as of 11/04/2026 10:07 PST - Details
2.5PCIeRJ45Realtek7.6$15.99
as of 11/04/2026 10:06 PST - Details
2.5M.2Realtekn/a$13.30
as of 11/04/2026 03:08 PST - Details
2.5M.2RJ45Realtekn/a$14.08
as of 11/04/2026 03:07 PST - Details

Before you buy

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