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2.5 Gbps Network Cards

All Network Cards

40 2.5 gbps network cards from StarTech.com, IO Crest, Jauarta and more. Most cost $16 to $116, and half cost less than $21.

Nicgiga

2.5 Speed, PCIe, RJ45, Realtek

+2.5 speed: the highest speed of the 114 here
$17.99-28%List: $24.99
as of 11/04/2026 10:09 PST - Details
TRENDnet

2.5 Speed, PCIe, RJ45

+2.5 speed: the highest speed of the 114 here
$19.99-20%Was: $24.99
as of 11/04/2026 10:06 PST - Details
Qronoz

2.5 Speed, PCIe

+2.5 Gbps speed, faster than standard gigabit networks
+PCIe interface fits a standard desktop expansion slot
+Includes an active cooling fan
−Active fan adds a moving part that can make noise
$25.99-13%Was: $29.99
as of 11/04/2026 21:11 PST - Details
AkpzkyywnSpec score 8.9

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 8.6

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
X-MediaSpec score 8.6

2.5 Speed, 1 Ports, PCIe, Intel

+2.5 Gbps speed, faster than standard Gigabit
+PCIe x1 slot fits smaller expansion slots
+Low-profile bracket for compact builds
−Single port limits connections to one network
$24.99
as of 11/04/2026 21:11 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
YrwygcgwySpec score 9.5

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.
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
YuanLey

2.5 Speed, PCIe, RJ45, Realtek

+2.5 speed: the highest speed of the 114 here
$18.88-10%List: $20.98
as of 11/04/2026 10:09 PST - Details
YuanLey

2.5 Speed, PCIe, RJ45, Realtek

+2.5 speed: the highest speed of the 114 here
$17.98-10%List: $19.98
as of 11/04/2026 10:09 PST - Details
Vimin

2.5 Speed, PCIe, RJ45, Realtek

+2.5 speed: the highest speed of the 114 here
$17.98-10%List: $19.98
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
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 21:09 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
H!Fiber.comSpec score 8.6

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.
AkpzkyywnSpec score 9.5

2.5 Speed, 4 Ports, PCIe, RJ45

+Four RJ45 ports in a single card
+PCIe interface for modern desktops and servers
+Realtek RTL8125BG and Intel i226 chipset options
$325.14
as of 11/04/2026 10:07 PST - Details
AkpzkyywnSpec score 8.9

2.5 Speed, 2 Ports, PCIe, RJ45

+2.5 Gbps speed on each RJ45 port
+Two RJ45 ports for two connections
+PCI Express interface with Intel I226 chip
$210.14
as of 11/04/2026 10:07 PST - Details
10GtekSpec score 8.6

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 21:09 PST - Details
6COMSpec score 8.6

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
Rielincard

2.5 Speed, PCIe, RJ45, Intel

+2.5Gbps wired Ethernet speed
+Intel I226-V chip
+Low-profile bracket for small cases
$26.99
as of 11/04/2026 10:08 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
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
ULANSeN

2.5 Speed, PCIe, RJ45, Intel

+Two 2.5GBase-T RJ45 ports
+Intel I225-V and I226-V controllers
+Supports 2500, 1000 and 100Mbps speeds
$45.99
as of 11/04/2026 21:10 PST - Details
Mercusys

2.5 Speed, PCIe, RJ45

+2.5 Gigabit speed over RJ45 ports
+Low-profile design fits small cases
+Energy Efficient Ethernet support
$23.47
as of 11/04/2026 10:08 PST - Details

Compare specs

network cardSpeedInterfacePort typeControllerSpec scorePrice
2.5PCIeRJ45n/a$27.99
as of 11/04/2026 10:07 PST - Details
2.5PCIeRJ45Realtekn/a$17.99
as of 11/04/2026 10:09 PST - Details
2.5PCIeRJ45n/a$19.99
as of 11/04/2026 10:06 PST - Details
2.5PCIen/a$25.99
as of 11/04/2026 21:11 PST - Details
2.5PCIeRJ45Realtek8.9$116.07
as of 11/04/2026 10:07 PST - Details
2.5PCIeRJ45Realtek8.6$15.99
as of 11/04/2026 10:06 PST - Details
2.5PCIeIntel8.6$24.99
as of 11/04/2026 21:11 PST - Details
2.5PCIeRJ45Inteln/a$193.90
as of 11/04/2026 10:07 PST - Details
2.5PCIeRJ45Intel9.5No current price
2.5PCIeRJ45Realtekn/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.