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2.5 Gbps Network Cards

All Network Cards

8 2.5 gbps network cards from StarTech.com, IO Crest, Jauarta and more. Most cost $15 to $56, and half cost less than $18.

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
SerounderSpec score 8.6

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.
YjntoximcSpec score 8.6

2.5 Speed, 1 Ports, USB, SFP

+Supports 2.5 Gbps wired connection speed
+Single port for SFP fiber optic connections
+Connects through a USB-C 3.0 port
$56.90
as of 11/04/2026 21:07 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.
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
StarTech.comSpec score 8.6

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
No price recorded yet.

Compare specs

network cardSpeedInterfacePort typeControllerSpec scorePrice
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
2.5M.2RJ45Intel8.6No current price
2.5USBSFP8.6$56.90
as of 11/04/2026 21:07 PST - Details
2.5PCIeRJ45Realtek8.6No current price
2.5PCIeRJ45Realtek8.6$14.99
as of 11/04/2026 21:09 PST - Details
2.5PCIeRJ45Realtek8.6$18.04
as of 11/04/2026 10:08 PST - Details
2.5PCIeRJ45Intel8.6No current price

Before you buy

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